If you use your car for work and you’re self-employed, you can write it off; if you’re a W-2 employee, generally you can’t. Writing off a car used for work means deducting the business-use share of what the vehicle costs you, either at a flat per-mile rate (72.5 cents for 2026) or by tracking every actual expense.1Internal Revenue Service. 2026 Standard Mileage Rates How much you save turns on your employment status, the kind of driving you do, and the records you keep.
Who Can Deduct a Car Used for Work
Sole proprietors, independent contractors, freelancers, and gig workers can deduct car costs tied to their business. The deduction goes on Schedule C, so it reduces the income subject to both income tax and self-employment tax.2Internal Revenue Service. Heres the 411 on Who Can Deduct Car Expenses on Their Tax Returns If the same car covers work trips and personal errands, only the business share is deductible.
W-2 employees can’t deduct unreimbursed vehicle expenses on their federal return. The Tax Cuts and Jobs Act removed that deduction starting in 2018, and the One, Big, Beautiful Bill enacted in 2025 made the removal permanent.3Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill Even if your employer requires you to drive your own car, the federal code offers no write-off. Your best move is asking for a reimbursement or a mileage allowance from your employer.
Three narrow employee categories keep a separate above-the-line deduction that neither law touched: Armed Forces reservists traveling more than 100 miles from home for reserve duty, qualified performing artists who meet specific income and employer tests, and fee-basis state or local government officials.4Office of the Law Revision Counsel. 26 U.S. Code 62 – Adjusted Gross Income Defined These filers use Form 2106 and report the result on Schedule 1.5Internal Revenue Service. Topic No. 511, Business Travel Expenses
What Counts as Business Driving
A trip is deductible when it’s ordinary and necessary for your work.6Office of the Law Revision Counsel. 26 U.S.C. 162 – Trade or Business Expenses Driving from your office to a client, between job sites, or to pick up supplies for a project all qualify.
Commuting doesn’t. The drive between home and your regular workplace is personal, no matter the distance. Driving from home to a temporary work location where you reasonably expect to work for a year or less does count as business travel.7Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses If your expected stay later stretches past a year, the trips stop being deductible at the point your expectation changes.5Internal Revenue Service. Topic No. 511, Business Travel Expenses
Two Ways to Calculate the Write-Off
The IRS gives you two methods, and you generally take whichever produces the bigger deduction. The catch is what happens after year one.
Standard Mileage Rate
Multiply your business miles by the annual rate. For 2026, that’s 72.5 cents per mile.1Internal Revenue Service. 2026 Standard Mileage Rates The rate already covers gas, oil, insurance, maintenance, repairs, and depreciation, so you can’t stack those costs on top of it. You can still add business parking fees and tolls; parking at your regular workplace is a nondeductible commuting cost.7Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses
Actual Expense Method
Track every dollar you spend on the car during the year and deduct the business-use percentage (business miles divided by total miles). Deductible costs include:
- Gas and oil
- Repairs, tires, and maintenance
- Insurance premiums
- Registration fees
- Lease payments if you’re leasing
- Depreciation if you own
- Parking and tolls on business trips
Actual expenses usually win out when the car is expensive, insurance is high, or you had a big repair year.
Locking In a Method
If you want the option to use the standard mileage rate at all, you have to choose it in the first year the vehicle is in service for business. You can switch to actual expenses in later years. Going the other direction is limited: if you claimed MACRS (accelerated) depreciation under actual expenses, you can’t move to the standard mileage rate for that vehicle.8Internal Revenue Service. Topic No. 510, Business Use of Car If you started with the standard rate and then switch, you must use straight-line depreciation for the rest of the car’s useful life.7Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses
Buying a Vehicle for the Business
Buy a car and put it to work, and you can often deduct a large share of the purchase price up front through Section 179 expensing and bonus depreciation. What you can claim depends heavily on the vehicle’s weight.
Heavy Vehicles (Over 6,000 Pounds GVWR)
Vehicles with a gross vehicle weight rating above 6,000 pounds sidestep the annual depreciation caps that pin down lighter cars. For 2026, heavy SUVs between 6,001 and 14,000 pounds can take up to $32,000 of Section 179 expensing, with any remainder eligible for bonus depreciation. Pickups with a bed at least six feet long and vehicles over 14,000 pounds don’t hit the SUV cap and may qualify for the full 2026 Section 179 limit of $2,560,000.9Internal Revenue Service. Revenue Procedure 2025-32, Section 179 Inflation Adjustments
The One, Big, Beautiful Bill also brought 100% bonus depreciation back permanently for qualifying property acquired after January 19, 2025.10Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One, Big, Beautiful Bill For a heavy vehicle used entirely for business, the two provisions together can zero out the purchase price in the year you buy.
Passenger Cars (6,000 Pounds or Less)
Lighter cars run into annual depreciation limits under Section 280F, no matter which accelerated tool you use.11Office of the Law Revision Counsel. 26 U.S. Code 280F – Limitation on Depreciation for Luxury Automobiles For cars placed in service in 2025 with bonus depreciation, the caps are $20,200 in year one, $19,600 in year two, $11,800 in year three, and $7,060 each year after. Without bonus depreciation, the year-one cap drops to $12,200.12Internal Revenue Service. Revenue Procedure 2025-16, Depreciation Limitations for Passenger Automobiles The 2026 numbers will be modestly higher; the IRS releases them in a revenue procedure each year. Any cost above the annual cap carries forward and comes off in later years at the “each year after” rate until you’ve fully recovered your business basis.
The 50% Business Use Rule
Section 179 and bonus depreciation both require you to use the vehicle for business more than 50% of the time. If business use falls to 50% or less in a later year, the IRS makes you recapture the excess depreciation, adding it back to your income that year.13Internal Revenue Service. About Form 4797, Sales of Business Property From that point you switch to straight-line for the rest of the recovery period. Track your business-use share every year so a bad year doesn’t produce a surprise bill.
If You Lease Instead of Buying
For a leased car, you deduct the business share of your lease payments under the actual expense method. For higher-value leases, the IRS makes you reduce the deduction by a small “income inclusion” amount so leasing doesn’t quietly outrun the purchase-side caps; for vehicles first leased in 2025, that adjustment kicked in above a fair market value of $62,000. You can use the standard mileage rate on a leased car only if you pick it in the first year of the lease and stick with it for the whole lease.
What Happens When You Sell the Car
Selling a car you’ve been depreciating triggers depreciation recapture. Under Section 1245, any gain on the sale, up to the total depreciation you claimed, is taxed at your ordinary income rate rather than the lower capital gains rate.14Office of the Law Revision Counsel. 26 U.S. Code 1245 – Gain From Dispositions of Certain Depreciable Property
Say you bought a car for $40,000, claimed $15,000 in depreciation, and later sold it for $30,000. Your adjusted basis is $25,000, so your $5,000 gain is fully ordinary income because it sits within the depreciation you’d already deducted. If the gain runs past the depreciation you claimed, the excess is generally capital gain. Report the sale on Form 4797.13Internal Revenue Service. About Form 4797, Sales of Business Property
Recapture reaches standard-mileage users too. The IRS treats part of each year’s rate as depreciation (35 cents per mile for 2026), and that deemed depreciation is what recapture hits at sale.1Internal Revenue Service. 2026 Standard Mileage Rates
Records the IRS Expects
Keep a written log of every business trip you plan to deduct: date, destination, business purpose, and start and end odometer readings. A mileage app is fine as long as it captures the same details. Without a contemporaneous log, the IRS can throw out your entire vehicle deduction on audit.
If you use actual expenses, hold onto receipts for fuel, repairs, insurance, and everything else you’re claiming, plus a record of total miles for the year so you can calculate the business-use percentage. Keep these records for at least three years after filing.
Penalties for a deduction you can’t back up depend on the facts. A substantial understatement, generally when your tax is understated by the greater of 10% or $5,000, brings a 20% accuracy-related penalty on the underpayment.15Office of the Law Revision Counsel. 26 U.S.C. 6662 – Imposition of Accuracy-Related Penalty on Underpayments If the IRS finds intentional fraud, the penalty rises to 75% of the underpaid portion.16Office of the Law Revision Counsel. 26 U.S. Code 6663 – Imposition of Fraud Penalty
Where the Deduction Goes on Your Return
- Sole proprietors report vehicle expenses on Schedule C (Form 1040). Part IV asks for the date placed in service, business miles, commuting miles, and other personal miles; the deduction lands on line 9. If you’re claiming depreciation under actual expenses, you’ll also file Form 4562.17Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss From Business (Sole Proprietorship)
- Reservists, qualified performing artists, and fee-basis officials compute the deduction on Form 2106 and carry it to Schedule 1, line 12.
- Sale of a depreciated business vehicle goes on Form 4797.13Internal Revenue Service. About Form 4797, Sales of Business Property
Keep a complete copy of what you file, including the mileage log and receipts, in case the IRS asks for support later.