The POS figures it out because it likely has a subscription to a sales tax calculation service like Avalara. US sales taxes are frightfully complicated and chan

The POS figures it out because it likely has a subscription to a sales tax calculation service like Avalara. US sales taxes are frightfully complicated and change constantly, compliance is not optional, and ignorance is no excuse. Local/state politicians can raise or lower taxes on all sorts of products with conditions attached for fun / electability. www.accuratetax.com/blog/top-10-weirdest-sales-tax-laws/