Individuals and families are eligible for the Working Families Tax Credit if they meet all of the following requirements for the tax year they're claiming the credit:

  • Have a valid Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN).
  • Lived in Washington a minimum of 183 days (over half the year).
  • Are at least 25 and under 65 years of age OR have a qualifying child.
  • Filed a federal tax return the year before they claim the credit.
  • Eligible to claim the federal Earned Income Tax Credit (EITC) on their tax return (or would meet the requirements for EITC but are filing with an ITIN). ​​​​
  • Meet certain income requirements.