Can you write off gas on your taxes? Yes — if you're self-employed and the driving is for business. But you never deduct gas by itself. You either take the IRS's flat cents-per-mile rate, which already includes gas, or you deduct the business share of everything the car cost, gas receipts included.

Which route wins depends on your car and your miles, and a first-year choice can lock in for good.

Can you write off gas on your taxes?

Yes, if you're self-employed and the miles are business miles. Gas is a cost of operating your car for work, and the tax law lets you deduct that cost one of two ways: the standard mileage rate or the actual-expense method. IRS Publication 463 lays out both, and its own tip is to figure your deduction each way and take the larger one if you qualify for both.

The deduction lands on Schedule C, which means it reduces your self-employment profit — so it lowers both your income tax and your self-employment tax. (Our self-employment tax walkthrough was written for 1099 workers and shows exactly what Schedule SE charges before deductions like this one bring the number down.) More on making write-offs hold up is on our small business tax deductions hub.

This is the exact question working drivers ask. One Dasher put it this way on the TurboTax community:

"Since the company doesn't offer gas reimbursement, can I keep record of the gas I use and write it off with my taxes? Would my phone bill count for this too as I need data in order to work?"

— oracler, TurboTax Community, September 5, 2024

The gas answer is yes, with the method choice below. The phone answer is also yes in part — the business-use share of your phone and data plan is deductible too, and our 1099 write-offs guide, written for the same gig driver, covers that one.

How does the standard mileage rate cover gas in 2026?

For 2026, the standard mileage rate is 72.5 cents per business mile, per the IRS's annual announcement and Notice 2026-10 — up 2.5 cents from 2025. Gas is already inside that rate. If you take it, you do not deduct a single gas receipt on top.

The rate isn't just gas. Under Revenue Procedure 2019-46, §4.02, the per-mile figure stands in for all of your fixed and variable costs:

• Depreciation (or lease payments)
• Gasoline, including all fuel taxes
• Oil, maintenance, repairs, and tires
• Insurance
• License and registration fees

Publication 463 states the rule flatly: use the standard mileage rate for a year and you can't deduct your actual car expenses for that year — not depreciation, not maintenance, not gasoline. Deducting both is counting the same cost twice.

Two things do stack on top of the rate: business parking fees and tolls. Those are deductible separately under either method. And the rate applies the same to electric and hybrid vehicles as to gas and diesel ones. One footnote worth knowing: for 2026, 35 cents of every mile is treated as depreciation, which only matters years later if you sell the car — it reduces your basis, the cost figure any gain is measured against.

Fifteen thousand logged business miles in 2026 deducts 15,000 × $0.725 = $10,875, plus parking and tolls. No receipts required for the car itself — just the mileage log.

How do gas receipts work under the actual-expense method?

Gas receipts count under the actual-expense method, but never at 100%: you deduct only the business-use percentage, which is your business miles divided by your total miles. You add up everything the car cost for the year and deduct that percentage of it.

Publication 463's own example: you drive 20,000 miles in a year, 12,000 of them for business. You deduct 60% (12,000 ÷ 20,000) of the total cost of operating the car. The expense list includes gas, oil, repairs, tires, insurance, registration, garage rent, tolls, parking, and depreciation or lease payments.

Two rules catch people here:

• If your business use is 50% or less, you must depreciate the car straight-line over five years (an equal slice of its cost each year), and §179 expensing and bonus depreciation — the two ways to write a car off faster than its normal life — are off the table, even if your business use climbs above 50% later.
• The paperwork grows. The business share of gas, oil, repairs, insurance, and registration goes on Schedule C line 9, depreciation goes on line 13, and because the IRS classes a car as “listed property” — an asset it assumes gets personal use — claiming depreciation means filing Form 4562, Part V — which asks for your total business miles and, point-blank, whether you have evidence for the business use and whether that evidence is written.

That last question is the whole ballgame, and it comes up again below.

Which method wins — the standard mileage rate or actual expenses?

For most gig drivers in a paid-off, ordinary car, the standard rate wins — by $4,500 in the example below — but run both and take the larger deduction, which is the IRS's own advice. Actual expenses tend to win for a newer, costlier car, a gas-hungry vehicle, or a year with fewer business miles — but only if you kept every receipt and the log.

Here's the shape of it with two hypothetical drivers. The cost figures are illustrations, not quotes — plug in your own numbers:

Notes on the example: parking and tolls are left out because they stack on top under either method. Driver B's depreciation is simplified — at 50% business use, straight-line over five years is the only option, and the real calculation applies a first-year convention and annual dollar caps we haven't shown. The point stands: the same driver can get opposite answers depending on the car and the miles, which is why you run both. Our DoorDash tax guide, written for a first-year Dasher, runs this vehicle choice inside the full-year picture of what a driver owes.

Whichever method wins, the deduction comes off your Schedule C profit, so it lowers both income tax and self-employment tax. To see what your own number is worth, enter your projected vehicle deduction below and mark it as a self-employed business expense.

Do you have to pick the standard mileage rate in the first year?

Yes, for a car you own: use the standard mileage rate in the first year the car is available for business use, or you lose that option for that car for good. Start with actual expenses and claim accelerated depreciation, §179, or bonus depreciation in year one, and the standard rate is gone for that car permanently.

The mechanism lives in Revenue Procedure 2019-46, §4.05: using the standard rate is treated as electing the car out of MACRS, the accelerated depreciation system, and a car that has already had accelerated depreciation, §179, or bonus claimed on it can never come back to the rate. Publication 463 and the IRS's 2026 rate release state the plain version — choose the rate in year one, by the due date of that year's return, and you can't revoke it.

The trap is asymmetrical, and it matters:

• Start on the standard rate in year one, and you can switch to actual expenses in any later year (using straight-line depreciation for the car's remaining life). Both doors stay open.
• Start on actual expenses and claim MACRS depreciation, §179, or bonus depreciation in year one — the usual ways a car gets depreciated — and you've locked that car out of the standard rate for good, even if the rate would have won every year after.
• Leased car? The standard rate, if chosen, must be used for the entire lease period, including renewals.

My position for a first-year gig driver using a personal car they already own: take the standard rate in year one. It's usually the bigger deduction anyway, it needs the least paperwork, and it preserves your option to switch later if the car or the miles change.

Does driving to your work zone count, or is that commuting?

Commuting is never deductible. Publication 463 is blunt: you can't deduct the cost of driving between your home and your main or regular place of work, no matter how far it is, and even if you work during the trip. Slapping a delivery magnet on the door doesn't change a personal commute into a business one either.

For a gig driver, the workable line is the app. Miles driven with the app on — heading to a pickup, between orders, repositioning to a busier area — are business miles. The drive from your driveway to a starting zone with the app off is the gray area the commuting rule was built for. My position: turn the app on before the car leaves the driveway, log the trip's purpose, and never claim app-off miles. One exception worth knowing: if your home qualifies as your principal place of business, trips from home to other work locations can be deductible — but a driver who does all the work in the car generally can't show that.

Can W-2 employees write off gas?

No. If you drive your personal car for a W-2 job, you deduct nothing for it in 2026 — not gas, not mileage, not under either method. Unreimbursed employee travel expenses were miscellaneous itemized deductions, and §67(h) now disallows those permanently; the 2025 tax law removed the old 2025 sunset, and Notice 2026-10 confirms the standard mileage rate can't be used to claim them. Narrow exceptions exist for Armed Forces reservists, fee-basis government officials, and certain performing artists.

An employee's only real move is an employer reimbursement plan, which is a conversation with the employer, not a deduction on your return. The self-employed reader this post is for deducts on Schedule C instead — which is why the distinction between the two matters so much.

Do you need a mileage log to write off gas?

Yes — under either method you need a mileage log kept at or near the time of each trip, and on the actual method you also need every receipt. On the standard rate, the log is the whole substantiation for the car. On the actual method, you need the log plus every receipt, because the log is what produces the business-use percentage that prorates every gas fill-up, insurance premium, and repair bill.

The legal backbone is §274(d): no deduction for a vehicle without adequate records of the amount, the time and place, and the business purpose. The regulation, Treas. Reg. §1.274-5T, says the record must be made "at or near the time" — a contemporaneous log carries credibility that a year-end reconstruction from memory does not. Publication 463 accepts a weekly log as timely, and it warns that you can't deduct amounts you approximate or estimate.

Drivers ask about shortcuts. Another Dasher asked on the TurboTax community:

"Can we claim gas expenses when working for DoorDash on our taxes? And can it be down with only my bank statements or do I have to have receipts?"

— a Dasher posting anonymously, TurboTax Community, December 28, 2023

Bank statements prove that gas was bought. They don't prove it was bought for business. The log supplies the business-use percentage, and without it the receipts are just a pile of personal spending. Our mileage-tracking guide shows exactly what the log has to show, trip by trip, and what a year's odometer readings add to it.

What happens when your gas receipts don't match your mileage log?

The receipts lose. In one Tax Court case, Chappell v. Commissioner (a small-case summary opinion, so not precedent for anyone else), a tax preparer claimed $15,385 of vehicle expenses. She had what most "write off gas" searchers think is the dream file: receipts for fuel, insurance, repairs, and loan interest, plus a GPS mileage app that had tracked her trips for most of the year.

The court threw out the receipts route entirely. Her receipts showed two or three same-day gas purchases on at least ten days when her log showed only light driving. They showed a gas purchase in Kings Mill, Ohio, on a day the log placed her at a conference in Washington, D.C. Other people had used her debit and credit cards that year, so the receipts couldn't be tied to her business driving. And for the nearly three months before she started the app, she had no records at all — so no vehicle deduction for that period in any form.

What saved part of the deduction was the log itself. For the months the app had tracked, the court fell back to the standard mileage rate and allowed 11,598 business miles at that year's 57.5-cent rate — $6,669, against the $15,385 claimed — and added a negligence penalty for claiming costs without adequate substantiation. The lesson transfers directly: the log is what makes gas deductible under either method. It sets the business-use percentage that prorates every receipt, and when the receipts fail, it's the only thing left standing.

The same thing sank Craddock v. Commissioner (also a nonprecedential summary opinion): a taxpayer claimed $6,325 of fuel from highlighted bank statements on top of $14,710 of car expenses, with a mileage log that never separated business miles from his commute — and fuel purchases in one state on days the log showed trips in another. He lost all of it. Gas receipts counted twice prove nothing without the business-use split.

What else do drivers ask about writing off gas?

Not sure which method leaves more in your pocket this year? N&T Tax & Advisory Group helps gig drivers and other self-employed workers choose the right vehicle method, set up a mileage log that holds up, and file a Schedule C that captures every deductible mile — by phone or video, nationwide. Book a meeting with our team here.