Schedule1ADesk / 2026 Tax & Payroll Guides / 2026 GMC Sierra 1500 Auto Loan Interest Tax Deduction: U.S. Assembly VIN Check (Form 1098-VLI)
2026 GMC Sierra 1500 Auto Loan Interest Tax Deduction: U.S. Assembly VIN Check (Form 1098-VLI)
Does the 2026 GMC Sierra 1500 qualify for the $10,000 auto loan interest tax deduction?
For the 2026 IRS Schedule 1-A (Part IV) $10,000 auto loan interest deduction, the GMC Sierra 1500 status is: SPLIT ASSEMBLY (Verify VIN Starts with 1GT, Not 3GT). Assembly plant(s): Fort Wayne, IN (USA) vs. Silao, Mexico. Required VIN prefix rule: 1GT = Eligible (USA) | 3GT = Ineligible (Mexico). Verify your exact 17-digit VIN before claiming Form 1098-VLI interest.
Under Public Law 119-21 (IRS Schedule 1-A, Part IV), buyers of a brand-new GMC Sierra 1500 financed for personal use can deduct up to $10,000 per year in qualified vehicle loan interest (reported on lender Form 1098-VLI) only if that specific vehicle underwent final assembly in the United States and its 17-character VIN is entered on the tax return.
Verify Your GMC Sierra 1500 17-Digit VIN & Download Form 1098-VLI Certificate PDF
2026 Form 1098-VLI & Schedule 1-A Eligibility Matrix: GMC Sierra 1500
| Qualification Factor | GMC Sierra 1500 Specification |
|---|---|
| 2026 Schedule 1-A Part IV Status | SPLIT ASSEMBLY (Verify VIN Starts with 1GT, Not 3GT) |
| Final Assembly Plant Location(s) | Fort Wayne, IN (USA) vs. Silao, Mexico |
| VIN Prefix (WMI) Verification Rule | 1GT = Eligible (USA) | 3GT = Ineligible (Mexico) (1st character 1, 4, 5, or 7 = USA) |
| Sample VIN for Decoder Testing | 1GTUUEED8TZ104921 |
| Maximum Annual Interest Deduction | Up to $10,000/year (Available to both Standard Deduction and Itemizing filers) |
| MAGI Phase-Out Threshold | $100,000 Single / $200,000 Married Filing Jointly ($200 reduction per $1,000 over) |
Frequently Asked Questions
Does the GMC Sierra 1500 qualify for the 2026 $10,000 car loan interest tax deduction?
GMC Sierra 1500 eligibility is: SPLIT ASSEMBLY (Verify VIN Starts with 1GT, Not 3GT) (Fort Wayne, IN (USA) vs. Silao, Mexico). Always check the first character of your 17-digit VIN (1GT = Eligible (USA) | 3GT = Ineligible (Mexico)): a 1, 4, 5, or 7 confirms United States final assembly.
Do leased or used GMC Sierra 1500 vehicles qualify for Form 1098-VLI?
No. Only brand-new vehicles purchased with a first-lien personal-use auto loan originated after December 31, 2024 qualify for the Schedule 1-A Part IV deduction.