hlfo718 wrote:Maybe sales tax in your state.
I don't think there's typically a sales tax requirement on sales from an individual to an individual.
I would not count on this. Unless you made money on it, I don't think the IRS would be interested. Sales tax might be technically be an issue, however.
Realistically, I think I'd remain ignorant on this if I were you. I don't think states go around investigating and filing suits over $50 lawn mower sales between individuals. You spend a whole lot of time researching this, preparing and filing a return over maybe a $3 tax liability.
It's up to you, though.