Will I receive a tax ID number for each state?
Answer: A Streamlined Sales Tax ID (SSTID) is issued when you submit your registration through the SSTRS. That number is a 9-character ID starting with a "S." You may use your SSTID for communications with Streamlined and all member states.
Some member states will use the SSTID for filing of returns, others will provide you with a state issued number to use. Each state should let you know what your reporting requirements are.