I'm getting threat letters from the Department of Revenue saying that I failed to file a personal property tax PT100 form. I did my taxes here - what do I do?

You are posting from TurboTax Live.  You can arrange for the Live help you are paying the extra fee for with your questions from  5 a.m. to 5 p.m. Pacific time Monday - Friday.

https://ttlc.intuit.com/questions/4124827-how-do-i-connect-with-a-tax-expert-in-turbotax-live

What tax year are the letters about?  If they are for tax year 2018 you may get help from "Live" if that is what you used to prepare your 2018 return.  But "Live" will not help you with a past year problem.  What state is this for?  TurboTax does not get any information from your state after you file your return, so no one at TT knows about the letter(s) your state sent.  Your proof of payment of that tax would be your own bank/credit card records.  Do you have records to show that you paid?

Thanks, Critter.

2018.  And I did use "Live".  It's for SC.  And I just claimed the standarad deductions. State is saying I failed to fill out a PT100 form.  I had know idea what this was/is and no one asked me to fill it out.  Just sent the threat letters to introduce me to the issue.

Form PT-100 is for Business Personal Property Tax, not income tax. It is not part of your income tax return. It has to be filed separately. Form PT-100 is not included in TurboTax.

Go to the following link on the South Carolina Department of Revenue web site for information about Business Personal Property Tax.

Business Personal Property

Thanks. Good to know.  Out of curiosity, are there other forms I'm supposed to fill out?  And if so, how is one to know? Wait for the letters to come in?

Thanks so much.

Bryan

You should consult a local accountant or tax professional about the Business Personal Property Tax and other tax obligations for your business.