Marijuana may be illegal on a federal level, but you’ve still got to pay your taxes. “Remember what got Al Capone,” said Jim Marty, a certified public accountant in Colorado.

On Thursday, an advisory council for the IRS recommended that tax professionals who help state-recognized, legal marijuana businesses “will not be considered unethical, will not be targeted for audit,” or otherwise penalized simply because pot is illegal under federal law.

Read more: Accountants exhale after IRS takes stand on pot | CNBC