Washington Capital Gains Tax 2026: 7% tax on long-term capital gains above the annual threshold.

Washington capital gains are modeled as 7% tax on long-term capital gains above the annual threshold.. Use this free calculator to estimate capital gains tax in Washington, including federal rates, NIIT when applicable, and Washington's state treatment (7% tax on long-term capital gains above the annual threshold.).

State treatment: 7% tax on long-term capital gains above the annual threshold.·Official source ↗

Rates last verified: August 2026

Capital Gains Calculator

Federal · NIIT · All 50 states

2026 ratesIRS verified

Follow the three steps, save the sale, then calculate. Required fields are marked with *.

Your tax profile

These apply to every sale in this estimate.

Tax year

Filing status

State

Annual taxable income (before these gains)

Capital loss carried from prior years

What you sold

Prices and quantity for this lot. Give it a name if you will add more than one sale.

Asset type

Asset name

Buy price

Sell price

Quantity / units

Selling expenses

Repurchased within 30 days (wash-sale check)

When you bought and sold

The IRS uses these dates to decide short-term vs long-term rates.

Buy date

Sell date

Next: Save this sale to the order log, then click Calculate now. Tax results do not update until you calculate.

Order log

Sales included in this tax estimate.

Please fill in the details to see your results. Follow the three steps on the left, then save a sale here.

Washington capital gains tax overview

Washington has no ordinary income tax but models a long-term capital-gains surtax above an encoded threshold, so it is not a zero-CGT state in this calculator. Short-term gains and amounts under the threshold can look very different from California’s ordinary-income model.

Federally, short-term gains (held one year or less) are taxed as ordinary income, while long-term gains generally use 0%, 15%, or 20% preferential rates for tax years 2025 and 2026. High earners may also owe the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold for their filing status.

Washington uses a special capital gains rule: 7% tax on long-term capital gains above the annual threshold. Our engine encodes that rule so your estimate reflects Washington-specific treatment rather than a generic flat percentage.

Washington figures in this model are drawn from the official source we cite for the state: https://dor.wa.gov/. Confirm the current-year statute or agency page before you file — rates and special rules can change.

This calculator models Washington long-term capital gains at 7% above $262,000. It does not apply a 9.9% tier on gain above $1 million, and it does not inflation-adjust the $262,000 figure for 2026.

Only long-term gain is run through that surtax. Short-term gain is not taxed by Washington in this model. A $50,000, $100,000, or $250,000 long-term gain sits under the $262,000 threshold, so the illustrated Washington line is $0. Gain above $262,000 is taxed at 7% on the excess only.

Rates last verified: August 2026. Official source: https://dor.wa.gov/.

Use the calculator above with filing status and income to stack federal long-term or short-term tax, NIIT, and Washington state tax. Compare nearby states from the links below, review our methodology for data sources (including Washington's official reference), and consult a CPA before filing. This page is educational and not tax advice.

Special Washington rule

7% tax on long-term capital gains above the annual threshold.

Washington rate snapshot

Category	special
Summary	7% tax on long-term capital gains above the annual threshold.
Abbreviation	WA
Top / modeled rate	7.00%
Special threshold	$262,000

Illustrated tax on a long-term gain

Long-term stock gain while living in Washington. Federal and NIIT use the same income on every state page. The Washington column is the only state tax that changes.

Gain	Federal	NIIT	Washington	Texas state tax
$50,000.00	$7,500.00	$0.00	$0.00	$0.00
$100,000.00	$15,000.00	$0.00	$0.00	$0.00
$250,000.00	$37,500.00	$4,940.00	$0.00	$0.00

Single filer, tax year 2026, $80,000.00 of other taxable income. Texas is the no-tax comparison. Illustration only, not your return.

Always verify rates with theWashington revenue agencyand review ourmethodology. Not tax advice.

Estimate Washington tax by asset

Estimate Washington tax on stocks, crypto, real estate, collectibles, and QSBS.

FAQ

Washington FAQs

What is unique about Washington capital gains tax?

7% tax on long-term capital gains above the annual threshold. Summary: 7% tax on long-term capital gains above the annual threshold..

Does Washington still stack on top of federal tax?

Yes. This page estimates federal tax and NIIT, then adds the Washington special-rule layer. Federal short-term and long-term capital gains tax, and the 3.8% Net Investment Income Tax when MAGI exceeds the IRS threshold, can still apply.

Where can I verify Washington rules?

See the official source we cite: https://dor.wa.gov/. Special-rule states change more often than flat-rate states — confirm current-year thresholds before you sell.

Do Washington's special capital gains rules apply if I am a part-year resident?

Part-year and nonresident sourcing can change whether Washington's special rule (7% tax on long-term capital gains above the annual threshold.) applies to a given sale. This calculator models a full-year Washington resident at the encoded rule. Thresholds, exclusions, and residency tests belong on the official Washington return.

Why can a large Washington gain still show $0 of state tax?

The model subtracts $262,000 from long-term gain and taxes only the remainder at 7%. Illustrations at $50,000, $100,000, and $250,000 are below that threshold.

Does this Washington calculator apply 9.9% above $1 million?

No. A higher tier is not in the engine. The only Washington rate computed here is 7% above $262,000 of long-term gain.

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