Standard Mileage Rate vs Actual Expense Method: Which Saves You More

The standard mileage rate vs actual expense method decision is one most self-employed drivers make at filing time, without knowing they needed to make it in January — and that the records each method requires had to be kept all year.

The standard mileage rate

The standard mileage rate for 2026 is 72.5 cents per mile. Multiply your business miles by that number and you have your deduction. No receipts required, no depreciation calculation, no tracking fuel separately from insurance. The rate covers all vehicle operating costs in a single per-mile number: fuel, maintenance, oil changes, tires, registration, and depreciation.

For most self-employed drivers with reliable vehicles and consistent business use, standard is the simpler method and often the larger deduction. A business vehicle logging 15,000 miles per year produces a $10,875 deduction at the standard rate, regardless of what the vehicle actually cost to operate.

The actual expense method

The actual expense method replaces the flat per-mile rate with the real cost of running the vehicle, prorated for business use. You add up what you spent: fuel, insurance, repairs, registration, and depreciation. Then you multiply by the business-use percentage, calculated as business miles divided by total miles for the year.

A vehicle used 70% for business with $8,000 in annual operating costs produces a $5,600 deduction on actual expense. Compare that to the mileage-based figure and take the larger number.

The actual method tends to favor drivers with high-cost vehicles, significant maintenance expenses, expensive insurance, or relatively low annual mileage. A newer truck with loan payments, high insurance, and frequent repairs on an 8,000-mile business year may produce a larger deduction on actual than on standard. The only way to know is to run both calculations.

The switching rules

The IRS does not allow free switching between methods year to year. The key restriction: if you have ever claimed depreciation using MACRS (the standard accelerated depreciation schedule) or Section 179 expensing for the vehicle, you are locked into the actual expense method for that vehicle's remaining life.

The reverse is less restrictive: you can generally switch from actual to standard in a later year, provided you have not used accelerated depreciation. Starting with the standard rate preserves the option to switch. Starting with actual expense and using Section 179 in year one commits you to actual for that vehicle.

The records requirement is the same at the starting point

Both methods require a mileage log. The actual expense method also requires receipts for every vehicle expense: fuel, repairs, insurance invoices, registration fees.

The insight most people reach too late: you cannot decide in December which method gives you a larger deduction if you only kept one set of records since January. If you tracked miles but no receipts, standard is your only option. If you kept neither, there is no deductible mileage.

The only way to let your accountant run both calculations at year-end is to have maintained both records throughout the year. Odometer readings in the mileage log, and gas receipts, repair invoices, and insurance records captured as they occur.

What Mileage Ledger handles

The Mileage Log and Mileage Form are Standard features in Your Mileage Ledger. Each trip entry captures date, destination, business purpose, and odometer start and end. The log calculates deductible miles and applies the current IRS rate per trip automatically.

For actual expense tracking, Mileage Ledger Premium includes the Vehicle Expense Form: a linked Google Form for logging fuel costs, repair invoices, maintenance charges, and insurance premiums with receipt photos at the point of purchase. Your accountant uses both sets of records at year-end to run the comparison and take whichever deduction is larger.

Mileage Ledger Pro includes Projects and Customize Forms, where you can configure the Trip Purposes dropdown in your Mileage Form to match your specific business categories, which keeps purpose entries consistent when logging at high volume.

Mileage Ledger Premium adds features that simplify the year-end handoff: Tab Export saves all visible tabs as PDFs to the same Drive folder as your sheet, organized by tab, year, and month. Email Mileage Log Report emails the full mileage log as a PDF so your accountant receives the full trip detail in one step.

The record-keeping is your job throughout the year. The calculation is your accountant's job at filing time. What they can calculate depends entirely on what you captured.

Tracking both sets of records in your ledger

Your Mileage Ledger logs every trip with odometer readings and calculates your standard mileage deduction automatically. Mileage Ledger Premium adds the Vehicle Expense Form for logging fuel, repairs, and insurance at the point of purchase — the records the actual expense method requires. Your Expense Ledger captures business expenses the same way, with receipts attached at entry. Expense Ledger Premium adds Email Tax Report, which sends your Tax Summary, expense transactions, and mileage log to your accountant as formatted PDFs in one step, so your accountant receives both sets of records at year-end to run the comparison.