@AddyGirl
No problem with asking questions.
In your policy or details about your shop, you can mention that your sales tax is built into your prices.
I don't worry about stating the sales tax in my listings or on my invoices.
Every year I send in my Sales and Use Tax form with a check they are happy.
I am still fairly new here and still adding items to a couple of stores. Now that I see how the additional stores are added, I will need to set up my policies and other items that I would of normally set up in the beginning.
I got so many fires going and not enough fire hoses to put out the fires. LOL