07/14/2026
Standard Mileage vs. Actual Expense: The Choice You Make in Year 1 Matters
If you use your personal vehicle for business, the IRS gives you two ways to deduct that cost, but the method you pick in Year 1 can lock in your options down the road.
Standard Mileage Rate = Simple
Track your business miles, multiply by the IRS rate, done. You still need a mileage log that includes the date, destination, business purpose, and miles driven for each trip, but you can skip saving every gas and repair receipt.
Actual Expense Method = Detailed
Deduct the real cost of business use including gas, insurance, repairs, depreciation, etc. based on the percentage of miles driven for business. This method demands thorough recordkeeping: every receipt, invoice, and odometer reading, plus a clear log of business vs. personal miles to calculate your business-use percentage. Sometimes a bigger deduction (especially for pricier vehicles), but only if your records can back it up.
Why Year 1 Is the Big Decision
Choose standard mileage first, and you can switch to actual expenses in a later year.
Choose actual expenses first, and you're generally locked into that method for the life of the vehicle (no switching to standard mileage later).
Bottom line: Whichever method you choose, good records from day one are non-negotiable and they're what substantiate your deduction if the IRS ever asks. Starting with standard mileage keeps your options open. Starting with actual expenses is a one-way street.
Not sure which fits your situation? Let's talk. This choice has long-term implications.