Will High Marijuana Taxes Encourage Black Markets?

But as it turns out, actually figuring out an appropriate marijuana tax policy is more complicated than it sounds. The cannabis industry is an easy target for legislatures to saddle with heavy taxes. In Washington State for instance, there is a 25% tax at three different stages of cannabis production: from the grower to the processor, from the processor to the retailer, and the retailer to the customer. These taxes are in addition to any other state or local sales taxes that might apply.