you're underestimating Florida's complexity. :-)
the state has a rate, and every county has a surtax rate. the surtax rates are set by the county, and they change often.
new surtaz by county sheets are published every now and then, once or twice a year. here's the latest one:
not all sales are subject to the discretionary surtax. here's the chart to determine which cases apply:
then we have other rules, surtaxes, deductions and more for certain categories of goods - like vending machines, hotels, fuel distributors and on and on.
point is, nobody complies, it's too complicated.
first, it's county based. zip codes and phone numbers aren't. so everything an online merchant collects today, isn't always enough information to determine the delivery county, which is what the tax rate is based on.
second point being, nobody tries to comply, it isn't possible.
i just overpay. i collect the base 6% sales tax, then remit the max rate of the highest county.
most people just use the surtax of their own address.
remember what a spanking machine is... childhood memories... every time i fill out the form, i want to grab our politicians and line them up to go thru a spanking machine made up of every accountant, website operator, and store owner in the state.
compliance is not possible, everyone knows it, and nothing changes. such is govt.