Is Auto Loan Interest Deductible?

Deduct the interest on loans for your fleet on Schedule C.
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Getting tax breaks from an auto loan depends on how you use the vehicle you buy. Unless you're a business owner, you generally cannot deduct the interest on a vehicle loan because the Internal Revenue Service treats it as "personal." Even if you can't claim the interest, your vehicle can bring tax relief through other deductions.

Employees and the Deduction

Using your vehicle on the job doesn't convert the interest on your loan from personal to business. You can, though, itemize as an employee expense the nonreimbursed costs of driving to perform your job. You may write off either the mileage or actual car expenses, such as gas and parking fees. For 2014, the standard rate was 56 cents per mile. Deductions for such work-related travel expenses go on Schedule A of Form 1040.

Business Owners

On Schedule C of Form 1040, you can write off the vehicle loan interest as an expense of business ownership if you're personally liable for repaying the loan. The deduction is limited to your share of the debt if others are liable with you. For example, if you're responsible for half of the loan and the interest totals $1,000, you get a $500 break. Also, you must allocate the interest between your business use and personal use of the car.

Home Equity Loans

If you take out a home equity loan to buy an automobile, even for personal use, you can take the interest as an itemized deduction. While you get a tax break, you're risking the loss of your home if you can't make the payments.

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