Washington doesn't have an income tax, so you're getting money back from something else

Washington State has no income tax. If you received a refund check or notice from the state, it is not from income tax withholding. The money is coming from one of a few other sources: the Working Families Tax Credit, the Capital Gains Tax, an overpayment on a different tax, or a correction to a prior year's return.

The most common reason is the Working Families Tax Credit, a refundable credit for households earning between roughly $27,000 and $68,000 per year (the exact range changes annually). If you worked during the year and your income falls in that range, you may be owed a credit that results in a refund even if you owe no other tax.

The second most common reason is the Capital Gains Tax, which Washington collects on the sale of long-term investments like stocks or real estate. If you sold an investment and the state withheld tax at the time of sale, you may be may have access to to a refund or credit depending on your total capital gains for the year.

Key Takeaways

  • Washington has no income tax, so a state refund comes from the Working Families Tax Credit, the Capital Gains Tax, an overpayment on another tax, or a correction to a prior return.
  • The Working Families Tax Credit is refundable and goes to working households earning between roughly $27,000 and $68,000 per year, with the exact income limits changing each tax year.
  • If you sold stocks, real estate, or other long-term investments, Washington may have withheld capital gains tax and you could be owed a refund or credit.
  • Check the notice that came with your refund to see which tax or credit generated the money, as the reason determines whether you need to take any action.

The Working Families Tax Credit is the most common source

The Working Families Tax Credit is a state-level credit designed to reduce the tax burden on lower- and middle-income workers. You do not need to file a separate form or take special steps to claim it—the Department of Revenue calculates it when you file your state tax return, or even if you do not file at all.

The credit is refundable, meaning the state will send you money if the credit is larger than any tax you owe. For the 2024 tax year, the credit ranges from a few hundred to over $1,200 depending on your filing status and income. If you worked and earned wages or self-employment income within the may have access to range, you are likely receiving a refund because of this credit.

You do not have to do anything to receive the refund. The state processes it automatically once your return is filed or once the filing important date passes. If you have not filed a return and believe you are owed the credit, you can file a return with the Department of Revenue to claim it, though the state may also send the money without a filed return if it has wage records from your employer.

Capital Gains Tax withholding and refunds work differently

Washington's Capital Gains Tax applies to the sale of long-term capital assets—primarily stocks, bonds, and real estate held for more than one year. The tax rate is 7 percent on gains above $250,000 per year for individuals.

When you sell an investment, the broker or seller may withhold tax at the time of sale. If your total capital gains for the year fall below the $250,000 threshold, or if you withheld more than you owe, the state will refund the difference. The refund appears on your state tax return or as a separate notice from the Department of Revenue.

If you sold real estate, the title company or closing agent typically handles the withholding and reports it to the state. Check your closing statement to see how much was withheld. If you received a refund notice related to a property sale, it means the state calculated that you owed less capital gains tax than was withheld, or that your gains fell below the taxable threshold.

Overpayments on other state taxes can also trigger refunds

Washington collects several taxes beyond income and capital gains: sales tax, property tax, and business-related taxes. If you overpaid any of these during the year—for example, if you paid estimated sales tax and later received a credit, or if you made an error on a prior return—the state may refund the difference.

Overpayments can also happen if you filed an amended return or if the state corrected an error on your behalf. The notice that came with your refund should specify which tax or year generated the refund. If the notice is unclear, contact the Department of Revenue directly with your refund check number or notice number.

Prior-year corrections and amended returns generate refunds too

If you filed a return in a previous year and the state later discovered an error—either in your favor or in theirs—they may issue a refund to correct it. This can happen months or even years after the original return was filed. The notice will usually reference the tax year that was corrected.

You may also have filed an amended return yourself to claim a credit or deduction you missed. Once the state processes the amended return, any additional refund owed will be sent to you. Amended returns typically take longer to process than original returns, so a refund from an amended return may arrive several months after you filed it.

How to verify what generated your refund

The notice or letter that came with your refund should state the reason. Look for language like "Working Families Tax Credit," "Capital Gains Tax," "overpayment," or "amended return." The notice will also show the tax year and the amount of the refund.

If you received a check without a notice, or if the notice is unclear, log into your account on the Washington Department of Revenue website using your Social Security number or business ID. Your account will show all refunds issued in your name, the amounts, and the tax types involved.

If you still cannot determine the source, call the Department of Revenue at 360-705-6705. Have your refund check number, the amount, and the date you received it ready. The department can tell you exactly which tax or credit generated the refund in a few minutes.

What to do if you did not expect a refund

If you received a refund you did not expect, do not assume it is an error. Washington's Working Families Tax Credit is automatic and many people are unaware they may have access to. Similarly, if you sold an investment and forgot about the withholding, a refund months later can feel surprising.

Cash the check or accept the refund. If the amount seems wrong or you believe the refund was issued in error, contact the Department of Revenue with your notice number. Do not ignore the refund or assume you need to return it unless the state explicitly asks you to do so in writing.

If you received a refund for a year you did not file a return, the state likely issued it based on wage records from your employer or investment records from a broker. This is normal and you do not need to file a return unless you want to claim additional credits or deductions.

Frequently Asked Questions

Can I get a refund if I did not file a Washington tax return?

Yes. The state can issue a refund based on wage records from your employer or investment records from a broker, even without a filed return. This is most common for the Working Families Tax Credit. If you want to claim additional credits or deductions, you can file a return, but you are not required to in order to receive the refund.

What if I owe money to Washington and they sent me a refund instead?

Contact the Department of Revenue when ready. Provide your refund check number and the amount. The state may have applied the refund to a debt you owe, or there may be a mismatch in their records. The department can clarify what happened and adjust your account if needed.

How long does it take to receive a Washington tax refund?

Refunds typically arrive within four to six weeks of being issued. If you filed electronically, the refund may arrive faster. If you filed on paper, allow additional time for processing. Check your refund status on the Department of Revenue website using your Social Security number.

Do I have to report a Washington tax refund as income?

No. A refund of taxes you overpaid is not income. The Working Families Tax Credit and Capital Gains Tax refunds are also not reported as income on your federal return. They are adjustments to tax you already paid or credits you already earned.

What if I received a refund but I think it went to the wrong person?

Contact the Department of Revenue with the refund check number and amount. If the check was mailed to you but has a different name, do not cash it. The state can issue a corrected refund to the right person. If you already cashed it, the state will work with you to resolve the error.