Insights

March 28, 2023

How Do You File a Washington State Capital Gains Tax Return?

In Tax Planning, Wealth Strategy

The 2021 Washington State Legislature passed ESSB 5096 (RCW 82.87) which creates a 7% tax on the sale or exchange of long-term capital assets such as stocks, bonds, business interests, or other investments and tangible assets.  The tax is effective January 1, 2022, and the first payments for tax year 2022 are due on or before April 18, 2023.  CPAs can file this tax return on behalf of their clients if taxpayers grant them access to their Washington State Department of Revenue Capital Gains Account.  Below are some guidelines to help explain this new tax and the recently released steps regarding how to set up a DOR Capital Gains Account.

Who Needs to File?

Only individuals owing capital gains tax are required to file a capital gains tax return, along with a copy of their federal tax return for the same taxable year.

What is the due date for the Washington State Capital Gains Tax Return?

The capital gains tax return is due at the same time as the individual’s federal income tax return.  Individuals who file an extension for their federal income tax return are entitled to the same filing extension for their capital gains tax return.  You will need to file for these extensions separately.  However, a filing extension does not extend the due date for paying the capital gains tax due.

When is the tax payment due?

By April 18, 2023

What is Subject to Tax?

The tax is imposed specifically on long-term gains from the sale or exchange of capital assets.

What is NOT Subject to Tax?

Ordinary income, short-term capital gains, dividends, and interest are all excluded from the tax.  Certain categories of assets are also excluded, most notably real estate (whether held directly or through a privately owned entity).  Other exclusions cover assets held in retirement accounts, tangible property that was used in a trade or business prior to its sale, interests in qualified family-owned small businesses, certain livestock, timber, and commercial fishing privileges.

What Deductions and Exemptions are Available?

An annual standard deduction of $250,000 is available to each individual and married couple (unlike under federal law, married couples are not allowed a higher shared amount).  Spouses who file a joint return for federal income tax must also file jointly for purposes of the Washington capital gains tax.  An additional deduction of up to $100,000 is allowed for charitable contributions in excess of $250,000 to Washington-based nonprofits made by the taxpayer during the year.  The 7% tax rate is applied to capital gains exceeding the deductible amount, with a limited credit available to the extent income or capital gains taxes are paid by the taxpayer to other jurisdictions.

How Do I File a Return?

  1. Sign up for a Secure Access Washington (SAW) account to access the online system, My DOR.
  2. Once signed up and logged in you will need to create a Capital Gains account.
  3. After creating a Capital Gains account, we recommend you give your CPA access to your account in order to prepare and file the return on your behalf.

You can download Illustrated instructions for these three steps.

As always, please reach out to your wealth management team with questions and we will work with your CPA to help navigate this situation.

Insights Tags

Related Articles

athletes

July 24, 2026

The Professional Athlete Blueprint: Taking Ownership of Your Enterprise

What’s in this article: Outline Your “Personal Model” “New Architecture of Athlete Compensation Key Playbook Strategies: Protect and Structure Your Wealth Master the Intangibles & True Team Integration Institutional Guardrails How Coldstream Can Help   Entering the ranks of professional sports represents a historic, life-changing moment of wealth generation. Today’s athletes are stepping into an [...]

Contributions from: Elaina Shemeta, CFP®

June 22, 2026

Pre-Nuptial Agreements – A Women & Wealth Podcast

Pre-nuptial agreements, also called pre-nups or pre-marital agreements, often get a bad rap, but they can be very important for supporting and protecting both individuals and the union. A good pre-nup can be a valuable financial planning tool that helps both parties clarify how their financial lives will be commingled; it can also be critical [...]

Contributions from: Anna Shaw, CFP®

June 12, 2026

From Tip-Off to Legacy: Navigating a New Era of WNBA Wealth

The financial playbook for professional athletes has officially been rewritten. Driven by groundbreaking Collective Bargaining Agreements (CBAs) and massive league expansions (hello Portland Fire!), the WNBA is one area of sports that has entered a historic era of wealth generation. Because an athletic career offers a highly compressed window of peak earning potential, athletes can [...]

Contributions from: Elaina Shemeta, CFP®, Katie Quick, CFP®