Washington Mileage Deduction 2026: No State Tax, Federal-Only Savings

Washington has no state income tax. Your mileage deduction applies to your federal return only. At 15,000 business miles and the 2026 IRS rate of 72.5¢ per mile, that is roughly $4,056 in combined federal income tax and self-employment tax savings.

W-2 employee in Seattle? Your employer may owe you reimbursement under the Seattle Wage Theft Ordinance. See our Washington reimbursement guide.

No State Income Tax

Washington is one of nine states with no income tax. Self-employed workers deduct mileage on federal Schedule C only. There is no state form, no state adjustment, and no second deduction to claim.

At 15,000 business miles and the 2026 rate, the math comes out to a $10,875 deduction. At a 22% federal bracket plus 15.3% self-employment tax, your savings are roughly $4,056. The federal calculation is identical for someone in the same bracket in Texas, Florida, or Nevada.

Washington's Driving Economy

Washington has a deep gig and trades economy that drives high mileage:

• Tech contractors driving between Seattle, Bellevue, and Redmond campuses for project-based work.
• Real estate agents covering the Puget Sound region and beyond into Spokane and Tri-Cities.
• Agriculture and orchard contractors in Eastern Washington with long travel distances between job sites.
• Rideshare and delivery drivers in Seattle, Tacoma, and Spokane, where airport runs and cross-county routes are common.
• Mobile trades: HVAC, plumbing, and electrical contractors covering Western Washington's dense suburbs.

For most of these roles, business mileage easily clears 15,000 miles per year. At higher mile counts, the federal-only savings compound fast.

Washington Gas Prices

Washington gas prices ran above the national average through 2025 and into 2026, driven in part by the state's Climate Commitment Act fuel surcharges. The IRS standard mileage rate of 72.5 cents per mile is built to cover gas plus depreciation, insurance, and maintenance. In a high-cost-fuel state, the rate may slightly under-compensate, but it remains the simplest defensible method for most filers.

How to Claim

Self-employed: deduct on Schedule C, Line 9. Keep a mileage log with the date, destination, purpose, and miles for each trip. The IRS requires the log to be contemporaneous, recorded as trips happen rather than reconstructed at year-end.

W-2 employees: no federal deduction is available. The mileage deduction for W-2 employees was permanently eliminated under the One Big Beautiful Bill. If your employer does not reimburse, the cost is yours, with one exception. See the Washington reimbursement guide for the Seattle rule.

FAQ

Does Washington have a state mileage deduction?

No. Washington has no income tax, so there is no state-level deduction to claim. The federal Schedule C deduction is your only path.

What is the 2026 mileage rate in Washington?

The IRS rate of 72.5 cents per mile applies in Washington as in every state. Washington does not set its own rate.

Can W-2 employees deduct mileage in Washington?

No, not on a federal return. The deduction was permanently eliminated under the One Big Beautiful Bill. If you work inside Seattle city limits, your employer may owe you reimbursement under the Seattle Wage Theft Ordinance instead.

How much can a self-employed Washington driver save?

At 15,000 business miles, roughly $4,056 in combined federal income and self-employment tax. At 25,000 miles, roughly $6,760. The federal savings are identical to drivers in Texas, Florida, or Nevada at the same income level.

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