What is a voluntary seller?
A Voluntary Seller is any seller who registers with SST states though they may not have reached the sales tax threshold in all member states.*
This means that sellers will collect sales tax in all 24-SST states + PA and TaxCloud will file and remit in those states each month.
*Pennsylvania is not an SST state. Since PA has similar CSP (certified service provider) policy, they are considered an SST state for filing purposes.