- Taxpayers must file 2025 returns by April 15, 2026 to claim the new car loan interest deduction.
- Eligible claims require Schedule 1-A (Form 1040) for vehicles with original use starting after 2024.
- The deduction applies to new, U.S.-assembled vehicles under 14,000 pounds used for personal purposes.
(UNITED STATES) — April 15, 2026, is the main federal filing deadline for taxpayers claiming the new Car Loan Interest Deduction on 2025 returns, and missing it can delay or complicate the claim.
The 2026 filing season is the first time many taxpayers will see Schedule 1‑A (Form 1040), the new IRS schedule used to claim the No Tax on Car Loan Interest deduction for tax year 2025. The IRS released the schedule and instructions on March 2, 2026, and it also covers other OBBBA deductions. That makes this form important even for filers with more than one new adjustment.
The deduction was enacted in 2025, but the rules are still being built out. Treasury and the IRS issued proposed regulations, not final regulations, and gave lenders transition relief for calendar year 2025. For many borrowers, that means a lender statement showing total 2025 interest will be the main starting document this season.
📅 Deadline Alert: File your 2025 federal return by April 15, 2026. If you need more time, request an extension by that date. An extension gives more time to file, not more time to pay.
Deadline summary for the 2026 filing season
| Tax event | Deadline | Who it affects | Extension available |
|---|---|---|---|
| Lender furnishes 2025 borrower interest statement | January 31, 2026 | Borrowers with potentially eligible 2025 vehicle loans | No filing extension for borrower use |
| Main federal return due for 2025 tax year | April 15, 2026 | Individual filers claiming the deduction | Yes, to October 15, 2026 |
| Automatic extension filing deadline | October 15, 2026 | Taxpayers who timely requested extension | Filing only |
| FBAR due date, if required | April 15, 2026 | U.S. persons with foreign accounts over $10,000 aggregate | Automatic to October 15, 2026 |
Taxpayers in IRS disaster areas may receive postponed deadlines. Check irs.gov/newsroom for current relief notices.
What’s new for this filing season
The IRS announced Schedule 1‑A (Form 1040) in IR-2026-28. This is the filing mechanism for the new deduction on 2025 returns filed in 2026. That timing matters. The law applies beginning with tax year 2025, but the claim happens during the 2026 filing season.
Treasury and the IRS also released proposed regulations, identified as REG-113515-25. Those rules set out definitions, examples, and reporting standards. Public comments closed in early February, and a hearing date followed later that month. As of March 28, 2026, final regulations were still pending.
Law, scope, and effective dates
The deduction comes from Public Law 119-21, often called the One Big Beautiful Bill Act. It applies for a temporary period only: tax years 2025 through 2028.
The main code references matter because they control deduction treatment, taxable income computation, and lender reporting. The law ties the deduction to IRC section 163(h)(4), section 63(b)(7), and the new reporting rule in section 6050AA.
For most borrowers, the proposed regulations will answer practical questions. For edge cases, they matter even more. That includes refinancing, mixed personal and business use, and financing that includes nonqualifying amounts.
IRS background for immigrants and visa holders is in Publication 519, U.S. Tax Guide for Aliens, at irs.gov/pub/irs-pdf/p519.pdf.
Who qualifies and what vehicles qualify
The deduction is for qualified passenger vehicle loan interest. that means interest on a specified passenger vehicle loan incurred after December 31, 2024.
The loan generally must:
- Be secured by a first lien
- Cover an applicable passenger vehicle
- Be for personal use
- Be taken by the original obligor
There is a narrow exception for a successor obligor after the original borrower’s death.
The vehicle generally must:
- Be a new vehicle, because original use must start with the taxpayer
- Have final assembly in the United States
- Be designed mainly for public roads
- Fit an eligible class, such as a car, SUV, pickup, van, minivan, or motorcycle
- Be treated as a motor vehicle under Title II of the Clean Air Act
- Have a gross vehicle weight rating under 14,000 pounds
Refinancing does not automatically end eligibility. But only the balance tied to the original qualifying loan can continue to count. Any cash-out amount does not qualify.
Mixed-purpose financing can also reduce the deduction. If the new loan includes negative equity from an old vehicle, that part is not eligible. Down payments are generally applied first against nonqualifying amounts.
⚠️ Warning: A qualifying vehicle alone does not guarantee the deduction. The loan structure must also meet the rule.
Filing mechanics and lender reporting
For tax year 2025, taxpayers claim the deduction on Schedule 1‑A (Form 1040). The IRS forms portal is irs.gov/forms-pubs.
Lender reporting works differently during the transition year. For calendar year 2025, lenders do not yet file the full new information return with the IRS. Instead, they must give borrowers a statement showing total 2025 interest by January 31, 2026.
After the transition period, lenders will use Form 1098-VLI, Vehicle Loan Interest Statement.
This creates an important difference between claiming and proving the deduction. You may claim it on the return, but you still need records to support it. Keep:
- Your lender’s 2025 interest statement
- Retail installment contract or loan agreement
- Purchase documents
- VIN and vehicle records
- Any refinance paperwork
VIN checks and special issues for immigrants
The VIN helps confirm final U.S. assembly and vehicle identity. If the facts are unclear, compare your sales papers and loan documents to VIN-based records, including the NHTSA VIN decoder.
For immigrants and visa holders, your tax residency still matters. A green card holder or substantial presence resident usually files Form 1040 and should review Publication 519. Dual-status and nonresident filers should get advice before claiming new deductions tied to Form 1040 schedules.
What to do now
Before April 15, 2026, gather your lender statement, loan papers, VIN records, and purchase documents. Review whether the loan began after December 31, 2024, whether the vehicle was new, and whether any refinance or negative equity limits apply. If your facts are borderline, especially with mixed use or cash-out refinancing, get professional help before filing.
💡 Tax Tip: If you cannot finish by April 15, file for an extension on time and pay any expected tax by that date to limit penalties and interest.
⚠️ Disclaimer: This article is for informational purposes only and does not constitute tax, legal, or financial advice. Tax situations vary based on individual circumstances. Consult a qualified tax professional or CPA for guidance specific to your situation.
