Effective October 1, 2026, Connecticut has replaced its multi-tiered, potency-based cannabis excise tax with a single flat rate of 10.75% of gross receipts on all adult-use cannabis retail sales. Under the prior structure, retailers calculated tax on a per-milligram-of-THC basis across three product categories—flower, edibles, and all other products. The new law collapses all three into one percentage-of-sale…