π Qualified Auto Loan Interest Deduction β Tax Course
Watch on YouTubeVideo summary
The Qualified Auto Loan Interest Deduction is a temporary tax benefit introduced by the One Big Beautiful Bill of 2025, available to eligible taxpayers from 2025 through 2028 regardless of whether they claim the standard or itemized deduction. This unique provision allows individuals to deduct interest paid on qualified auto loans as an "above-the-line" adjustment that reduces adjusted gross income (AGI), rather than requiring them to itemize expenses like mortgage interest. To qualify for this benefit, the vehicle must be new and used exclusively for personal purposes, with its final assembly occurring in the United States; consequently, refinanced loans or those involving principal payments are not deductible, as only the direct interest component on a qualifying loan is eligible.
Taxpayers can deduct up to $10,000 of qualified auto loan interest per year, but this amount is subject to phase-out rules based on modified adjusted gross income (MAGI). The deduction begins to reduce when MAGI exceeds $100,000 for single filers or $200,000 for joint filers and is completely eliminated once income reaches $150,000 for singles or $300,000 for couples. For every dollar earned above the initial threshold, a portion of the deduction is lost; specifically, the phase-out range spans $50,000, meaning that for each $200 increase in income over the limit, the allowable deduction decreases by one unit until it reaches zero at the upper boundary.
The calculation involves determining how far an individual's income falls within the phase-out range and applying a proportional reduction to the maximum $10,000 cap. For instance, if a single taxpayer has a MAGI of $120,000 with $10,000 in qualifying interest paid, their income is $20,000 above the starting threshold, which represents 40% of the total phase-out range ($50,000). This results in a reduction of $4,000 from the potential deduction, leaving an allowable amount of $6,000. It is important to note that even if interest payments exceed $10,000, the deduction cannot surpass this cap, and any income exceeding the upper limit entirely disqualifies the taxpayer regardless of how much interest was actually paid on the loan.
While the tax code provides this specific relief for personal auto loans, Professor Farhat emphasizes practical financial wisdom by advising against taking out high-interest vehicle loans that approach mortgage-like payment structures. He suggests that paying cash or financing responsibly is preferable to relying on a deduction that may eventually expire after 2028 and could be phased out entirely depending on income levels. Ultimately, the session concludes with an encouragement for students and professionals to utilize available study tools like Farhat AI to master these complex tax rules while maintaining sound financial habits regarding vehicle purchases and loan management.
Read the full video transcript
Hello and welcome to this session. This
is professor Farhat in which we will
discuss the qualified autoloan interest.
This deduction was introduced through
the OBBA, the one big beautiful bill of
2025 as a temporary tax benefit.
Temporary means at some point it will go
away and it's temporary from the year
2025 through 2028. And this deduction
may be claimed even if a taxpayer takes
the standard deduction or didn't take
the standard deduction. It doesn't
really matter. It allows eligible
taxpayer to deduct qualified auto loan
interest that is personal in nature
which is bit unusual. Personal in nature
that's bit unusual and this is below the
line deduction. What do you mean below
the line? It means when we look at the
form 1040 when we compute the adjusted
gross income this deduction comes after
adjusted gross income it's part of
schedule 1A it's right here no tax on
car loan interest you have to provide
your VIN number you have to complete
this section and [snorts] after you
complete this section part of it will go
to line 38 along with the overtime
deduction and the notips deduction and
eventually the enhance deduction for
seniors then all these deductions will
go to additional deduction from schedule
A and it is a deduction from adjusted
gross income. So it's very important to
know that it's a from adjusted gross
income and the reason I show you this
just to kind of get you comfortable with
where does it go. So you have to fill
out this you have to fill out this form.
Now in the real world the software would
help you fill it out but you have to
understand how it works. Also you have
to understand the numbers, the figures,
the uh the deductions, the limitation
and this is what we will discuss in this
session. Let's go ahead and get started.
Before we proceed any further, I have a
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retain the material. How much can you
deduct up to $10,000? Is there a phase
out or limitation? You bet. There is.
Right. As I always say, the government
is a generous to a point. It applies
only to interest paid or acred on
qualified auto loan. It does not apply
to the principal. So the loan is not
deductible. The interest component of
the loan is deductible. Be careful. And
this is a personal deduction in nature.
And it's not an itemized deduction. But
because when you think of itemized
deduction, those are personal in nature.
Whether [snorts] you took the itemized
deduction or not, you can still take
this deduction. The first thing you need
to know is that the vehicle itself. It
has to qualify. To qualify, it must be
new. Used vehicle don't qualify. It must
be used for personal use because the
business one supposed to be on schedule
C or your uh or your uh 1120 or 1065
that's a different uh deduction. The
final assembly must occur in the US. It
means some portion of it or the final
when you put it together it has to be a
US company not US company. It has to be
put in the US manufactured in the US
loan must be a new car loan and interest
must be related to that loan directly.
So it cannot be a refinance. It must be
a no. Now there's a modified adjusted
gross income limit. Now I always say
modified. I tell you to forget about the
M and look at the just adjusted gross
income. Now because I keep telling you
this in the previous two recording I
said maybe this recording I will show
you exactly what does it mean modified
adjusted gross income is. So what does
that mean? It means you take your
adjusted gross income on this line and
you add to it certain deduction. like if
you have a Puerto Rican uh interest
income from Puerto Rico, any for any
sort of Puerto Rican bond uh foreign tax
credit and some other deduction and
you'll get to modified adjusted gross
income. Now, most taxpayers will have an
AGI. That's why we don't worry about the
modified. And if you're using the
software, the software will will take
care of that. The phase out begins at
100,000 modified adjusted gross income
for single file filers and 200 for
joint. Now you are going to to lose $200
for each $1,000 above the threshold. So
the range is $50,000. Why $50,000?
Because if you take $50,000 divided by
$200 equal to 50 of 1,000. So above
50,000 you're done. So basically you
would start at 100,000 to lose it and at
150 this 10,000 will start to go down
the 10,000 will start to go down. So
this is the 10 this is the 100,000
this is the 150k and this is the 100k.
So let's assume your modified adjusted
gross income is 110. you are 10 times
above the limit because you have 10 of
those and each one of them is 200 you
lose $2,000.
And notice 2,000 you lose you lost 20%.
And 10,000 out of 50 10 out of 50 is
20%. So you lost 20% of the deduction.
deduction
[snorts]
is fully eliminated when the AGI exceeds
150 or 250. Again, once you cross that
uh threshold, you no longer qualify. And
let me tell you something
to to tell you the truth. If someone's
paying $10,000 interest in a year for
loan vehicle, they should not be doing
that. They should not be they should not
be driving that car. That's a lot of
interest for a vehicle. A lot of
interest. So if you're interest to give
you an idea what we are looking at here
just to tell you how much is is the
interest. So if we take just for the
sake of you you might be having more but
if we take only $10,000 let's assume
that's exactly how much you paid $10,000
divided by 12. It means per month you're
paying per month 833 in interest. Now
remember the loan will have also a
principle. So your car payment is
practically it's becoming a mortgage.
You should not have that. And if you
have that, you should not have that. You
should not be driving that car if you
cannot pay for it. Anyhow, back to our
business here. Um so taxpayer above
these levels have received no auto loan
interest deduction and phase out applies
regardless of the actual interest paid.
So if you paid more just that's it,
you're done at 10,000. Let's take a look
at this multiplechoice question from
farlectures.com.
A single taxpayer has modified adjusted
gross income of 120 and otherwise
qualify for the auto loan interest
deduction before applying the phase out
the taxpayer has 10,000 of qualifying
auto interest loan. What is the
allowable deduction? All right, so this
individual
remember the 100,000 is when the phase
out start and it ends at 150. So the
range is 50,000 and this individual is
20,000 within the range
20,000
within the range cuz it's 120 20,000. So
what we have we the easiest way to do it
is if you can take 20 divided by 50 and
you will find the percentage and you
will take the percentage and this is how
much you you will be losing which is
that's 40%. You'll be losing 40%. Okay,
40%. Or the rule is for every 1,000
above 100,000 you would lose 200 and you
have 20 of them * 20 = 4,000 and 40% *
10,000 equal to you guessed it 4,000.
Therefore you would lose
you would lose 4,000. What is the
allowable deduction? The allowable
deduction is six because 10 remember if
they're asking you what's the uh
allowable or what's the what how much
you would lose. You would lose four and
what's left is six. Therefore the answer
is 6,000.
Be careful what they're asking you.
Could be an easy question but you you
answer the wrong problem. Now whether
you are a CPA exam candidate enrolled
agent what should you do? Far hat
lectures where you have exercises,
simulations, multiplechoice, true false,
AI resources, lectures like this one,
podcast to help you prepare for your
certification, to help you uh increase
your chances of doing better in your
courses. Invest in yourself. That's the
best investment you can make. And don't
get a car interest loan, period. Not
even for anything. Pay for the car. God
bless.