This is the total of state, county, and city sales tax rates. If you make an isolated or "one-off" sale you are not considered to be "in business" for VAT purposes.This bulletin explains the sales tax filing requirements for quarterly, partquarterly (monthly), and annual filers, including the Efile mandate. If you are not registered for GST, make purchase order which will show all prices as GSTinclusive and make no mention of GST. Goods exported to customers abroad are classified as exempt from VAT or zero rated. If you sell your own goods only online , then requirement of GST registration depends on your turnover in a year. If you make an isolated or "one-off" sale you are not considered to be "in business" for VAT purposes. If you sell your own goods only online , then requirement of GST registration depends on your turnover in a year. How this tax is applied depends on the specific goods or service. USA to face India in emotional Group A clash at Nassau County International Cricket Stadium.