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529 contributions in Washington

Varies

Are 529 Contributions Tax Deductible in Washington?

Short answer: No: Washington has no state income tax, so there's nothing to deduct 529 contributions from. No wage income tax (capital gains excise only), so no deduction for WA529 Invest or GET contributions.

There's no federal deduction for 529 contributions; growth is tax-free when used for qualified education costs. You can still use any state's plan.

Records to keep: Keep receipts, statements, and a note of what each cost was for. Compare itemizing to the 2026 standard deduction ($16,100 single / $32,200 joint) before you claim.