Increasing the working families' tax credit to reflect the economic impact of property taxes incorporated into rental amounts charged to residential tenants.

SB 5771 adds a new $300 annual tax credit for low-income renters in Washington who paid rent for their primary residence (including mobile home lots) for at least 183 days during the year. This credit directly affects eligible individuals who already qualify for the existing Working Families Tax Credit but also face property taxes included in their rent. The credit is calculated based on rental duration (183+ days), adjusted for inflation starting in 2027, and reduces at specific income levels as outlined in the bill. It expands the existing credit program to specifically address the financial impact of property taxes embedded in rental costs.