🚗 Car Purchase Tax Deduction 2026
Calculate your 2026 tax deductions for a new car purchase: auto loan interest deduction, state sales tax deduction, vehicle depreciation, and business mileage. Includes income phase‑out rules from the One Big Beautiful Bill Act.
What Is the Car Purchase Tax Deduction 2026?
The Car Purchase Tax Deduction 2026 calculator helps you estimate the tax benefits of buying a new vehicle under the One Big Beautiful Bill Act (P.L. 119‑21). It covers four main deduction types:
- Auto Loan Interest Deduction: Up to $10,000 per year in interest on loans for new, U.S.-assembled personal vehicles, available through 2028.
- State Sales Tax Deduction: Deduct the state sales tax paid on your vehicle purchase if you itemize deductions.
- Vehicle Depreciation: Deduct the business-use portion of your vehicle's cost with 2026 IRS limits: $20,300 first year (with bonus), $12,300 (without bonus).
- Mileage Deduction: Deduct 72.5¢ per mile for business use, 20.5¢ for medical/moving, or 14¢ for charitable purposes.
How Does the Calculator Work?
Select your deduction type, enter your vehicle and financial details, and the calculator will:
Auto Loan Interest: Calculates total interest paid over the loan term, then applies the $10,000 cap and income phase‑out (starts at $100,000 MAGI for single filers, $200,000 for joint).
Sales Tax: Computes sales tax on the purchase price (minus trade‑in where applicable) and shows the deduction available if you itemize.
Depreciation: Applies 2026 IRS depreciation limits based on business use percentage and bonus depreciation election.
Mileage: Multiplies your business miles by the 2026 standard mileage rate, or calculates actual expenses if provided.
2026 Key Tax Rates & Limits
- Auto Loan Interest Cap: $10,000 per return
- MAGI Phase‑out: Starts at $100,000 (single) / $200,000 (joint); fully phased out at $150,000 / $250,000
- Depreciation (with bonus): Year 1: $20,300, Year 2: $19,800, Year 3: $11,900, Year 4+: $7,160
- Depreciation (without bonus): Year 1: $12,300, then same as above
- Business Mileage Rate: 72.5¢ per mile
- Medical/Moving Mileage Rate: 20.5¢ per mile
- Charitable Mileage Rate: 14¢ per mile
Why Use This Calculator?
- Up‑to‑Date for 2026: Reflects the latest IRS rules and the One Big Beautiful Bill Act.
- Four Deduction Types: All major car‑related tax deductions in one tool.
- Income Phase‑out: Automatically applies the MAGI phase‑out for the loan interest deduction.
- Detailed Breakdown: See exactly how each deduction is calculated.
- Free & Private: No registration, no data storage.
❓ Car Purchase Tax Deduction 2026 , FAQ
What is the new auto loan interest deduction for 2026?
The One Big Beautiful Bill Act allows taxpayers to deduct up to $10,000 per year in interest paid on loans for new, U.S.-assembled passenger vehicles. The deduction is available for tax years 2025‑2028 and can be claimed whether you itemize or take the standard deduction.
What vehicles qualify for the auto loan interest deduction?
Qualifying vehicles include new cars, minivans, vans, SUVs, pickup trucks, and motorcycles with a GVWR under 14,000 pounds, assembled in the U.S., and used primarily for personal purposes. Used vehicles do not qualify.
How does the income phase‑out work?
The deduction begins to phase out when your MAGI exceeds $100,000 (single filers) or $200,000 (joint filers). It is reduced by $200 for every $1,000 over the threshold and fully phases out at $150,000 (single) or $250,000 (joint).
Can I deduct the state sales tax I paid on my car?
Yes, but only if you itemize your deductions on Schedule A. The full sales tax amount paid on the vehicle purchase is deductible as part of your state and local tax (SALT) deduction.
What are the 2026 depreciation limits for passenger vehicles?
For vehicles placed in service in 2026 with bonus depreciation: $20,300 in Year 1, $19,800 in Year 2, $11,900 in Year 3, and $7,160 in subsequent years. Without bonus depreciation, Year 1 is $12,300.
What is the 2026 standard mileage rate for business?
The IRS 2026 standard mileage rate is 72.5 cents per mile for business use, up 2.5 cents from 2025. Medical and moving purposes are 20.5¢/mile, and charitable is 14¢/mile.
Can I claim both the mileage deduction and actual expenses?
No. You must choose either the standard mileage method or the actual expense method for a given vehicle each year. You cannot use both for the same vehicle in the same tax year.
Is the EV tax credit still available in 2026?
No. The federal EV tax credit (up to $7,500) was eliminated for vehicles acquired after September 30, 2025 by the One Big Beautiful Bill Act.
Do I need to include my VIN to claim the deduction?
Yes. For the auto loan interest deduction, you must include the Vehicle Identification Number (VIN) on Schedule 1‑A of Form 1040. Lenders will provide Form 1098‑VLI showing the interest paid.
Can I deduct car loan interest for a business vehicle?
If the vehicle is used 50% or more for business, the interest is fully deductible as a business expense to the extent of business use. If personal use is more than 50%, the personal portion may qualify for the $10,000 personal deduction.