Contact a Certified Service Provider (CSP) to discuss the services they provide under their contract with the Streamlined Sales Tax Governing Board. If you choose to contract with a CSP, the CSP will register your business for you.
The CSP will provide the software and services necessary to:
Set-up and integrate its Certified Automated System (CAS) with your system;
Calculate the tax due on a transaction at the time of the sale;
Prepare and file the required returns;
Make the necessary remittances;
Respond to and provide supporting documentation with respect to sales and use tax notices and audits; and
Protect the privacy of tax information it obtains for that state.
Who can use a CSP: Any seller registered through the Streamlined Registration system. The CSP will provide services for all Streamlined States you are registered for through the SSTRS.
Cost: Under the CSP contract, the CSP will not charge you for these services provided for the Streamlined States in which you are a “volunteer seller.” (Do you qualify for Free Services?) That means you will not be charged for CSP services in states in which you meet the terms of a volunteer seller.
A CSP may charge for services in states in which you are not a Volunteer Seller and for services beyond the services required by the CSP contract.
Not a "Volunteer Seller": CSPs provide services to all types of sellers and may provide services in states that are not Streamlined States.