Today's topic is titled “ How Long Do I Have To Worry About An IRS Audit?” If you are in the cannabis space, you are or should be fully aware that the IRS is making a concerted effort to audit cannabis businesses. Although cannabis sales are still illegal on the federal level, that isn’t stopping the IRS from auditing your business. If your business is set up as a pass-through entity, you can rest assured that they will pull your personal tax return into the audit. Pass-through entities are partnerships, S-corps, and LLC’s.