Free Tax Tool

Heavy SUV Tax Deduction Calculator

Estimate your 2026 federal tax savings from buying a vehicle over 6,000 lbs GVWR under 100% bonus depreciation, then compare it against the standard mileage method to see whether the weight threshold actually pays off. Want the full list of qualifying vehicles? Read our guide to SUVs over 6,000 lbs that qualify.
Vehicle & income details
Vehicle purchase price $0
$
$0$100k$200k$400k+
Business use 80%
0%50%100%
Filing status
Taxable income $0
$
$0$250k$500k$1M+

After all deductions including the standard deduction, but before this vehicle purchase — roughly Form 1040 line 15 without the vehicle write-off.

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Mileage rate vs. actual expenses

The standard mileage rate (72.5¢/mile) is all-inclusive — it bundles depreciation, fuel, insurance, maintenance, and registration. If you elect actual expenses instead, you deduct those costs separately. Electing any form of depreciation permanently forfeits the mileage method for that vehicle.

Mileage & operating costs
Annual business miles 0
015k30k50k+
Annual vehicle operating costs Optional $0
$
$0$7,500$15k$30k+

Fuel, insurance, maintenance, and registration — total annual cost. The business-use portion is deductible under actual expenses but is already bundled into the 72.5¢ mileage rate. Leaving this at $0 may make the mileage method look more favorable than it actually is.

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