Standard Mileage vs Actual Expenses: Which Method Saves You More?

Short answer: Standard mileage vs actual expenses comes down to arithmetic. The standard mileage method deducts a flat 72.5 cents per business mile in 2026. The actual expense method deducts the business-use percentage of your real car costs: gas, insurance, repairs, and depreciation. Standard mileage usually wins for high-mileage or fuel-efficient vehicles, and the actual expense method usually wins for costly vehicles driven few miles with heavy repair bills. Both methods require a mileage log.

Choosing between the standard mileage rate and the actual expense method can meaningfully change your tax bill. This article explains how each method works, walks through a side-by-side comparison, and gives you a framework for deciding which one saves you more.

What is the standard mileage method?

The standard mileage method calculates your vehicle deduction by multiplying your business miles by the IRS standard mileage rate. For 2026 that rate is 72.5 cents per mile.

Under this method, the per-mile rate already includes gas, oil, maintenance, tires, insurance, registration, and depreciation. You do not deduct those costs separately. You can still add business-related parking and tolls on top. The main record you need is a contemporaneous mileage log showing the date, purpose, and distance of each business trip.

What is the actual expense method?

The actual expense method calculates your deduction by adding up all the real costs of operating your vehicle and then deducting the portion attributable to business use. You determine business use by dividing business miles by total miles.

Deductible actual expenses include:

• Gas and oil.
• Repairs and maintenance.
• Tires.
• Insurance.
• Registration and license fees.
• Lease payments (business-use portion).
• Depreciation, if you own the vehicle.
• Garage rent and, separately, business parking and tolls.

The actual expense method requires you to keep receipts and records for every one of these costs, plus a mileage log to establish your business-use percentage. It is more work, but it can produce a larger deduction for certain vehicles.

Standard mileage vs actual expenses: how do the two methods compare?

Here is a direct comparison of the two methods across the factors that matter most to self-employed drivers.

Factor	Standard mileage method	Actual expense method
Deduction basis	72.5¢ × business miles (2026)	Business-use % × actual costs
Records required	Mileage log only	Mileage log + all cost receipts
Gas and maintenance	Included in the rate	Deducted individually
Depreciation	Built into the rate	Deducted separately (can be large)
Best for	Fuel-efficient cars, high business mileage	Expensive vehicles, low mileage, high repairs
Recordkeeping burden	Lower	Higher
First-year flexibility	Choose it in year one to switch later	Certain depreciation choices lock in
Parking and tolls	Deductible on top	Deductible on top

Both methods start with a mileage log, so tracking your business miles is unavoidable regardless of which you choose.

Which method saves you more?

The method that saves you more depends on your vehicle’s cost, its fuel efficiency, and how many business miles you drive. As a general rule, high mileage in an economical car favors the standard mileage method, while an expensive vehicle driven fewer miles favors the actual expense method.

Consider two examples:

• A rideshare driver who puts 25,000 business miles a year on a fuel-efficient sedan often does best with the standard mileage method. At 72.5 cents per mile, that is an $18,125 deduction, which frequently exceeds their actual costs.
• A contractor who drives an expensive truck only 6,000 business miles a year, with high fuel, insurance, and repair costs plus meaningful depreciation, may get a larger deduction from the actual expense method.

The only way to know for sure is to estimate your deduction both ways. Because you already need a mileage log for either method, you can run the standard mileage calculation for free and compare it against your tracked actual costs.

What are the rules for switching methods?

The rules in IRS Publication 463 limit switching between methods, so your first-year choice matters. If you want the flexibility to use the standard mileage method later, you generally must use it in the first year the vehicle is placed in service for business.

Key rules to keep in mind:

• To be able to switch between methods in later years, choose the standard mileage method in the vehicle’s first business year.
• If you use the actual expense method and claimed accelerated depreciation in year one, you generally cannot switch to the standard mileage method for that vehicle afterward.
• For a leased vehicle, if you choose the standard mileage method, you must use it for the entire lease term.
• You cannot use the standard mileage method for a fleet of five or more vehicles operated at the same time.

Because these choices are difficult to reverse, it is wise to think about your long-term plans for the vehicle before you file your first return with it.

Does either method still require a mileage log?

Yes. Both the standard mileage method and the actual expense method require a mileage log. The standard mileage method uses your log to count deductible miles, and the actual expense method uses it to calculate your business-use percentage.

This is why accurate mileage tracking is the foundation of any vehicle deduction. If you keep a clean, contemporaneous log all year, you can calculate your deduction both ways and choose whichever saves you more. Our guide to IRS mileage log requirements explains exactly what your log must contain, and a companion piece on how to track mileage for taxes covers the practical methods for capturing trips as they happen.

How Keel supports either method

Keel: Invoice Maker & Receipts is a private, on-device bookkeeping app for self-employed and 1099 workers, and it supports both deduction methods. It tracks mileage at the IRS rate and stamps each trip at 72.5 cents for 2026, giving you the log you need for the standard mileage method and the business-use data you need for the actual expense method. You can also capture receipts for gas, repairs, and insurance if you plan to compare actual costs.

Keel keeps your data private: no bank connection, no cloud, and no account. Everything is stored encrypted on your iPhone, which is why the App Store shows “Data Not Collected.” You can log trips by hand or with Siri, keep an append-only verifiable ledger, and export all of your records as one file for your accountant. The honest tradeoff is a little manual entry in exchange for privacy and ownership.

Keel is free with unlimited invoices, receipts and mileage; Pro is a one-time $249.99 Lifetime purchase, not a subscription.

Track miles and receipts privately with Keel — download it on the App Store.

Regional notes for the UK, Canada, and EU

The standard-versus-actual choice is a US concept. Other countries structure vehicle deductions differently.

• United Kingdom: HMRC offers simplified mileage (45p per mile for the first 10,000 business miles, 25p thereafter) as an alternative to claiming a share of actual running costs. See GOV.UK on simplified expenses, or our guide to the UK self-employed mileage allowance.
• Canada: Self-employed Canadians generally deduct the business-use percentage of actual vehicle expenses, tracked with a logbook. Our guide to Canadian self-employed vehicle expenses walks through the CRA rules.
• European Union: Approaches vary by country; many use per-kilometre allowances. Consult your national tax authority.

Frequently asked questions

Is the standard mileage rate or actual expense method better? It depends on your vehicle and mileage. High-mileage, fuel-efficient cars usually favor the standard mileage rate, while expensive or high-cost vehicles driven fewer miles often favor actual expenses. The break-even point shifts each year with the rate and with fuel prices, so run both calculations before you file rather than repeating last year’s choice out of habit.

Can I use both methods in the same year? Not for the same vehicle. You choose one method per vehicle per year. If you operate multiple vehicles, you may be able to use different methods for different cars, subject to the rules. The one hard limit is fleet size: you cannot use the standard mileage method for five or more vehicles operated at the same time.

Do I need receipts for the standard mileage method? No gas or maintenance receipts are needed for the standard mileage method, but you must keep a mileage log. You do need receipts for the actual expense method. Keep parking and toll receipts either way, since those are deductible on top of the standard rate, and hold on to repair invoices if there is any chance you will compare methods at filing time.

Can I switch from standard mileage to actual expenses later? You can switch in some cases if you originally chose the standard mileage method in the vehicle’s first business year. Switching the other way is more restricted, especially after claiming accelerated depreciation. One consequence people miss: once you have used the standard mileage method, any later actual-expense year must use straight-line depreciation over the vehicle’s remaining useful life.

Which method needs less recordkeeping? The standard mileage method needs less recordkeeping because it only requires a mileage log, not receipts for every vehicle expense. The log still has to be contemporaneous, though, with the date, destination, business purpose, and distance of each trip. Reconstructing a year of driving from memory at filing time is a common reason vehicle deductions get disallowed.

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This article is general information, not tax advice. Consult a qualified tax professional.