Every self-employed driver, gig worker, and road-warrior consultant faces the same fork: deduct the IRS standard mileage rate (72.5¢ a mile through June 2026, 76¢ after) or add up actual car expenses and claim the business share. On identical driving, the two methods can differ by thousands of dollars, and the choice you make the first year you put a car in service can lock you in for as long as you own it. Here's how each method works, when each wins, and the records the IRS expects either way.
Multiply business miles by the IRS rate for the period you drove them. The rate is designed to cover everything the car costs you: gas and gasoline taxes, oil, maintenance, repairs, tires, insurance, registration fees, and depreciation or lease payments. You don't need receipts for any of that, just the miles. The 2026 rate is unusual: IR-2026-29 raised it mid-year from 72.5¢ to 76¢ effective July 1, only the second mid-year business increase in modern history. So a 2026 return prices January-through-June miles at 72.5¢ and the rest at 76¢.
Add up what the car really cost to run for the year, then claim the percentage of that total equal to your business-use share. If you drove 12,000 business miles out of 18,000 total, your business-use percentage is 66.7%, and 66.7% of your gas, repairs, insurance, depreciation, registration, and loan interest becomes deductible. Business parking and tolls are added at 100% on top, under either method.
The actual method lives or dies on that percentage. A delivery driver whose odometer is 90% work miles gets to deduct 90% of a genuinely expensive car. A real estate agent with a $70,000 SUV who drives it to showings twice a week might have a business percentage in the teens, making actual a poor trade for the standard rate.
| Cost | Standard rate | Actual method |
|---|---|---|
| Gas, oil, maintenance, tires | Built in | × business % |
| Insurance | Built in | × business % |
| Depreciation / lease payments | Built in | × business % (IRS caps apply) |
| Registration and fees | Built in | × business % |
| Loan interest (self-employed) | Not included | × business % |
| Parking and tolls | Separate deduction | Separate deduction |
A consultant logs 12,000 business miles in 2026, half in each half of the year, on a car that runs 18,000 total miles. Standard pays 6,000 × $0.725 + 6,000 × $0.76 = $8,910. Her actual costs come to $9,600 ($3,600 gas, $1,200 maintenance, $1,800 insurance, $2,400 depreciation, $300 registration, $300 loan interest); 66.7% of that is $6,400, plus $420 of tolls = $6,820. Standard wins by $2,090.
Now the mirror image: a contractor buys a new $58,000 truck, uses it 85% for business, and logs only 4,000 business miles. Standard pays about $2,970, while 85% of a $16,000 first-year cost stack (loan interest, insurance, depreciation, fuel) can clear $13,000. Same tax code, opposite answer, and why running both methods before filing is worth ten minutes. The standard vs actual mileage calculator does exactly that with your own numbers.
Business miles, total miles, and your real cost stack in; both deductions, the winner, and the per-mile economics out.
Open the Standard vs Actual Mileage Calculator →Both methods require a contemporaneous log: date, destination, business purpose, miles. For actual, add receipts for every expense line and a defensible business-use percentage, which the IRS typically expects from total odometer readings at the start and end of the year. Apps that track trips automatically satisfy the log requirement and make the half-year split for 2026's rate change painless. Reconstructing a year of miles from Google Maps history during an audit is technically possible and practically miserable; don't.
Gig workers take note: mileage between delivery pickups is generally deductible as business mileage, while the drive from home to your first pickup of the day starts the clock under the same rules that govern commuting. Platform summaries of your on-mileage help but usually undercount, because they miss the miles between drop-offs when no order is active. Pair this with the self-employment tax calculator to see how the bigger deduction flows through to SE tax, and the quarterly tax calculator to set payments that keep you out of underpayment penalties.
No, but the terms get confused. If an employer or platform reimburses your miles (many use the IRS rate as the ceiling), that's the mileage reimbursement calculation, money back today, no tax return involved. The standard-versus-actual choice is purely about deducting unreimbursed business use on your own return. If you're reimbursed at less than the IRS rate and you're self-employed, the difference is part of your deduction story too.
72.5 cents per mile for January 1 through June 30, 2026, and 76 cents per mile from July 1 through December 31 (IR-2026-29). The split means a full-year mileage log gets valued in two pieces: miles through June at 72.5 cents, miles from July at 76 cents.
It depends on the car and the driving mix. Standard tends to win for high business mileage on a cheap, paid-off vehicle; actual tends to win for new or expensive vehicles with low mileage and a high business-use percentage. The gap on identical driving often exceeds $2,000, so it's worth running both.
Yes, but only if you claimed the standard rate the first year the vehicle was used for business. Using actual expenses with depreciation in year one locks you into actual for that vehicle forever. On a lease, choosing standard mileage means staying with it for the whole lease term.
Yes. The rate covers gas and gasoline taxes, oil, maintenance, repairs, tires, insurance, registration and license fees, and depreciation or lease payments. Parking and tolls are on top of the rate, and loan interest is only deductible under the actual method, prorated by business use.