Crypto and Digital Assets Under Washington's 9.9% Income Tax: What You Need to Know

Published on Apr 9, 2026 — 6 min read

ESSB 6346 Tax Planning

Summary

Washington's new 9.9% income tax reaches crypto gains, DeFi income, staking rewards, and NFT sales. If you're a Washington resident with digital assets, here's what you need to know.

By Joe Wallin | April 2026 | ~6 min read

Washington's new income tax reaches cryptocurrency and digital asset gains. If you are a Washington resident with significant crypto holdings, this is something you need to understand — because the interaction between federal reporting rules and Washington's $1 million threshold creates both risks and planning opportunities.

This post is part of our Complete Guide to Washington's New Income Tax.

The Basic Rule: Federal AGI Is the Starting Point

Washington's 9.9% income tax starts with your federal adjusted gross income (AGI). The IRS treats cryptocurrency and digital assets as property, not currency. Every disposal — sale, trade, spend, or exchange — is a taxable event that flows into your federal AGI.

Federal taxable income is only the starting point. Washington applies its own modifications, deductions, sourcing rules, and credits before determining income tax. For crypto, the distinction between ordinary income, short-term gain, and long-term gain matters.

Capital gains from selling or trading crypto. Taxable gain generally equals proceeds less adjusted basis. Short-term gains remain in federal AGI for the Washington income-tax calculation beginning in 2028. Long-term gains pass through the separate §302 calculation described below; they do not automatically enter the Washington income-tax base merely because they appear in federal AGI.

Staking rewards. The IRS treats staking rewards as ordinary income at the time of receipt, valued at fair market value. This income is included in federal AGI in the year you receive the rewards — not when you sell them. If you later sell the staking rewards, any gain above the value at receipt is an additional taxable event.

Mining income. Crypto mining income is treated as self-employment income (if you mine as a business) or ordinary income. It flows into federal AGI.

DeFi yields and liquidity pool rewards. Yield farming income, liquidity provider fees, and other DeFi earnings are taxable as ordinary income when received. Swapping tokens within a DeFi protocol is a taxable disposal of the token you give up.

Airdrops and hard forks. Generally taxable as ordinary income at fair market value when you receive dominion and control over the new tokens.

The common thread: classify the federal income first, then apply Washington’s rules. Beginning in 2028, 9.9% applies to Washington taxable income after the applicable deductions and modifications.

The Volatility Problem

Crypto's volatility creates a specific problem for Washington's income tax. A single large trade — or a bull market year where you take profits — can spike your federal AGI well past the $1 million standard deduction (per individual; spouses share one), triggering a significant Washington tax bill. The next year, your income might be a fraction of that.

Washington’s income tax uses a flat 9.9% rate after the applicable income-tax deduction. The separate capital-gains tax has its own deduction and tiers. A taxpayer who owes no income tax can still owe capital-gains tax.

This makes timing particularly important. Realizing $3 million in crypto gains in a single year produces a very different Washington tax result than realizing $1 million per year over three years.

The Capital Gains Tax Overlap

Washington also imposes a separate capital gains tax on long-term capital gains: 7% on gains above the standard deduction ($250,000 base, indexed annually; $278,000 for tax year 2025), rising to 9.9% on the taxable portion of gain above $1 million. Crypto gains held for more than one year are subject to this tax as well.

Under §302, long-term gains and losses are first removed from federal AGI. In a year the taxpayer owes Washington capital-gains tax, the statute adds back Washington capital gains subject to that tax plus the capital-gains standard deduction. Section 205 then allows a nonrefundable capital-gains-tax credit against the income tax, capped at that income-tax liability. Compute capital-gains tax and income tax after the credit separately, then add the amounts payable. The result is not a uniform 9.9% charge on every long-term gain.

Short-term crypto gains and ordinary crypto income (staking rewards, mining income, DeFi yields, airdrops, hard forks) remain in federal AGI and are subject to the 9.9% income tax above the $1 million threshold. They are not subject to the capital gains tax.

Work with your CPA to model both taxes together.

Planning Strategies for Crypto Holders

Spread disposals across tax years. If you have large unrealized gains, consider selling in tranches rather than all at once. Keeping each year's AGI at or near $1 million — or below it — can dramatically reduce your cumulative Washington tax. This is the same logic as the installment sale strategy, applied to voluntary disposals.

Harvest losses strategically. Federal loss netting and Washington’s long-term-gain modifications must both be modeled. A long-term loss does not directly shelter ordinary staking or mining income in Washington. Loss carryforwards used in the capital-gains computation are subject to Washington allocation rules. Do not assume an immediate repurchase of every digital asset is outside the wash-sale rule: confirm the asset’s classification and the current rules with your adviser.

Time your staking and DeFi activity. If staking rewards and DeFi yields are pushing your Washington taxable income above zero — that is, your federal AGI, after Washington's modifications, past the $1 million standard deduction (per individual; spouses share one) — consider the timing of when you activate or deactivate staking positions. Rewards are taxable when received, so pausing staking in a high-income year can keep you under the deduction.

Compare holding periods. Holding an asset for more than one year can change both its federal rate and its Washington treatment. Short-term gains remain in the income-tax calculation; long-term gains use the capital-gains-tax and §302 rules. Model total tax rather than assume the Washington result is the same.

Consider the PTE election for an eligible entity. The election does not reduce Washington’s 9.9% income-tax rate. A fully deductible $99,000 entity income-tax payment would save $36,630 at a 37% federal marginal rate, leaving $62,370 after that benefit. This assumes unchanged state liability, full owner-credit use, and full federal deductibility with no offsetting effect. See the PTE election guide.

Eligibility depends on the entity’s tax classification and statutory requirements. Section 502(3)(c) expressly includes investment income to the extent included for a participating owner; passive investing is not, by itself, a categorical disqualification. A disregarded single-member LLC raises a different eligibility question. Model the entity’s income, Washington modifications, and owner credits before electing.

Track your basis meticulously. With Form 1099-DA now required from centralized exchanges starting in 2026, the IRS has better visibility into crypto transactions than ever. Accurate basis tracking — including specific identification of lots — allows you to minimize gains by selling highest-basis lots first (specific identification method) or using other permitted accounting methods.

NFTs and Other Digital Assets

NFTs and tokenized assets require asset-specific analysis. A taxable disposal can produce gain or loss federally, and collectible treatment may affect the federal rate. Washington still applies its own long-term-gain modifications and exemptions; a federal collectible classification does not automatically put the gain in the Washington income-tax base.

The classification of specific digital assets is still evolving at the federal level. Washington begins with federal figures but applies its own modifications; a federal collectible classification does not, by itself, determine the Washington tax due.

The Reporting Environment Is Tightening

Starting in 2026, centralized exchanges are required to issue Form 1099-DA to both the IRS and the taxpayer, reporting gross proceeds from crypto disposals. This is a significant change from prior years, when reporting was inconsistent and many taxpayers self-reported (or didn't).

Accurate federal reporting is the starting point for Washington, followed by the state additions, subtractions, deductions, and credits. A federal adjustment can require a corresponding Washington recalculation, but the federal income change is not necessarily the amount taxed by Washington.

The era of informal crypto tax reporting is over. Make sure your records are clean, your basis calculations are defensible, and your CPA understands your full transaction history.

Key Takeaways

Long-term crypto gains can produce Washington capital-gains tax even below the income-tax deduction. From 2028, apply §302 and then the §205 credit to determine the additional income tax, if any. Short-term gains and ordinary crypto income generally remain in the income-tax base. PTE planning concerns a potential federal deduction, not a lower Washington rate. Model all of these rules together.

If you are a Washington resident with significant digital asset holdings, start planning now — before January 1, 2028.

For more on Washington's income tax framework, see our Washington State Taxes guide. For a deeper look at loss harvesting techniques (including the crypto-specific advantage of no wash sale rule), see Tax Loss Harvesting to Manage Washington's $1 Million Threshold.

This post is for informational purposes only and does not constitute legal or tax advice. Consult with a qualified tax professional regarding your specific circumstances.

Washington Tax Planning Guide

Want the full playbook for what to do before 2028?

Written by startup attorney Joe Wallin — domicile strategy, QSBS timing, Roth conversions, trust planning, option exercise windows, and more. Plain English. Practical steps. Instant download.

Get the Tax Planning Guide — $49.99 →