Mileage Deduction Calculator: Turning 2026 Miles Into Tax Savings
For anyone who drives for work, mileage is usually the largest deduction on the return — often larger than every other expense combined. A mileage deduction calculator makes the size of that number obvious, which is exactly the motivation most people need to start logging properly.
The 2026 standard mileage rate
Business miles are deductible at $0.70 per mile for 2026. Drive 18,000 business miles and that is $12,600 off your net profit — which cuts income tax and 15.3% self-employment tax at the same time. At a combined 30% rate, that single line is worth roughly $3,780.
Which miles count
Miles driven for business purposes: to a client, between job sites, to the bank or supply store, and for gig workers, from the moment you go online until you go offline — including the drive between drop-off and the next pickup. Commuting from home to a fixed regular workplace does not count.
The gig-driver nuance
Platform apps only track miles on an active order. Your deductible total also includes waiting-and-repositioning miles while available for work, which is frequently 30% to 40% more than the platform's figure.
The home office effect
If your home qualifies as your principal place of business, the first trip out of the house is a business trip rather than a commute, which quietly adds thousands of deductible miles a year.
Standard rate vs actual expenses
The actual expense method deducts the business-use percentage of gas, insurance, repairs, depreciation, and lease payments. It wins for expensive or heavily depreciating vehicles driven relatively few miles. The standard rate wins for high-mileage, low-cost cars — which describes most delivery and rideshare work. Run both once; the gap is usually decisive.
The lock-in rule most people miss
If you use actual expenses in the first year you place a car in service, you generally cannot switch to the standard rate later for that vehicle. Starting with the standard rate keeps both doors open in future years. Choose deliberately in year one.
Worked example: 24,000 miles for a delivery driver
Gross earnings of $52,000 with 24,000 business miles gives a $16,800 mileage deduction. Add $1,400 of phone, insulated bags, and tolls and net profit falls to $33,800. Self-employment tax drops from about $7,346 on the undeducted figure to roughly $4,776 — the mileage log alone is worth more than $5,000 across SE and income tax.
What a compliant log contains
Date, starting and ending odometer or total miles, destination, and business purpose. Contemporaneous beats reconstructed: an app that records automatically, or a note written the same day, is what auditors accept. Also record the odometer on January 1 and December 31 to establish total annual mileage.
Apps versus a notebook
Automatic trackers such as Everlance, Stride, MileIQ, or Hurdlr run in the background and classify trips with a swipe. A paper log works perfectly well if you actually keep it. The failure mode is not the tool — it is trying to remember three months later.
Medical, moving, and charity miles
Those categories are deductible at much lower rates and only in specific circumstances, and charity miles are fixed by statute. Do not mix them into the business total; they belong on different lines of the return.
Common mistakes that shrink the deduction
Using only the platform's reported miles, forgetting the trip to the supply store, skipping months and estimating later, and claiming both the standard rate and separate gas or repair costs. Tolls and parking are the exception — they are deductible on top of the standard rate.
Frequently asked questions
+What is the mileage deduction rate for 2026?
$0.70 per business mile under the IRS standard mileage rate.
+How much is 10,000 miles worth as a deduction?
$7,000 at the 2026 rate, which typically saves $1,800 to $2,500 in combined income and self-employment tax.
+Can I deduct mileage and gas together?
No. The standard rate already includes fuel, maintenance, insurance, and depreciation. Only tolls and parking may be added on top.
+Do commuting miles count?
Not for travel between home and a regular workplace. If your home is your principal place of business, trips from there are business miles.
+What records does the IRS require for mileage?
A log showing date, miles, destination, and business purpose, kept at or near the time of the trip.
+Is the standard rate always better than actual expenses?
Usually for high-mileage, low-cost vehicles. Expensive cars driven modest distances often do better with actual expenses — compare both in the first year.
About the author
Javed Niamat · Founder & Editor, GigTax
Javed Niamat founded GigTax to make self-employment tax math understandable for rideshare drivers, delivery couriers, creators and freelancers. He builds and maintains every calculator on this site and writes the guides that explain the numbers behind them.
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Related guides
- Mileage Deduction Rules 2026: Every IRS Requirement in One PlaceThe complete 2026 IRS mileage deduction rulebook: 70¢ standard rate, standard vs. actual method, commuting rules, recordkeeping, and audit-proof documentation.
- IRS Mileage Rate Guide: 2026 Rates, History, and How to Use ThemComplete IRS mileage rate guide for 2026: business, medical, and charity rates, historical rate chart, how the IRS sets the rate, and how to apply it on Schedule C.
- How to Track Mileage for Taxes: The 2026 Step-by-Step GuideLearn how to track business mileage for taxes in 2026: best apps, IRS-compliant logs, audit-proof records, and how to reconstruct missed trips legally.
- Mileage Tracker for Taxes: How to Choose One the IRS Will Accept in 2026How to choose a mileage tracker for taxes in 2026: what the IRS requires in a log, auto-tracking vs. manual apps, GPS accuracy, and export formats that survive an audit.