Something that may fly under the radar in the sweeping “One Big Beautiful Bill” signed into law in July 2025 is a new and potentially useful tax provision: a deduction for interest paid on auto loans.
Key Details of the Auto Loan Interest Deduction
- Valid for tax years 2025–2028: Only interest on new auto loans issued (or interest paid) during this period qualifies
- Only U.S. assembled vehicles eligible: The auto’s final assembly must occur in the United States. Most imported models don’t qualify.
- Cap of $10,000 per year: You can deduct up to this amount of auto loan interest annually
- Income phase-out applies: The deduction phases out between MAGI of $100K–$150K (single) and $200K–$250K (joint filers)
- No itemizing needed: This is an above-the-line deduction, so it works even if you take the standard deduction
How Much Could You Save?
If you pay $2,800 in qualifying auto loan interest each year and you’re in the 22 percent tax bracket, that’s about $616 in annual savings. Over the four years this deduction is available (2025 through 2028), that could add up to nearly $2,500 in tax saving.
Should You Keep the Loan or Pay It Off?
While the new deduction is a nice bonus, it likely does not justify keeping a auto loan you would otherwise pay off. Even with a low interest rate, the actual tax savings are modest.
If you have the means to pay off your loan early or put that money toward higher-interest debt or savings goals, that may still be the better financial move. In other words, this deduction is worth using if you already have a qualifying loan, but it is not a reason to take on extra debt.
Final Thoughts
This auto loan interest deduction is one of several new tax provisions aimed at middle-income households and standard deduction filers. It is a helpful perk to factor into your overall tax picture, but not a reason to change your borrowing habits.
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