You want to to find your Streamlined Sales Tax Program ID (SSTPID)
- Log into Avalara AvaTax
- Click on the Organization tab
- Click on the Company name
- Click Company Settings
- You will see the SSTPID number
Note: The returns for all registered SST states are required to file on a monthly basis, filing a Simplified Electronic Return (SER) under ONE registration ID (SSTID).. Each state will still have specific account numbers, but Avalara does not keep these on file since we do not file under these. If you need the specific state ID, please contact the states individually.