What is Washington Sales Tax Calculator?
Washington Sales Tax Calculator — The Washington sales tax is a consumption tax of 6.5% levied by the state on retail purchases, with local jurisdictions adding up to roughly 4.1% more (maximum combined 10.6%).
This page calculates Washington sales tax with the same rate table the main calculator uses: 6.5% state base rate, plus local rates that can add up to roughly 4.1% depending on the city and county — a maximum combined rate of 10.6%. The table below precomputes common purchase amounts at both the state-only and maximum combined rates; the calculator handles any amount, including reverse calculations ("price included tax — how much was the tax?").