Collect Sales Tax
Though laws aren’t the same across America state-to-state, areas that do allow sellers to collect sales tax directly almost always require retailers to maintain permits. The reasoning behind this is twofold; that piece of paper tells government officials who are selling and producing income. It also proves to customers that you’re a legitimate seller who has permission to collect sales tax at the same time.
As an example, in the state of California, a seller cannot collect sales tax without a Seller Permit. To do so is effectively illegal. Though some unscrupulous businesses do get away with this by avoiding charging tax altogether, they could face 10 or more years in jail for tax fraud if caught, and many are caught.
All it takes is a single customer to report that you did or didn’t request sales tax to the right authorities, and you could find yourself on the receiving end of criminal charges for tax fraud.