> And if you can do that, then you might as well print it on the price tag (along with pre-tax price if you want).

Fun fact: sales tax rates are not stable. Our state publishes quarterly tax changes at the county level; city-level changes are presumably too numerous for the state to publish in the same format.

Inclusive pricing can obviously be done in-store, but it also more or less ensures that some of the items in your store will have incorrect prices some of the time.