In fiscal year 2017, there was over $1.3 billion in legal marijuana sold in Washington State.
In total there was $1,371,882,585.79 in legal marijuana sold in Washington State in fiscal year 2017, which began on July 1st, 2016, and ended on June 30th, 2017. The state garnered $314,838,969.21 in taxes from these sales. All of this is according to data released by the Washington State Liquor and Cannabis Board (WSLCB).
For fiscal year 2016 there was $786 million worth of legal marijuana sold, resulting in $185 million in taxes. In fiscal year 2015, those in Washington State purchased $259 million in marijuana, garnering the state $64.8 million in taxes.