CM Freeman

Often you are exempt from having to charge state sales tax, but you may need to charge local sales tax. It also depends on where you are selling (may have to charge it at a fair, for instance). http://forrager.com/faq/#sales-tax

Here’s a blog post I wrote about pricing: http://forrager.com/2016/05/the-price-is-wrong/

I do not think that any cottage food law is sophisticated enough to specify bartering transactions as monetary transactions that count against your sales limit. If it were me, I’d only count monetary transactions against the sales limit, and I’d be highly surprised if ignoring bartering transactions were illegal.