They count it as income, but it's money you recovered a small percentage of from selling an item you paid sales tax on to purchase, when you spent the money you'd been taxed on when you earned it to effect that purchase. How the fuck does selling our used shit count as "income?" It is neither Wages, Tips, nor Other Considerations. Even a Retailer only pays taxes on the profits after counting expenses, but this rule counts the entire sales price as Income? Also, the Buyer is already paying State sales tax if applicable. This is Bidenomics at its finest.