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2026 State Tax & SUI Compliance

Washington Payroll Taxes & SUI Wage Base Limits

State Unemployment Insurance (SUI) taxable wage base, FUTA credit rules, State Disability (SDI), Paid Family Medical Leave (PFML), and employer tax splits under RCW 49.46.020.

State Code: WA
Statutory Citation: RCW 49.46.020
FICA Split: 7.65% EE / 7.65% ER

State Unemployment Insurance (SUI) & Tax Structure in Washington

In Washington, employers must contribute to State Unemployment Insurance (SUI) based on experience ratings and annual employee taxable wage limits under RCW 49.46.020.

Employer SUI Contributions

Experience-rated tax paid entirely by employers up to the state annual wage base floor.

FUTA Credit Offset (6.0% - 5.4%)

Compliant state SUI payments earn employers up to a 5.4% credit against federal 6.0% FUTA tax.

Mandatory Payroll Withholding Summary

Federal FICA Tax: 6.2% Social Security (up to $168,600 cap) + 1.45% Medicare (uncapped).
Washington State Income Tax: Computed using employee W-4 / state filing status options.
SDI / PFML Withholdings: State Disability Insurance & Paid Family Leave payroll deductions where mandated.
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