When was the tax enacted and when did it survive its court challenge?

Senate Bill 5096 was enacted in 2021 (Session Law 2021 c 196), with the tax first effective for the 2022 tax year. The constitutional challenge — Quinn v. State — was filed shortly after enactment on the theory that the tax was an income tax in disguise (because it was measured by gain, which is a component of income). The Washington Supreme Court rejected that argument in a 7-2 decision on March 24, 2023, holding that the tax was a valid excise on the sale of capital assets rather than a tax on the income of the seller. The first returns under the upheld statute were due April 18, 2023, for the 2022 tax year. The U.S. Supreme Court declined to take the case in January 2024, leaving the Washington Supreme Court's decision as the final word.

Is the rate really just 7%, with no progressive brackets?

Yes. RCW 82.87.040 sets a flat 7% rate. There is no graduated bracket structure — every dollar of taxable Washington capital gain above the standard deduction is taxed at exactly 7%. A seller with $300,000 of taxable gain pays the same 7% on the first dollar above $270,000 as a seller with $30 million of taxable gain pays on the millionth dollar. This is unusual compared to most state capital gains regimes — California, New York, Massachusetts, and others tax capital gains as ordinary income through their progressive brackets. Washington's flat-rate, single-bracket structure mirrors the federal long-term capital gains rate framework's simplicity (though the federal regime does have 0% / 15% / 20% brackets based on ordinary income, where Washington does not).

How does the $270,000 standard deduction work — is it per couple or per person?

Per individual. RCW 82.87.060 sets the deduction at $270,000 per individual taxpayer for the 2025 tax year (inflation-adjusted annually). It is NOT a household figure. A married couple where BOTH spouses realize long-term capital gains in their own names each get their own $270,000 deduction — effectively a $540,000 household threshold. A married couple where only ONE spouse realizes the gain (e.g., the asset is the separate property of the husband) is limited to a single $270,000. This creates a planning opportunity in community-property situations: if the asset is community property and the couple sells it jointly, each spouse can claim their proportionate share of the gain and apply their own $270,000 deduction. The Washington DOR provides a worksheet in the Form 41 0050 instructions for this allocation.

Why is real estate fully exempt — and does that include my home sale?

Real estate gain is fully exempt under RCW 82.87.050(1)(a). This is the single largest exemption in the statute and the reason virtually no Washington homeowner owes the 7% tax on a home sale. The exemption covers gain on the sale of a primary residence (federal IRC § 121 exclusion applies separately for federal purposes), the sale of investment real estate, the sale of raw land, the sale of vacation property, and certain look-through interests in entities where substantially all of the underlying assets are real property. The exemption is at the gain level, not the proceeds level — but since the entire real-estate gain is exempt, the practical effect for most home sellers is that the Washington tax is simply irrelevant to their sale. A separate federal capital gains analysis still applies, which is where the IRC § 121 $250K-single-or-$500K-MFJ exclusion does its work.

What about gains inside my IRA or 401(k)?

Gain on the sale of assets held in a qualified retirement account is fully exempt under RCW 82.87.050(1)(c). The exemption covers traditional IRAs, Roth IRAs, 401(k), 403(b), 457, SEP-IRA, SIMPLE IRA, defined-benefit pensions, and any other plan qualifying under IRC § 401, § 403, § 408, § 408A, or § 457. The exemption tracks the federal IRC § 1411(c)(5) exclusion of qualified-plan distributions from NIIT — Washington adopted the same policy for the same reason: retirement-account gains are already taxed (on a deferred basis) under the ordinary-income provisions of the federal code, and double-taxing them at the state-excise level would discourage retirement savings. So a Washington retiree who realizes $200,000 of gain inside their IRA during the year owes $0 of Washington capital gains tax on that gain, even though the equivalent gain in a taxable brokerage account would face the 7% levy.

How does the qualified family-owned small business exemption work?

RCW 82.87.070 provides a full exemption for gain on the sale of a qualified family-owned small business interest if three tests are met simultaneously: (1) WORLDWIDE GROSS REVENUE ceiling — the business's worldwide gross revenue does not exceed approximately $10.6M for 2026, inflation-adjusted; (2) FAMILY OWNERSHIP test — at least 50% of the interest in the business has been owned by family members (defined to include spouses, parents, children, siblings, grandparents, grandchildren, and certain in-laws) for 5 of the preceding 10 years; and (3) MATERIAL PARTICIPATION test — the seller or a qualifying family member has materially participated in the business for 5 of the preceding 10 years. The exemption is structured as a removal of the gain from 'Washington capital gain' rather than as a credit, so it works WITH the standard deduction rather than against it. The qualification is fact-intensive and a frequent audit target; consult a Washington tax practitioner before relying on it.

What is the 51% test for agricultural assets?

Gain on the sale of cattle, horses, or breeding livestock is exempt under RCW 82.87.050(1)(e) only if MORE THAN 51% of the taxpayer's gross income for the year of sale AND the two preceding years is from farming or ranching. The test is income-based, not time-based or asset-based — a hobby farmer with substantial off-farm income (W-2 wages, investment income, rental income) typically fails the 51% test even if they spend most of their time on the farm. Below the 51% threshold the agricultural gain is fully taxable under the 7% rate. The carve-out is narrow: only cattle, horses, and breeding livestock qualify under this provision. Gain on the sale of crops, farm equipment (other than breeding livestock), or farmland itself is treated under different provisions — farmland sells through the RCW 82.87.050(1)(a) real-estate exemption (so it is fully exempt for an unrelated reason), while crops are typically inventory and may not be capital assets at all.

Why is timber on its own exemption track?

Gain on the sale of timber, timberland, or timber rights is fully exempt under RCW 82.87.050(1)(g) IF the gain is subject to the Forest Excise Tax under RCW Chapter 84.33. The carve-out exists to prevent double-taxation: timber gains pay the separate Forest Excise Tax (a percentage of the stumpage value at the time of harvest) under a regime that predates the capital gains tax by decades. Subjecting the same gain to both the Forest Excise Tax AND the 7% capital gains tax would compound the burden on a single transaction. The exemption is conditional on the gain actually being subject to the Forest Excise Tax — gain that escapes the Forest Excise Tax (rare; typically only for very small de-minimis sales or for timber that is not commercial-grade) may be taxable under Chapter 82.87. Timberland itself (the underlying real property) is exempt under the broader RCW 82.87.050(1)(a) real-estate exemption.

What is the $100,000 charitable deduction — and which charities qualify?

RCW 82.87.070 provides a qualified charitable contribution deduction of up to $100,000 for the 2025 tax year (inflation-adjusted), in addition to the $270,000 standard deduction. The deduction is narrowly scoped: only cash contributions to (a) qualified Washington educational institutions and (b) certain other 501(c)(3) organizations principally directed or managed in Washington qualify. National 501(c)(3) charities, out-of-state schools, and most national disease-research foundations do NOT qualify — even if the contribution is fully deductible for federal income tax purposes. Only contributions over $250 to a single qualifying organization count toward the deduction (a de-minimis floor that filters out small recurring gifts). The deduction is computed at the donor level, so a married couple where both spouses make qualifying contributions each get their own $100,000 cap (potentially $200,000 of charitable deduction at the household level).

How does marriage filing affect the calculation?

Washington does not have a joint-return mechanic equivalent to federal MFJ. Each spouse files their own Form 41 0050 if both have Washington capital gains in their own names. Each spouse independently applies their own $270,000 standard deduction, their own $100,000 charitable cap, and their own exemption analysis. For community-property assets sold jointly, the gain is allocated between the spouses — typically 50/50 absent a contrary written agreement — and each spouse claims their own share against their own deductions. This creates a planning opportunity that is absent at the federal level: ensuring both spouses are co-owners of appreciating capital assets effectively doubles the household-level deduction stack. A couple selling $540,000 of long-term gain on a jointly-held investment portfolio can pay $0 Washington tax (each spouse: $270,000 gain, $270,000 deduction, $0 tax), where a couple selling the same gain on a portfolio held entirely in one spouse's name would pay 7% × $270,000 = $18,900.

Can I carry forward Washington capital losses?

Washington allows a LIMITED capital loss carryforward — losses can be carried forward against future Washington capital gains, but cannot be carried back. The carryforward is computed at the Washington level and does NOT flow from the federal IRC § 1212 capital loss carryover; the two tracks are separate. A Washington seller with a $100,000 long-term capital loss in one year and a $400,000 long-term capital gain in the next year can use the $100,000 carryforward against the second year's gain (so Washington capital gain becomes $300,000, then minus the $270,000 standard deduction = $30,000 × 7% = $2,100 tax). Importantly, the federal short-term-vs-long-term distinction matters: short-term losses do not carry forward against long-term Washington gains, since the tax applies only to long-term gains. The mechanic is narrow but valuable for filers who time large gain realizations against earlier loss years.

Reviewed against RCW Chapter 82.87 (Washington Long-Term Capital Gains Tax); RCW 82.87.040 (7% rate); RCW 82.87.050 (exemptions — real estate, retirement, qualified family small business, agricultural, timber, commercial fishing, trusts); RCW 82.87.060 (standard deduction — $270,000 for 2025, inflation-adjusted); RCW 82.87.070 (qualified charitable deduction — $100,000 cap for 2025); RCW 82.87.080 (allocation and Washington nexus); RCW 82.87.090 (reporting and Form 41 0050); WAC 458-20-300 (Department of Revenue rules); Senate Bill 5096 (2021 enactment); Quinn v. State, 200 Wn.2d 1 (2023) (Washington Supreme Court upholding the tax)

Washington State Capital Gains Tax Calculator

Estimate Washington's 7% long-term capital gains tax under RCW Chapter 82.87 — the stand-alone state excise enacted by SB 5096 in 2021 and upheld by the Washington Supreme Court in Quinn v. State, 200 Wn.2d 1 (2023). Washington has no state personal income tax (Article VII of the Washington Constitution); this 7% levy sits alone on long-term capital gains in excess of a $270,000-per-individual standard deduction (RCW 82.87.060, inflation-adjusted). Surfaces the broad RCW 82.87.050 exemptions (real estate, retirement accounts, qualified family-owned small business, agricultural assets meeting the 51% farming-income test, timber and timberland under the Forest Excise Tax of Chapter 84.33, commercial fishing privileges), the $100,000 qualified charitable deduction for contributions to Washington educational institutions (RCW 82.87.070), and the April 15 Form 41 0050 filing deadline.

Calculator

Adjust the inputs below; the result updates instantly.

Gains

Total long-term capital gains ($)

$500,000

Exemptions

Gain on real estate ($) — exempt

Gain in qualified retirement accounts ($) — exempt

Gain on qualified family-owned small business ($) — exempt

Gain on agricultural assets ($) — exempt if 51% farm income

Gain on timber / timberland ($) — exempt under Ch. 84.33

Deductions

Qualified charitable contributions ($) — capped at $100,000

Tax year

Tax year for which the gain is realized. Drives which inflation-adjusted deduction values apply. The calculator uses the 2025 statutory figures ($270,000 standard deduction, $100,000 charitable cap) as a stable planning baseline — later-year inflation adjustments are small and revisited annually with the Washington DOR release.

Washington capital gains tax (7%)

16,100.00

Total long-term capital gains: $500,000.00
Exempt portion (RCW 82.87.050): $0.00
Washington capital gain (post-exemption): $500,000.00
Standard deduction applied (RCW 82.87.060): $270,000.00
Qualified charitable deduction (RCW 82.87.070): $0.00
Taxable base (after all deductions): $230,000.00
Effective rate on gross LTCG: 3.22%
Savings from exemptions + deductions: $270,000.00
Statute-cited summary: Washington capital gains tax computed under RCW Chapter 82.87 (enacted 2021, upheld by the Washington Supreme Court in Quinn v. State, 200 Wn.2d 1, in 2023). Total long-term capital gains: $500,000. No exempt gain under RCW 82.87.050. Less $270,000 standard deduction under RCW 82.87.060 = $230,000 taxable base. Tax at 7% (RCW 82.87.040): $16,100. Effective rate on gross LTCG: 3.22%. Form 41 0050 filing deadline: April 15, 2027.

Tools to go with this

Planning a Washington asset sale near the $270,000 standard-deduction threshold? Get the WA capital gains filing kit.

Fennec Press's Washington capital gains tax bundle includes the Form 41 0050 line-by-line worksheet keyed to RCW Chapter 82.87, an RCW 82.87.050 exemption-classification flowchart (real estate, retirement, qualified family business, agricultural 51% test, timber Ch. 84.33), an RCW 82.87.070 qualified-charitable-deduction qualifier checklist (Washington educational institutions and Washington-managed 501(c)(3) recipients), a household-deduction-stacking memo for couples where both spouses realize gains separately, an estimated-payment schedule for quarterly RCW 82.32 filers, and a Quinn-v.-State doctrinal memo on the excise-vs.-income-tax distinction — built for Washington CPAs, estate planners, and high-net-worth families.

Open Fennec Press Washington capital gains bundle→

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How this calculator works

Washington has no state personal income tax. Article VII of the Washington Constitution — the uniformity clause — has been read since the 1930s to prohibit a graduated state income tax, and every legislative attempt to enact one has been struck down at the state supreme court. RCW Chapter 82.87, enacted by Senate Bill 5096 in 2021 and effective for the 2022 tax year, sits OUTSIDE that framework. The legislature deliberately structured the levy as a 7% excise tax on the privilege of selling a long-term capital asset, not as an income tax on the seller's income. Quinn v. State, 200 Wn.2d 1 (2023), rejected the constitutional challenge in a 7-2 decision and upheld the tax as a valid excise. The U.S. Supreme Court declined to take the case in January 2024, leaving the Washington Supreme Court's holding as the final word.

The result is the most narrowly-targeted state capital gains tax in the country: a flat 7% on long-term capital gains in excess of a high standard deduction, with broad statutory exemptions that carve out real estate, retirement accounts, qualified family-owned businesses, certain agricultural assets, and timber. Most Washington filers — including virtually all home sellers — owe $0 under it. The filers who do owe tend to owe meaningful dollars: the rate is flat, the deduction is high, and once you are over the threshold every additional dollar of taxable gain costs 7 cents.

The rate and the standard deduction

RCW 82.87.040 sets the rate at a flat 7%. There is no graduated bracket structure — every dollar of taxable Washington capital gain above the standard deduction is taxed at exactly the same 7%. A seller with $300,000 of taxable gain pays the same 7% on the first dollar above the threshold as a seller with $30 million of taxable gain pays on the millionth dollar.

RCW 82.87.060 sets the standard deduction at $270,000 per individual for the 2025 tax year, inflation-adjusted annually. The critical detail: the deduction is per individual, not per household. A married couple where both spouses realize long-term capital gains in their own names each get their own $270,000 deduction, for an effective $540,000 household threshold. A married couple where only one spouse realizes the gain (e.g., the asset is in one spouse's separate property) is limited to a single $270,000. This creates a real planning opportunity for couples with appreciating capital assets — co-ownership effectively doubles the deduction stack.

Worked example 1 — single filer, $500K stock sale, no exemptions

A Washington single filer sells a long-held position in publicly-traded stock for a $500,000 long-term capital gain. The asset is not real estate, not in a retirement account, not a family business interest, and not agricultural — so no exemption under RCW 82.87.050 applies. The filer makes no qualifying Washington charitable contributions.

Total LTCG: $500,000
Exempt gain: $0
Washington capital gain: $500,000
Standard deduction: $270,000
Taxable base: $500,000 − $270,000 = $230,000
Washington tax: $230,000 × 7% = $16,100
Effective rate on gross LTCG: $16,100 ÷ $500,000 = 3.22%

The effective rate dilution (3.22% vs the statutory 7%) is the standard-deduction's footprint — every Washington capital gains taxpayer's effective rate is between 0% and 7%, and the curve approaches 7% only for very large gains.

Worked example 2 — $500K with a $100K home sale gain

The same filer also sold a primary residence during the year, realizing a $100,000 gain on top of the $500,000 stock-position gain. Real estate gain is fully exempt under RCW 82.87.050(1)(a), so the home sale gain drops out of the Washington analysis entirely.

Total LTCG: $500,000 stock + $100,000 home = $600,000
Exempt gain (real estate): $100,000
Washington capital gain: $500,000
Standard deduction: $270,000
Taxable base: $230,000
Washington tax: $230,000 × 7% = $16,100

Notice that the Washington analysis here is IDENTICAL to Example 1 — the home sale simply disappears from the calculation. (The federal IRC § 121 primary-residence exclusion does its work separately for federal income tax purposes; the companion Section 121 calculator in the federal-tax cluster models that side.)

Worked example 3 — $1M stock sale with $50K charitable contribution

A Washington single filer sells a $1,000,000 long-term gain position and donates $50,000 in cash to a qualified Washington educational institution during the same tax year. The charitable deduction under RCW 82.87.070 caps at $100,000 — the filer's $50,000 contribution is well under the cap and fully deductible.

Total LTCG: $1,000,000
Exempt gain: $0
Washington capital gain: $1,000,000
Standard deduction (RCW 82.87.060): $270,000
Charitable deduction (RCW 82.87.070): $50,000
Taxable base: $1,000,000 − $270,000 − $50,000 = $680,000
Washington tax: $680,000 × 7% = $47,600

The $50,000 charitable contribution reduces the Washington tax by $50,000 × 7% = $3,500. Stacked against the federal income-tax charitable deduction (which, depending on the filer's federal bracket, may save 24%–37% of the same $50,000), the combined federal-plus-Washington benefit on a $50,000 contribution to a qualified Washington educational institution can exceed $15,000.

Worked example 4 — $400K mostly inside an IRA

A Washington filer realizes $400,000 of long-term capital gain during the year: $300,000 inside a traditional IRA (from rebalancing the account) and $100,000 in a taxable brokerage account. Retirement-account gains are fully exempt under RCW 82.87.050(1)(c).

Total LTCG: $400,000
Exempt gain (retirement account): $300,000
Washington capital gain: $100,000
Standard deduction: $100,000 (capped at taxable gain)
Taxable base: $0
Washington tax: $0

The $300,000 retirement-account exemption alone drops the Washington capital gain to $100,000 — well under the $270,000 standard deduction — and the tax is $0. This is the standard posture for most Washington retirees: the bulk of capital gain activity happens inside qualified plans, which are exempt, and the residual taxable-account activity is usually below the deduction threshold.

The exemption catalog (RCW 82.87.050)

Gain in any of the following categories is removed from "Washington capital gain" BEFORE the standard deduction is applied:

Real estate. Fully exempt under RCW 82.87.050(1)(a). The single largest exemption in the statute. Includes direct real-property interests, primary residences, rental properties, raw land, and certain look-through entity interests. The reason most Washington homeowners owe $0 under the tax.
Retirement accounts. Fully exempt under RCW 82.87.050(1)(c). Covers IRC § 401, § 403, § 408, § 408A, and § 457 plans — traditional and Roth IRAs, 401(k), 403(b), 457, SEP-IRA, SIMPLE IRA, defined-benefit pensions.
Qualified family-owned small business interests. Exempt under RCW 82.87.070 if the worldwide gross-revenue ceiling (~$10.6M for 2026, inflation-adjusted), the family-ownership test (50%+ owned by family for 5 of preceding 10 years), and the material-participation test (qualifying family member for 5 of preceding 10 years) are all met.
Agricultural assets (51% test). Cattle, horses, and breeding livestock are exempt under RCW 82.87.050(1)(e) IF more than 51% of the taxpayer's gross income for the year of sale AND the two preceding years is from farming or ranching. Hobby farmers with substantial off-farm income generally fail the 51% test.
Timber and timberland (Chapter 84.33). Fully exempt under RCW 82.87.050(1)(g) where the gain is subject to the Forest Excise Tax under RCW Chapter 84.33. The carve-out prevents double-taxation across two excise regimes.
Commercial fishing privileges. Exempt under RCW 82.87.050(1)(h) — limited-entry permits, quota shares, and similar transferable privileges.
Certain trust and estate carve-outs. Specific carve-outs under RCW 82.87.050(1)(b), (f). Fact-specific; consult counsel.

The real-estate exemption is the one that does most of the work in practice. Roughly 9 out of 10 Washington taxpayers who could plausibly worry about the 7% tax discover, after running the exemption analysis, that the tax simply does not reach their fact pattern.

Comparison to other states

Washington's stand-alone capital gains tax is structurally unique. Most state capital gains regimes tax capital gains as ordinary income through the state's progressive income-tax brackets — California's top rate is 13.3% (plus a 1% mental-health surtax above $1M), New York's is 10.9% plus a New York City surtax for residents, New Jersey's is 10.75%, Massachusetts is 5% plus a 4% surtax above $1M (the Fair Share Amendment). In all of those jurisdictions, the capital gains rate moves with the ordinary-income bracket structure.

Washington's 7% flat rate sits in the middle of that range and does NOT move with ordinary income at all — the rate is the same for a $300,000 filer as for a $3 million filer. The trade-off: the standard deduction is much higher than any other state's effective threshold (most state ordinary-income systems begin taxing capital gains at the first dollar of income above a small personal exemption), so Washington filers below the $270,000 threshold pay $0 where filers in CA, NY, NJ, MA pay something.

The federal stack is the same everywhere: 0% / 15% / 20% federal LTCG under IRC § 1(h), plus 3.8% NIIT under IRC § 1411 for high-income filers, on top of whatever the state imposes. A Washington filer in the top federal bracket realizes a maximum effective rate of roughly 20% + 3.8% + 7% = 30.8% on a long-term gain. A California filer in the top brackets faces roughly 20% + 3.8% + 13.3% = 37.1%. A Florida filer faces roughly 20% + 3.8% + 0% = 23.8% (Florida has no state capital gains tax).

Common errors

Treating it as a state income tax. It is not. Washington has no state income tax. The 7% capital gains tax is a stand-alone excise that does not interact with W-2 wages, interest, dividends, rental income, or any other ordinary-income category. You do not file a state income tax return; you file Form 41 0050 only if you have Washington capital gains above the threshold.
Missing the real-estate exemption. Most Washington home sellers reflexively assume any large gain triggers the 7% tax. It does not — real estate gain is fully exempt under RCW 82.87.050(1)(a). The federal IRC § 121 $250K-single-or-$500K-MFJ exclusion does its work on the federal side; the state side simply drops out.
Confusing per-individual with per-couple. The $270,000 standard deduction is per individual. A couple where only one spouse has the gain does NOT get $540,000. Allocating ownership of appreciating capital assets between spouses (where possible without other downsides) is the simplest Washington capital gains planning move.
Assuming retirement gains are taxed. They are not. Gain inside a qualified plan is fully exempt under RCW 82.87.050(1)(c). Rebalancing inside an IRA, even at massive realized-gain dollar amounts, never triggers the 7% tax.

Why it remains controversial

Quinn v. State was decided 7-2 on March 24, 2023, and the U.S. Supreme Court denied certiorari in January 2024. That is the legal end of the road for the constitutional challenge. But the political fight continues — multiple ballot initiatives have sought to repeal the tax (most recently Initiative 2109 in November 2024, which failed at the ballot), and capital gains tax repeal remains a recurring Washington legislative-session topic. For now, the tax is fully in force and the calculator above models the statute as it currently reads. We will refresh the page if the law changes.

How this page is maintained

The RCW Chapter 82.87 framework has been stable since enactment in 2021, with the Quinn v. State decision in 2023 cementing the constitutional posture. The Washington DOR publishes annual inflation-adjustment releases for the standard deduction (RCW 82.87.060) and the qualified charitable deduction cap (RCW 82.87.070); we revisit those figures each year and refresh the calculator with the current statutory values. We monitor session-law activity, Department of Revenue guidance under WAC 458-20-300, and Washington Supreme Court decisions affecting Chapter 82.87.

Last reviewed: 2026-05-15 against RCW Chapter 82.87 and WAC 458-20 (DOR rules).

FAQ

Common questions

Edge cases and clarifications around washington state capital gains tax calculator.

Washington has no state personal income tax. Article VII of the Washington Constitution (the uniformity clause) has been interpreted since the 1930s to prohibit a graduated state income tax — every attempt to enact one has been struck down at the state supreme court. RCW Chapter 82.87, enacted by Senate Bill 5096 in 2021, sits OUTSIDE that framework. The legislature deliberately structured the levy as a 7% excise tax on the privilege of selling a long-term capital asset, not as an income tax on the seller's income. Quinn v. State, 200 Wn.2d 1 (2023), rejected the constitutional challenge and upheld the tax as a valid excise. So when you sell stock at a long-term gain as a Washington resident, you pay 7% of the post-deduction gain to Washington — but Washington never sees your salary, your interest, your dividends, your rental income, or any other ordinary-income category. It is the most narrowly-targeted state capital gains tax in the country.

Resources

Links marked sponsoredmay earn The Fennec Lab a commission. They do not affect the calculator's output. See disclosures.

Washington State Department of Revenue — Capital Gains Tax — DOR landing page — rates, exemptions, filing, FAQ, and Form 41 0050 download
Washington Legislature — RCW Chapter 82.87 (Long-Term Capital Gains Tax) — full statutory text of Chapter 82.87 — definitions, rate, exemptions, deductions, allocation, reporting
Washington Legislature — RCW 82.87.050 (Exemptions) — statutory list of exempt gain categories — real estate, retirement, qualified family business, agricultural, timber, fishing privileges, certain trusts
Washington Legislature — Senate Bill 5096 (2021 enactment) — Session Law 2021 c 196 — the original SB 5096 enactment that established the Washington capital gains tax
Quinn v. State, 200 Wn.2d 1 (2023) — Washington Supreme Court upholds the tax — 2023 Washington Supreme Court opinion rejecting the constitutional challenge and upholding the 7% levy as a valid excise tax (not an income tax)
Washington DOR — Form 41 0050 (Capital Gains Tax Return) — Form 41 0050 and instructions — the procedural vehicle for filing Washington capital gains tax
Washington Administrative Code — WAC 458-20-300 (DOR capital gains rules) — WAC Chapter 458-20 (general DOR rules) — implementing regulations for the capital gains tax under WAC 458-20-300 series
Washington Legislature — RCW Chapter 84.33 (Forest Excise Tax) — Forest Excise Tax — the separate excise regime that taxes timber gains and triggers the RCW 82.87.050(1)(g) capital gains tax exemption