Part of the Deductions guide.
The main guide covers the 2026 mileage rate change mid-year. This is the decision that comes before that: which of the two vehicle deduction methods to use in the first place, and the one rule that makes your first-year choice more permanent than most freelancers realize.
The Two Methods
Standard mileage rate — multiply your business miles by the IRS rate (72.5 cents per mile January–June 2026, 76 cents July–December 2026). This single number is deemed to cover fuel, depreciation, insurance, repairs, and maintenance combined. Minimal recordkeeping: just a mileage log.
Actual expense method — track every real cost of operating the vehicle (fuel, insurance, repairs, maintenance, lease payments or depreciation, registration) and deduct the business-use percentage of the total. More recordkeeping, but potentially a larger deduction — especially for an expensive vehicle or a year with major repairs.
The business-use percentage isn’t optional or approximate — it’s a hard cap on the deduction, straight from your mileage log. If your total vehicle costs for the year run $10,000, but your log shows the car was used 60% for business and 40% personal, your deduction is strictly $6,000 — not $10,000, no matter how legitimate the underlying expenses were. The mileage log isn’t just backup documentation for this method; it’s the number that directly caps what you can claim.
The Rule That Locks In Your First-Year Choice
This is the detail that catches people off guard: if you use the actual expense method in the first year a vehicle is placed in service, you cannot switch to the standard mileage rate for that vehicle, ever. The restriction only runs one direction — start with standard mileage, and you retain the flexibility to switch to actual expenses in a later year if it becomes more favorable, but with a catch: you’re forced into slow, straight-line depreciation for the vehicle’s remaining useful life, not the accelerated Section 179 or bonus depreciation options covered in this pillar’s depreciation guide. Start with actual expenses from day one, and you’re locked into that method for that vehicle’s entire life in your business — but you retain access to the full range of depreciation options, including the accelerated ones, since you never took the standard rate’s built-in depreciation allowance in the first place.
This makes the first year you use a vehicle for business the single most consequential filing decision related to that vehicle. If you’re not sure which will produce a better long-term result, starting with standard mileage preserves your options; starting with actual expenses does not.
When Each Method Actually Wins
Standard mileage tends to win when: you drive a high number of business miles in a moderately priced vehicle. The flat rate is generous enough per mile that high mileage alone can outperform actual costs, especially for a car that isn’t expensive to insure or maintain.
Actual expenses tend to win when: you have an expensive vehicle, a year with major repair costs, high insurance premiums, or you simply don’t drive enough miles for the flat rate to add up to much. A specialty or luxury vehicle used for client meetings is a common case where actual expenses pull ahead.
There’s no shortcut here — the only reliable way to know is to calculate both for your actual numbers before filing, which is exactly why the first-year decision matters so much: a wrong guess isn’t just a wasted calculation, it can be a permanently locked-in wrong choice.
Two Rules Most People Don’t Know
The five-or-more-vehicle rule. If your business operates five or more vehicles at the same time, the standard mileage rate generally isn’t available at all — the IRS treats this as a fleet and requires actual expense tracking, regardless of what you’d prefer.
The leased-vehicle rule. If you lease rather than own, and you choose the standard mileage rate in the first year, you must continue using it for the entire remaining lease term — you can’t switch to actual expenses partway through a lease the way you potentially could with an owned vehicle.
What to Actually Track, Regardless of Method
Even if you pick the simpler standard mileage method, a mileage log is still required — date, destination, business purpose, and miles driven for each trip. If you’re leaning toward actual expenses, keep the mileage log plus every receipt: fuel, insurance statements, repair invoices, registration, and a record of total annual mileage (business and personal) to calculate your business-use percentage accurately.
A Practical First-Year Strategy
If you’re genuinely unsure which method will serve you better long-term, track everything in year one — mileage and actual expenses both — even though you only need one for the actual filing. Calculate your deduction both ways before deciding. If standard mileage wins that year, you’ve lost nothing and kept your options open for future years. If actual expenses win, you’ll want to confirm that’s a durable advantage (not just a one-time high-repair year) before locking in a method you can’t undo.
Sources: IRS Publication 463 (Travel, Gift, and Car Expenses); 2026 standard mileage rate notice; IRS rules on vehicle depreciation method elections.
This article is educational content, not individualized tax or legal advice. Consult a qualified professional about your specific situation.