$DeductMyRide

Car loan interest deduction calculator

Enter your loan details to estimate your yearly deduction (capped at $10,000 by law) and — more importantly — your actual tax savings. A $10,000 deduction does not mean $10,000 back; your marginal tax bracket decides the savings.

Phase-out starts at $100,000 for your filing status.

The bracket your last dollar of income falls in. Not sure? 22% is a common middle-class figure — ask your CPA.

Key insight: a deduction is not a refund

A $0 deduction at a 22% marginal rate saves you $0 in tax — not $0. The deduction lowers your taxable income; your bracket decides the savings.

Disclaimer: Estimates only — not tax advice. Tax rules are complex and change. Confirm your situation with a qualified CPA or tax professional before filing.

Ready to claim it on your return?

Found out you qualify? These tax-filing services can help you claim the deduction correctly on your return.

TurboTax

Guided filing that walks you through new deductions step by step.

File with TurboTax

FreeTaxUSA

Free federal filing — a budget-friendly way to claim your deduction.

File with FreeTaxUSA

eFile.com

Online tax filing with support for new 2025+ tax law changes.

File with eFile.com

Affiliate links — we may earn a commission if you file through these links, at no extra cost to you.