About the Actual vs Standard Mileage Calculator
This calculator compares the two ways the IRS lets you deduct business use of a car: the standard mileage rate and the actual expense method. Enter your business miles, total miles and what you spent on the vehicle during the year, and it shows the deduction under each method, which one is larger and roughly how much tax the difference is worth.
It uses the 2026 business rates: 72.5 cents per mile for miles driven from 1 January to 30 June 2026 (IRS Notice 2026-10) and 76 cents per mile from 1 July 2026 (IRS Announcement 2026-11), so split your miles between the two halves of the year. Under the actual method your business-use percentage (business miles ÷ total miles) is applied to gas, insurance, repairs, registration, depreciation or lease payments and loan interest. Business parking and tolls are added under both methods.
It is meant for self-employed people, freelancers, gig drivers and small-business owners who file Schedule C or F. Since the One Big Beautiful Bill Act made the suspension permanent, employees cannot deduct unreimbursed car expenses on their federal return, so W-2 workers should use it only to check what an employer reimbursement would cover. Remember the first-year rule: if you want the standard rate for a car you own, you must use it in the first year the car is used for business.
How to use the actual vs standard mileage calculator
- 1Enter business miles for January–June and July–December 2026 from your mileage log.
- 2Enter the total miles the car was driven in the year, including personal use.
- 3Add what you spent on gas, insurance, repairs, registration, depreciation or lease payments and loan interest.
- 4Enter business parking and tolls, which count under both methods.
- 5Set your combined tax rate and compare the two deductions.
Formula and method
The standard mileage method multiplies business miles by the IRS rate for the period they were driven. For 2026 the IRS set 72.5 cents per mile for the first half of the year and raised it to 76 cents for miles from 1 July 2026. The rate already covers gas, insurance, repairs, registration and depreciation, so those costs cannot be added; business parking, tolls and (for self-employed people) the business share of car-loan interest can be.
The actual expense method adds up everything the car cost you during the year and multiplies it by your business-use percentage. Depreciation is often the largest piece and depends on the car’s cost, the year placed in service and any Section 179 or bonus depreciation you claim, so enter the figure from your depreciation schedule (or lease payments for a leased car). The calculator does not apply the luxury-auto depreciation caps or lease inclusion amounts for you.
- B%
- Business-use percentage = business miles ÷ total miles
- $0.725 / $0.76
- 2026 business standard mileage rates (Jan–Jun / Jul–Dec)
- Depreciation
- Your depreciation deduction (or lease payments) for the year
Worked examples
Freelancer driving 12,000 business miles
6,000 miles × $0.725 plus 6,000 miles × $0.76 is $8,910; adding $400 of parking and two-thirds of the $1,000 loan interest gives $9,976.67. Actual costs of $10,600 × 66.7% business use plus parking come to $7,466.67, so the standard rate wins by $2,510 — about $628 of tax at 25%.
Expensive truck with heavy depreciation
With 80% business use, actual costs of $22,900 give an $18,320 deduction. The standard rate gives $3,625 + $3,800 + 80% of $2,500 interest = $9,425, so actual expenses produce $8,895 more deduction, worth about $2,669 at a 30% rate.
Second-half-year driver with an economical car
All 8,000 business miles were driven after 1 July, so they earn 76¢ each: $6,080 plus $250 parking is $6,330. Actual costs of $4,850 × 80% plus parking are $4,130, so the standard rate is $2,200 better.
Frequently asked questions
What is the IRS standard mileage rate for 2026?+
The business rate is 72.5 cents per mile for miles driven from 1 January to 30 June 2026 and 76 cents per mile from 1 July 2026, after the IRS raised it mid-year in Announcement 2026-11. The medical and military moving rate is 20.5 cents (23.5 cents from July) and the charitable rate stays at 14 cents.
Can I switch between standard mileage and actual expenses?+
For a car you own, you must choose the standard rate in the first year you use it for business; after that you can switch to actual expenses in a later year, but you must use straight-line depreciation. If you start with actual expenses (MACRS or Section 179), you can never switch that car to the standard rate. A leased car must use the same method for the whole lease.
Which method usually gives a bigger deduction?+
The standard rate tends to win for cheap, fuel-efficient cars driven many business miles. Actual expenses often win for expensive vehicles, heavy SUVs and trucks with large depreciation, cars with high insurance or repair costs, or when total annual mileage is low but the business share is high.
Can employees deduct mileage in 2026?+
Generally no. The One Big Beautiful Bill Act made permanent the elimination of miscellaneous itemized deductions, so W-2 employees cannot deduct unreimbursed car expenses on their federal return. Exceptions include Armed Forces reservists, qualifying performing artists, fee-basis government officials and certain educator expenses.
What records do I need for a vehicle deduction?+
Keep a contemporaneous mileage log showing the date, destination, business purpose and miles for each trip, plus odometer readings at the start and end of the year. For the actual method you also need receipts for gas, repairs, insurance, registration and loan interest, and your depreciation records.
Why does the standard rate reduce my car’s basis?+
Part of each standard mile is treated as depreciation — 35 cents per mile for 2026. That amount lowers the car’s adjusted basis, which affects gain or loss when you sell it and the depreciation you can take if you later switch to actual expenses.
Tax results are estimates based on published rules and simplified assumptions. They are not tax advice — check official guidance or a tax professional for your situation.
Sources
- IRS — Standard mileage rates
- IRS Notice 2026-10 — 2026 standard mileage rates and basis reduction amount
- IRS — 2026 business standard mileage rate set at 72.5 cents (IR-2025-128)
- Internal Revenue Bulletin 2026-29 (Announcement 2026-11: 76 cents from July 1, 2026)
- IRS Publication 463 — Travel, Gift, and Car Expenses