Itemized Deductions – Interest You Paid 5070 Income Tax 2025 26

United States income tax looking at itemized deductions reported on schedule A for the category of interest you paid. So, get ready and some coffee so we could stave off the government attack with income tax preparation. Note, you can find the form 1040 instructions for schedule A itemized deductions tax year 2025 at the IRS website irs.gov. That's irs.gov. Remember in the first half of that income tax formula is basically a funny income statement replacing the expenses with two categories of deductions, above the line deductions or adjustments to income, below the line deductions, greater of standard or itemized deductions, only taking the itemized deductions if they clear the standard deduction threshold. This is the tax and credits section of the form 1040 page two, 12E, where we have the standard deduction or itemized deduction, itemizing if we're greater than the standard which is listed on the left for single filers, 15,750, double for married, 31,500, 23,625 in the middle. We got to clear that threshold to itemize, typically happening if someone owns a home in a high cost of living area pushing up the mortgage interest as well as property taxes. This is the schedule A itemized deductions. We're focusing here on the interest you paid. This is the main category that could push people over. It's often also one that people get most confused and have to work into and think about when they think of their major of purchase of their life, a home. So, in other words, uh it's the deduction that could push people over the threshold to itemized in that if we have a standard deduction, uh we have to clear that hurdle. If we buy a home, then we might have the mortgage on the home and the interest portion of those mortgage payments are what we're talking about here, typically reported on the form 1098. You couple that with the property taxes and it could push you over the threshold. However, from a planning context, we want to note upfront we'll talk about it more as we go. You need to actually do projections and be quite careful to make sure that you're getting the tax advantage you think you're getting when you're thinking about it in terms of a big purchase such as a home purchase and also you would like to have an external opinion giving you this information. In other words, someone that's not getting paid directly from the sale of the home or the related loan on the home such as possibly an income tax professional so that we can actually run the numbers and see uh what the actual tax benefits are. One of the main problems being that we have to clear this hurdle. If we just barely clear this hurdle, if you buy a home and the interest on the home and the property taxes are just barely bringing you over 15,750 or it's barely over 31,500 if married, you're not really getting a benefit of of the amount of the mortgage interest. You're getting a benefit of the difference between the standard deduction you would have got anyways and the high and the higher amount that you got to because you were able to itemize. Much more complex calculation. It also has impacts in that the interest you pay will actually go down over the life of the loan. Therefore, the benefits you get in year one of the loan will be substantially higher than year whatever, 30, 15 of the loan because of that. Some things to keep in mind. Okay. So, we're going to then say that the schedule A itemized uh interest you paid. So, schedule A includes certain deductible personal interest expenses. So, note this is one of those places where you would think it's not a normal deduction. What's a normal deduction for income taxes? The things you needed to consume in order to generate revenue, most clearly seen on something like a schedule C where the business income and expenses were used to generate the income. You might say, "Well, I need a home in order to generate income." True, but where the home is and how big the home is isn't really directly related to the income that you are generating. It's a personal thing. And so, therefore, these deductions are really kind of more political deductions, which have their benefit, but they also tend to subsidize whatever they're they're aimed at, which in this case is real estate market and finance uh market, right? So, that means that the housing prices go up over time in the long run, and basically, we just end up with a more complicated system that we got to figure out in order to determine if we could afford the home and what are the cost-benefit analysis. So, the most common deductible interest is the home mortgage interest. So, interest deductions are generally tied to policy goals encouraging home ownership. So, from a political standpoint, I just told you my opinion. My opinion is in the long term, it's not really helping you buy a home because the market is going to equalize, and it's just going to be a situation where it's more complex to figure out how to buy the home because you have to deal with you have the the mortgage interest and whatnot. Uh you know, that's it's a little bit more nuanced than that, but that's the general take. In the short term, it could be, of course, more beneficial, and it's clearly something that the the home owners or the home industry likes because it's going to boost up in the short run, and it gives a a marketing capacity to say, "Hey, look, the government basically wants you to buy a home. The home is the American dream. Is the quotes around that one, right?" Ob- obviously, the people that are in the industry of home selling would like to push that narrative. I'm not saying it's a totally bad or wrong narrative, but I do think it's it's over It's a little overhyped, or you have to think about who's benefiting from whatever narrative is being is being put out there. So, that means the mortgage on the on the home interest possibly deductible. Notice that other interest isn't deductible. Meaning, if I bought a car, it's also personal property, you would think I need the car to go to work. Why don't I get to deduct the interest for the car? Well, possibly because the car manufacturers aren't as good at lobbying. I don't know. I'm just Maybe I'm a little skeptical here, but interest credit card interest, you have a similar kind of situation. It also leads to planning situations where if you could basically consolidate things under something that's deductible, that could be beneficial, and then you have to come up with rules to kind of stop people from doing that, and we end up with these games that are getting played because of the deductibility of the interest. So, many personal interest expenses are not deductible. Meaning, most other interest isn't. If you have interest on your on your credit card, not typically deductible unless it's like a business credit card or something like that. Similar with your car, not deductible typically unless it's a business car or something like that. The home is the exception. It's a weird exception, and it leads to all these kind of things that you could start to think about and say, "Well, wouldn't it be better if I had debt if I had it in some kind of debt that was deductible?" Student loan interest is, you know, sometimes deductible. Mortgage interest. Is there a way to do that? You start getting into these weird tax planning because of it and so on. So interest deductions reduce taxable income for qualifying taxpayers. So rules for deductible interest are highly documented documentation driven. So the IRS wants to obviously double check this as much as they can so it doesn't get out of control. They try to highly regulate it and put pressure on the financial institutions generally the banks that being the typical place people go for the home loans although it doesn't have to be you know the only place that they go for the home loan. So taxpayers should distinguish personal investment and business interest. So now we have personal kind of interest but the interest could still be for the home now which is a personal investment which could be deductible investment interest. So now you have a situation where you're trying to generate revenue but it's typically passive income. That's why it's kind of a different category and business interest if you owned the same property but it was part of your business then you would think it would be deductible not on the schedule A but on like a schedule C as as a business income. Overview of the home mortgage interest. Home mortgage interest is commonly deductible on a schedule A but remember you have to clear the threshold even then it is the thing that typically often could push people over but that's not the one and only reason why you should buy a home but it could be calculated in the cost benefit analysis to think about how much home you could you can afford although it's more complicated than you would think. You have to run the projections. The deduction generally applies to primary residence and one second home. So this is where it gets weird on the itemized deductions. They kind of sell it like where it's the American dream to own a home and this and that but you you get into second homes and I know it'd be a you know a nice dream if we had two homes, but obviously that would you would think that's benefiting more wealthy individuals on the personal side of things. The argument I think for that was that, you know, people that go to Congress sometimes have a different home in Congress or right. So now they have two homes that they have to deal with, but they're doing public business over there or something, you know, but anyways, that's your primary So so now notice this also introduces another rule. Like if it's a home, a property, I have to define it as the primary residence or a second home. So right. So now I have these What does it exactly mean to be primary and second home versus you can imagine a home then being used partially or totally for rental property, which kind of compute confuses the situation if I have one home, which I'm using partially for rental property now, but I pay one mortgage on the place or I have five homes now and then I have to categorize well, I have one and a second home could be a a a a one and a second and then investment, right? So now you have these different categories that you can think of that are going to cause kind of different problems. You can imagine a rental home, you can have multiple homes, one rental, one non-rental, you can have one home that could have a rental component to it and so on. So then we have a mortgage interest must relate to the qualified residence debt. So now we have this problem of what does it mean to be qualified residence debt? Now in a normal situation, it's pretty straightforward. You you buy the home, you get a loan out from the bank in order to pay for the property. Note that the property is now yours just to structure this in our minds. A lot of people kind of jokingly I think it originally was a joke to say that, you know, the bank owns 80% of the home because what happened? I bought the home. I took a loan out for 80% of it. Therefore, the bank owns 80% of it. That's not exactly correct. You own 100% of the home, but you owe the bank 80% of the value, you know, of the home in dollars. And uh and if you don't do that, the loan is collateral and therefore they can foreclose on the home. What's the difference between that and the bank owning the home? Well, the bank as long as you pay off the loan doesn't have any control of what you do with the home. If they owned the home and had an 80% interest, they would come into your kitchen table and as you're as you're eating, they would tell you what kind of color they want you to paint the outside of the house or something. They can't do that. They can't do anything unless you don't pay off the the mortgage. So, the reality of the situation is you you got the loan in order to buy the home. The home is yours. You can do whatever you want with it, but the the the the home is collateral. Therefore, if you don't pay off the loan, there is recourse, limited recourse, but the recourse could be, you know, repossessing the home. There's a difference there. Any case. So, interest is commonly reported on form 1098 mortgage interest statement. So, most of the time that's usually pretty easy because you buy the home and get the loan from a standard financial institution. But again, you can imagine getting a loan from other sources than financial institutions where, you know, again, their their process might not be as streamlined to properly categorize the loan interest and so on. Home mortgage interest is often major itemized deduction for for homeowners, so it's the big one typically, but as they increase the standard deduction, it's really the home ownership in the high cost of living areas that it's likely to lead to these large uh loan amounts that might in and of itself kind of push us over the threshold from itemizing from standard to itemize. Mortgage interest deductions can significantly impact uh tax planning. So, obviously when you buy the home, that's a that's a big decision in and of itself and it could have tax implications, but those tax implications have to be thought out carefully in terms of the purchase process as well as the changes of those tax implications as time uh passes. IRS rules uh limit deductibility in certain uh situations. So, qualified residence interest. So, qualified residence interest generally includes interest on on acquisition indebtedness. So, a straightforward thing uh a home purchase is pretty straightforward, right? You buy the home, you get the loan out, you put 10 to 20% down or whatever, and you take the loan out to to to pay for the other 80%. Not all the payments on the loan are deductible, just the interest portion is deductible, which could be quite significant if it's a substantially expensive home. So, acquisition debt is debt used to buy, build, or substantially improve the home. This becomes important because you can imagine a situation where someone's in financial difficulty, and as a financial planner, what would you want to do? You'd want to say, "What kind of debt do you have and how can we reduce the cost of those debts?" The largest interest on most on debts are usually going to be from credit cards or possibly uh auto loans and and things like that. And it would be nice if you could say, "Well, what I'd like to do is consolidate that into the home using the home as collateral." Why? Because the fact that the loan is collateral means that the bank might allow a lower interest rate and it's tax deductible if it were to qualify. But the IRS wants to limit that because because again, the whole purpose here in in theory is to help you buy uh the home. It's not so that you can buy a car and then refinance the car under the home so that you get a deduction for the amount of of the your car purchase. You see, these are the externalities. These are from from uh from a Thomas Sowell perspective that the past level one tier thinking, you know, I I you could see the ripple effect that happens with these kind of things uh as they go through and then they got to go back and and put in new definitions which further complicates things uh as as we move forward. So, the home generally secures uh the debt. So, when you buy the home, the home becomes like collateral on the debt. That doesn't mean the bank owns the home. That means if you don't pay off the loan, then the then they have recourse on it. But they can't show up at your kitchen table and tell you to paint it pink because uh because they need I don't know, whatever they A qualified residence usually includes the taxpayer's uh main home, obviously. A second home may also qualify under IRS rules. Uh mortgage proceeds uh used for non-qualified purposes may uh reduce the deductibility. So, now this gets confusing again because you could imagine a situation where you're trying to help someone out on their debt and they bought this expensive car and they got this debt everywhere and they have these high interest rates on their credit cards and you would still think, "Hey, it would be beneficial. The bank will give me lower rates if I can consolidate it uh with a home with a with a with a house as collateral because that's less risk to the bank." So, so now you So, you could still end up with a situation where the collateral on the house is being used to finance debt that wasn't used to build or improve the home. And then you get these weird situations of well, which amount of the debt that has the home as collateral is deductible and which is not deductible, right? You So, you have to be careful in those situations. Uh usually it's fairly straightforward, but you got but you but when you get in those muddy areas. So, interest on unsecured personal loans is generally not deductible uh on schedule A. So, interest on unsecured loans. So, now the now the house is basically not collateral. You would think if you used if you used the loan to buy the house, normally the financial institution or whoever gave you the money would want the house as collateral, but you can imagine situation where it wouldn't be, in which case the IRS is going to be skeptical of the structure as something funny's going on, you would think, right? So, main home and second home rules. A main home generally includes the taxpayer's principal residence. A second home may include a house, condominium, a cooperative, mobile home, or boat. So, the property generally must include sleeping, cooking, toilet facilities. So, now you end up with a situation where people are going to be like, "Hey, that's great. I would like to have some kind of second home where I can finance something and have it be deductible. What if I just buy a boat cuz I want a boat?" Well, a boat isn't really a home, but it could be. But, you have to So, then So, what what do I have to do to the boat so I could possibly buy my cool boat, but I still get to deduct it like a second home? Well, the property generally must include sleeping, cooking, and toilet facilities, right? If it doesn't have those things, if you just have a speedboat, then it might not qualify. So, again, you you end up with these kind of ex- these kind of things that are rippling out from this from these rules that happen on the interest, which personally I I don't think they probably shouldn't have been in there in the first place, but they're hard to remove after they've already been in in in there, >> [laughter] >> so the taxpayers may generally choose which property is treated as a second home. So as long as they qualify for it under the rules. So now you've got two properties that qualify. You have a principal residence and your second home. Well, is the houseboat your principal residence and the second home the secondary or the other is your you know, which is the principal residence? So this also becomes an issue when you sell the property, right? Because when I sell the property, then I might have this exemption situation on the principal residence. Well, that means I have to have a principal residence. So you could end up in a situation where well, if I want to sell my boat, but I'm going to have a gain on it. Maybe I move into my boat long enough for it to be a principal residence. You know, and then I can sell it and and basically not have an not have a gain on you know, you again, you end up with these kind of weird type of of scenarios or tax planning that could come up because of these specific rules that are based on interest being deductible, but only in specific areas even though it's personal property. So rental use of second home may create additional limitations. Now usually if you have two properties that second property is is either going to be vacation property or it's going to be your boat or whatever or it's going to be or it's going to be or it's going to be rental property. Now if it's rental property, then it's not really your second home where the interest would be deductible on a schedule A. It would probably still be deductible, but on a schedule E. So now we have different kind of definitions of of the property and the deductibility of the of the interest depending on those definitions. Now if if it was rental property, then it makes sense that the interest would be deductible because theoretically the the purpose of that property is revenue generation and you had to have the debt in order to generate the revenue. That's an ordinary business expense you would think. So so you would think that would be more likely to be deductible than your principal residence which is clearly you know personal. So mixed personal and rental use may require allocation of expenses. So what if you have a home it's your principal residence but you rent out it's a big home you rent out part of the home. Okay well now we have a problem because like the part of the home that's being rented out you if the whole thing was rented you would think that the that the the rental portion and the loan applied to it would be deductible. If it was your personal residence you would think normally it wouldn't be deductible except that they made an exception that it is deductible but they're deductible in separate areas. The the personal residence deducted on the schedule A and the and the rental property on the schedule E. But it's only one house and you have one loan on it. Therefore you're going to have to prorate or do something you would think with the interest basically taking the square footage maybe of the rental property as a proportion or ratio to the total square footage and deducting it in the proper place. So so if you have one property but you're renting part of it then that then you get this messy kind of kind of situation there. So vacation homes often require a special analysis. So now what we might have a whole another thing on schedule E vacation home which of course is something that comes up with more wealthy individuals. More wealthy individuals are usually types of taxpayers where you're going to have more complex tax returns but do less taxes spending more of your time on like tax planning. So mortgage debt limitation rules. Deductibility of mortgage interest may be limited based on loan balances. So now we the the IRS remember the the the the the marketing pitch on being able to deduct mortgage interest is that the owning of the home is the American dream. But if you start to say that you have if you have these loan balances that are massively high, it's kind of like really do we really need to be supporting, you know, a really like these cuz cuz if the loan mean if you're borrowing a million dollars, that's the loan. So you would expect that that that that, you know, that you put 20% down so that so the house price would be even higher than than that, right? So so that seems kind of kind of excessive when you're when the sales pitch is like that the American dream is to own just like a home, you know. So current law generally generally limits acquisition indebtedness interest deductions. So >> [snorts] >> interest on debt above statutory thresholds may be non-deductible. Refinanced debt may retain acquisition debt treatment in some cases. So home equity borrowing rules change significantly under the recent laws. So so SALT work can help us with those limitations, but they're usually going to be more significant when we're actually doing tax planning instead of the tax preparation for higher income individuals. Uh taxpayers should review current IRS limitations carefully. Large mortgages may trigger partial disallowance calculations. Again, that's usually going to happen on, you know, a pretty high higher income or higher thresholds. If it does happen, it could kind of complicate and make us think about, well, how exactly are we going to figure this thing out because uh it's based on the on the a loan amount and we're trying to figure out the deductibility related to the interest, right? So, you probably have to you know, you could do a imagine a ratio calculation. But in any case, home equity loan interest. So, home equity loan interest is not automatically uh deductible. Interest may qualify if loan uh proceeds are used to buy, build, or improve the home securing the loan. So, uh when we think of the house purchase, obviously when we buy the house, you would think that you're going to get a loan in order to complete the purchase, putting 20% down, take it a loan to possibly buy the rest. Now, over time, you might pay off that loan so that so and the value of the home might go up. So, remember that the from a property standpoint, the home is the one property which you're expecting hopefully will increase in value. Most other property, personal property, does not. Meaning, if you buy a car, it's going to go down in value. It's going to depreciate. If you buy if you buy a lawnmower, it's going to depreciate in value and so on and so forth. The home, because it's it's limited real estate, just the real estate itself, may have it go up uh in value instead of deteriorating over time. So, that means that over time, one, you're going to pay off the loan, which increases the quote equity, which is going to be the the the the the value of the home minus the loan that you own on it, the amount you would you would get net if you sold it in in theory, although we don't really know what that is until we actually sell it. And we're hoping that the value of the home goes up in value, just because of location, location, location, if nothing else, which would also increase the equity even if the loan amount was the same. That adds the ability to say, "Hey, bank, I you were willing to give me 20% loan. Well, now I've paid off some of the loan and the value is worth higher if I give you this appraisal, I would like to borrow more money against the loan. Okay, great. But remember, the IRS isn't in the business of doesn't want to to allow you to use that money to just do anything with it just cuz the loan is collateral because the the objective of the whole thing is supposed to be to allow you to buy a home. So it's they shouldn't they don't really want you to go buy a car and then finance it with the home because because that defeats the purpose. So you end up with these weird situations where you would like to to to support things with the home, but the IRS wants to limit it to when you buy the home, build the home, or improve the home, not using it to consolidate your other debt on cars and and interest or, you know, to buy personal stuff is is the general problem here. Okay. So personal uses of home equity proceeds generally do not qualify. Using home equity funds for credit cards or vacations usually does not create deductible interest. This becomes, of course, a problem because it's still like something that people would want to do, right? Because you could say I I I still might want to take the use the equity in the home as collateral to give me money to pay for these other things, but now the the same mortgage interest is going to give me as a tax preparer this this documentation and I have to somehow figure out what the loan proceeds were actually used for, which might not is not typically going to be on the on the 1098 form. Okay, so then so documentation of how proceeds were used uh is important. So whenever you take out a new loan, if you're going to be building to the home, you want to make sure that documentation is there so that in the event that you have an audit and they say, "Hey, look, you you you've got this new loan. Did you use the loan to actually improve the home? We're going to have to prove that in in an audit. Taxpayers should maintain records tracing loan proceeds. IRS focuses heavily on use of fund analysis. So, if you take out a loan using the home as collateral, if you want the deductibility of the interest, then you're going to have to prove that you used it in the way that the IRS wants you to use it, you know. So, refinance mortgage interest. Refinance acquisition debt may continue to qualify for a deduction. Cash-out refinancing may require a separate tracking of the loan pre- proceeds. Interest related to non-qualified cash-out use uses may be non-deductible. Okay, so you have a common situation of of a loan. If you took the loan out and at the time you took the loan out, the interest on the loan was like higher, it was like 8% and then at some future point, the the interest rates are at 3%. Well, now you can imagine a situation where you're going to change the loan, but you're not going to actually take out a new loan. You're not You're not trying to get more money necessarily to put to put into the house. You're just trying to take advantage of the change in the interest rates so that you're paying less on the borrowing. And you would think in those cases that the that the refinance loan, the interest on it would be deductible in in most cases because why? Because the use of the money is still to finance the home. It's just that the the the the uh uh debt or the amount that you have to pay for the usage of the money is reduced because the market has changed. So, points paid on refinancing are often amortized. So, now you have this whole thing about points become a problem because you can because there could be an issue with the definition of what are points, what do points actually mean? And some points could be basically thought of as interest. And so if if they're interest, then we might be able to amortize the interest or the points over the lifetime of the loan. Or you could use a more complex calculation, an effective calculation, but that's the general idea. Refinancing can affect future deductible interest calculations. Taxpayers should retain refinancing closing documents. So the closing documents are going to break out what the funds were used for and give you these points calculations and whatnot to make sure that we're doing that properly. So the hardest thing about the the home purchase is usually in the time or year the home was purchased. We want the closing documents and the loan documentation to make sure that we're properly doing the amortization for the points or whatever, and then that we have the loan about calculated properly, and we've got the breakout of deductible interest versus not deductible. Fine. And then the refinancing. If a refinancing happens or new loan happens, we want to make sure that we have those closing documents so we can get the points calculated. And then once that's already done, then it's pretty easy from there if it was done properly to start with cuz we can just follow the procedure that happened in the past. So from a data input tax preparation standpoint, it's basically like we want to do extra research when we first have the loan on the books or the refinancing, making sure we have everything properly allocated and documented. So going forward, it should be pretty easy so we can just copy what we did last year. Deducting points. Points are prepared prepaid interest paid to the to obtain a mortgage. So interest is something that typically we pay over time, right? You pay it over the life of the loan. So, in this case, we're talking about points that are prepaid interest paid for the mortgage. So, you paid it up front, but the IRS doesn't want to give you the deduction for the interest that was all paid up front because if you could just categorize interest and say you paid it earlier, you can you can manipulate the whole thing. So, you would think that you would have to allocate the points then over the life of the loan, possibly using an effective method, meaning more interest up front later at the end, like the loan payments, but that's kind of a pain. So, often times you might be able to use a straight-line method over the 15 or 30-year loan period or whatever. Points may be deductible in the year paid under qualifying circumstances. So, purchase of a a primary residence often receives favorable treatment. So, again, we want to determine what are the points, what are not points, what qualifies as points, could some of the points be deductible up front? If we could deduct it them earlier, that would be better than later. If we can't do that, then could we just do a simple amortization? That's usually the easy thing to do over the life of the of the loan. And then, once we do it in year one, it'll just populate automatically in the software after that, or do I have to use a more complex kind of method for the amortization of the interest? So, discount points and origination fees may receive different treatment. Closing uh disclosure helps substantiate deductible amounts. So, IRS rules for points are highly specific. So, non-deductible mortgage-related costs, principal payments are are not deductible. So, obviously, when you make the loan payments, it's not the whole loan payment, it's just the interest portion of it. Homeowner insurance premiums are generally not deductible as interest. So, in other words, if you have a high loan, you might have to get a homeowner loan kind of premium uh and so on. Ti- Title insurance costs are generally not deductible. Appraisal fees are generally not deductible. Settlement and escrow charges are often are often uh deduct- non-deductible. Uh utility costs are not deductible. Mortgage interest and most personal living expenses remain non-deductible. Now, note that all of these things here are are common types of things that might be in like a closing statement uh and whatnot. And you might say, "Well, why wouldn't they be deductible if interest is deductible?" And the real question is, "Why is the interest deductible?" Because the interest is on a personal residence. So, the whole thing is the whole prop- the whole weirdness here is happening is because we're doing a personal thing, but we're getting the deduction of interest for some reason, which I think is mainly political, right? And then and so and then we have to very much limit all these other things. Whereas, if it was a real estate property, you would think most of this stuff would be deductible because it then would be a normal business expense to generate revenue of rental income. So, investment uh interest expense overview. Investment interest expense may be deductible on schedule A. So, now we're talking about some kind of investment uh property. Deductible generally applies to interest incurred to produce investment income. Now, investment income is an in- income generation thing. If it was on a schedule C and it was it was uh uh uh something you're actively involved in, then it would be clear that the inv- that it would be deductible. But, investment is a category of passive income, which which the IRS is going to be more skeptical of and have more limitations on, such as having it on the schedule A as opposed to uh uh deductible elsewhere. Deductible generally applies to interest incurred to produce investment income. Investment interest is commonly reported separately from the mortgage interest. Deduction is generally limited to net investment income. In other words, you can't really have more they don't want they're going to give you limitations on the losses because it's a passive income. So they feel like they're giving you a benefit by allowing you the deduction at all because it's passive income and not active income. Meaning you're not actively involved in it really. And then and and they're going to limit the losses. So they don't want to have losses on the passive. So excess investment interest may carry forward to future years. So we always have this kind of thing of well, if I can't get the deduction this year, it's kind of not fair. It's a legitimate deduction. So it should be that I can at least match it up against income in the future. Meaning you have a carry forward situation. Form 4952 is commonly used to calculate limitations. Investment interest differs significantly from business interest. So examples of investment interest. So margin account interest may qualify as investment interest. Interest on loans used to buy taxable investments may qualify. Borrowing to purchase stocks or bonds may create deductible investment interest. Now notice some of these are kind of really kind of risky things for for the most part. Meaning you're leveraging, right? So now you're saying look, it's a business play that I'm doing here. I want to buy stocks and bonds, but I don't have the money to do it. So I'm going to take out a loan to buy the money on the stocks and bonds. You're highly leveraged. So you could like if the stocks and bonds go up in value, it could work out great. but if they go down in value, then that could be a problem. From the IRS's perspective, this isn't as useful of economic activity as starting a going business, like a schedule C kind of business, because a schedule C business, you're actually providing something that people want. You're generating revenue. When you're doing this, you're basically speculating, right? You take a loan out to speculate on the market going up or down. Right? Which isn't something you really want to incentivize, right? It's not really exactly a business, you know. So, interest related to tax-exempt interest is generally non-deductible. Passive activity rules may interact with investment interest calculations. So, passive activities is another kind of thing that limits possibly losses for the most part, oftentimes for uh for for passive activities that you're not actively involved in. Proper tracing of borrowed funds is important. Investment interest limitation often reduce current deductions. Personal interest generally not deductible. So, person personal interest is generally not deductible under federal law. Credit card interest, for example, is personal interest purchases usually non-deductible. Auto loan interest for personal vehicles generally non-deductible. Interest on personal consumer debt is generally non-deductible. You've got personal loans type typically do not create schedule A deduction. Congress historically limited personal interest deductions. Tax law generally favors business and investment-related borrowing. Why some some interest is deductible. Tax law often encourages economically favored activities. So, one reason is they're trying to stimulate the stock market, right? How how uh ownership has historically received tax incentives. So, that's the political component. So, they're trying to market it as uh we're going to give you a benefit, right? We're helping you out with the and and so that's politically useful. Business borrowing is generally connected to uh, gen- income generation, normal business activity, so that actually makes sense. Investment borrowing may support tax taxable investment income, similar to the business income argument, but for passive uh, investments. Purely personal consumption is generally not substan- uh, subsidized through deductions, meaning if you want personal stuff, you pay for your own personal stuff. It shouldn't be subsidized by the tax code. Interest deductions reflect economic and policy considerations. Deductibility rules attempt to prevent abuse and double benefit. Schedule A versus Schedule C. Schedule A generally covers qualified personal items uh, interest deduction. Schedule C interest relates to business activities. So, business interest is commonly deducted against business income. So, if if it was business debt, then yeah, it would you would think it would be deductible. Business interest often reduces self-employment income. Schedule C deductions generally do not require itemizing. Interest allocation uh, becomes important when loans uh, have mixed use. So, if you have a home loan and then you have a uh, uh, business part of your home, you have an office, then you might have a situation where part of your home is is allocated to business, possibly prorating the interest to one portion deducted on the Schedule C, portion on the Schedule A. Proper classification affects tax outcomes significantly. Schedule A versus Schedule E. Similarly, Schedule E commonly reports rental activity. Mortgage interest for rental property is generally deductible on the Schedule E cuz it's a business kind of thing for the most part. Again, rental interest is generally treated as a business-like expense. Personal residence mortgage interest belongs on Schedule A. Mixed-use properties may require allocation between Schedule A and E. So, now you have one property instead of a business office in it, you have a rental space within that home, then you might have to prorate that one 1098 between the two, EA. Vehicle rental properties often involve complex allocation vacation rental properties have complex rules. So, accurate records are essential. Common documentation We have the form 1098 commonly reports the mortgage interest paid. Lenders generally issue form 1098 annually. Closing disclosure support mortgage-related deductions. So, loan agreements help substantiate. Bank statement may support interest payments. Refinancing paperwork is important. Investment accounts. So, obviously, you're going to get the loan out, you get the closing document whether it's a first-time purchase or a refinance or whatever. And then you're going to get the 1098s typically annually and you have your documentation going through your bank for payments that you're making to verify it. Common audit and compliance issues. Deducting non-deductible personal interest is a common problem because maybe you you you're not properly allocating the loan proceeds. Incorrectly deducting interest on non-qualified home equity debt. Misallocating mixed-used proceeds, that's always complicated. Claiming rental interest on Schedule A. Poor documentation of refinance debt used. Deducting principal instead of interest, can't do that. Failing to apply investment interest limitations properly. Evaluating the real tax benefit. Mortgage interest deductions may not provide a full dollar-for-dollar benefit. Many taxpayers may already be below the standard deduction threshold. Incremental tax savings may be smaller than expected, meaning don't let the mortgage broker just talk you into buying a home saying that it's going to be this huge tax benefit windfall. There's a tax implication, but you have to make sure that you're you're calculating it properly. High-income taxpayers may receive larger benefits from deductions. Taxpayers should evaluate after-tax borrowing costs. Homeowner deductions should not rely solely on tax deductions. Economic and lifestyle factors remain important. Interest deductions and the housing market. Mortgage interest deductions may encourage home ownership. That's the argument. I again, I'm not sure it's totally the as big an argument in the long run as they map it to be because again, the markets kind of compensate for it over time. Tax incentives may influence housing market. Real estate market may partially price in tax advantage. They certainly do. Tax benefit often vary based on income and location. High-cost housing areas may produce larger larger mortgage deductions, meaning high-cost areas and high-cost states are usually benefiting from this the most from a you know, tax benefit. Interest deductions can indirectly subsidize borrowing. Policy makers continue debating the effectiveness of these incentives. What's new for tax year 2025? Mortgage interest limitations remain important for homeowners. Home equity loan tracing rules continue to apply. Investment interest limitation rules remain in effect. IRS continues emphasizing documentation and substantiation high interest rate invest environments may increase taxpayer focus on deductions. Refinancing activity may create additional compliance issues and the taxpayers should review the final IRS instructions. So, what are the key takeaways? Schedule A allows deductions for certain qualified interest expenses. Home mortgage interest is the most common deductible personal interest. Personal consumer interest is generally non-deductible. Investment interest deductions are subject to limitation rules. Business and rental interest are generally deducted outside of the Schedule A. Documentation is critical. Taxpayers should evaluate the actual economic benefit when making decisions. IRS instruments and publications provide detailed guidance. The resources for further research include You can find these at the IRS website irs.gov irs.gov or at least start there. You've got the IRS Schedule A instructions 2025, IRS Form 1040 instructions. We've got the IRS Publication 936 Home Mortgage Interest Deduction, Publication 550 Investment Income Expense, IRS Publication 17 for Federal Income Tax. You've got the Form 595 I mean 4952 Investment Interest Expense Deduction. You've got the Form 1098 Mortgage Interest Statement. You can look at the instructions. Internal Revenue Code Section 163 163H.