New York sales tax nexus. Do I Need to Register for Sales Tax? (TB-ST-175) Do I Need To Register For Sales Tax? TB-ST-175 New York Code Section 1101(B)(8) New York Source Do I Need To Register for Sales Tax? New York TB-ST-175 New York New York Code Section 1101(B)(8) making sales in New York State New York you are a New York vendor if tax guidelines