The state levies a 17 percent excise tax on cannabis sales that is paid by consumers and remitted by retailers. Local governments are also allowed to levy up to a 3 percent tax on the retail price. Legal sales began in October 2015.
OLCC-licensed marijuana retailers are required to charge a retail sales tax of 17 percent for all recreational marijuana sold. In some cases, retailers must also charge customers an additional 3 percent for Oregon localities. The Oregon Department of Revenue is collecting local marijuana taxes on behalf of many cities and counties. Read more about local taxes.
https://www.oregon.gov/DOR/programs/businesses/Pages/marijuana.aspx