Cannabis tax rates by state range from no state excise tax in a few medical-only markets to a combined effective rate above 40% in Washington and Illinois. Most legal states stack three charges: a general sales tax, a cannabis-specific excise tax, and an optional local add-on. The exact rate depends on product type, THC content, county, and city, so two shops a few miles apart can differ by 5 to 10 percentage points on the same item.
The Three Layers Behind Every Receipt
Almost every legal state builds its cannabis tax from the same parts. Knowing the layers helps you predict the final price instead of guessing at the register.
- Sales tax: The same tax applied to most goods, typically 4% to 8% at the state level.
- Excise tax: A cannabis-specific tax, usually 10% to 37%. Some states charge it at retail, some at wholesale, and a few base it on THC milligrams rather than price.
- Local tax: A city or county surcharge, often 1% to 10%, that appears only in certain jurisdictions.
Typical Rate Ranges You Will See
States with a single, simple structure tend to land at the low end. States that layer a high excise tax onto sales tax and local options land at the top.
- Low range (roughly 10% to 20% combined): Examples include Michigan, Maine, and Oregon, where one retail tax carries most of the load.
- Middle range (roughly 20% to 30% combined): Examples include Colorado, Massachusetts, Nevada, and California, which pair a 10% to 15% excise tax with sales tax and local additions.
- High range (roughly 30% to 40% or more): Examples include Washington with a 37% excise tax and Illinois with potency-based rates that reach 25% before sales tax.
Medical patients often pay less. Several states exempt medical cannabis from sales tax, cut the excise rate, or both.
state cannabis tax rates compared
How to Estimate Your Total Cost in One Purchase
- Look up your state's cannabis excise rate on the state revenue department site.
- Add your state sales tax rate. Many states apply it to the pre-excise price, a few apply it to the total.
- Check whether your city or county adds a local cannabis tax, since this varies by address.
- Confirm whether the rate changes by product category, such as flower, concentrate, or edible.
- Apply the combined percentage to the shelf price to get the out-the-door number.
- Add delivery fees, tips, and any card surcharge last, since those are not taxes.
Where Convenience Changes the Math
A tax rate is only part of what you pay. Delivery services, online ordering, and same-day pickup carry their own fees, and those fees are rarely taxed at the cannabis excise rate. A shop with a 25% combined tax rate and a $0 delivery fee can cost less than a shop with a 20% rate and a $12 delivery charge plus tip. Consumers increasingly compare the landed cost of an order, not the sticker price, and that shift pushes retailers to compete on fees, loyalty credit, and pickup speed rather than on tax alone.
What to Verify Before You Buy
Rates change with each legislative session, and local taxes can shift mid-year. Confirm the current excise rate, the local surcharge for your delivery address, and the medical discount before you build a budget around last year's numbers.