Leafly:  “The sweeping tax bill passed by the US Senate over the weekend contains all sorts of giveaways to businesses, from generous write-offs for factories and equipment to bargain-basement rates on offshore tax havens. But for all the boons to business it provides, the bill fails to deliver commonsense tax reform to the cannabis industry.  Two separate proposed amendments to the Senate tax bill would have ended a decades-old penalty that currently treats state-legal cannabis businesses like drug cartels. The rule, IRS Section 280E, prevents cannabis businesses from taking tax deductions available to other industries, often pushing their effective tax rates to more than 70%.