2023 Washington Code 15.08.270 – Basis for estimating the tax

2022 Washington Code 15.08.270 – Basis for estimating the tax

2020 Washington Code 15.08.270 – Basis for estimating the tax

2019 Washington Code 15.08.270 – Basis for estimating the tax

2018 Washington Code 15.08.270 – Basis for estimating the tax

2016 Washington Code 15.08.270 – Basis for estimating the tax

2015 Washington Code 15.08.270 – Basis for estimating the tax

2014 Washington Code 15.08.270 – Basis for estimating the tax

2013 Washington Code 15.08.270 – Basis for estimating the tax

2009 Washington Code 15.08.270 – Basis for estimating the tax