You can thank the Supreme Court. Not PSA’s fault. Besides, this is a 3 year old rule now…
In its June 2018 ruling, the Supreme Court held that states had the authority to make online retailers collect sales taxes even if they didn’t maintain a store, warehouse or other physical presence. Before the decision, consumers were supposed to pay what is known as use tax on out-of-state purchases, but most didn’t. The decision came in a lawsuit filed by South Dakota against home-furnishings retailer Wayfair Inc. and other online sellers.