Washington Revised Code Title 49. Labor Regulations § 49.46.020. Minimum hourly wage--Paid sick leave

(1)(a) Beginning January 1, 2017, and until January 1, 2018, every employer shall pay to each of his or her employees who has reached the age of eighteen years wages at a rate of not less than eleven dollars per hour.

(b) Beginning January 1, 2018, and until January 1, 2019, every employer shall pay to each of his or her employees who has reached the age of eighteen years wages at a rate of not less than eleven dollars and fifty cents per hour.

(c) Beginning January 1, 2019, and until January 1, 2020, every employer shall pay to each of his or her employees who has reached the age of eighteen years wages at a rate of not less than twelve dollars per hour.

(d) Beginning January 1, 2020, and until January 1, 2021, every employer shall pay to each of his or her employees who has reached the age of eighteen years wages at a rate of not less than thirteen dollars and fifty cents per hour.

(2)(a) Beginning on January 1, 2021, and each following January 1st as set forth under (b) of this subsection, every employer shall pay to each of his or her employees who has reached the age of eighteen years wages at a rate of not less than the amount established under (b) of this subsection.

(b) On September 30, 2020, and on each following September 30th, the department of labor and industries shall calculate an adjusted minimum wage rate to maintain employee purchasing power by increasing the current year's minimum wage rate by the rate of inflation. The adjusted minimum wage rate shall be calculated to the nearest cent using the consumer price index for urban wage earners and clerical workers, CPI-W, or a successor index, for the twelve months prior to each September 1st as calculated by the United States department of labor. Each adjusted minimum wage rate calculated under this subsection (2)(b) takes effect on the following January 1st.