Please, check the value of 'sales tax' in other sources to ensure that it is the correct value. Reverse sales tax calculator of new york city. Sales Tax Reverse Calculator Internal Revenue Code Simplified We have reverse sales tax calculators that can aid in pricing, allowing you to price your products in a way that even the stingiest of customers won’t complain. Reverse sales tax calculator ny . There are times when you may want to find out the original price of the items you’ve purchased before tax. Divide the sales tax percentage by 100 (or move the decimal point two places to the left) to get the decimal equivalent of the rate. The state as a whole has a progressive income tax that ranges from 4.00% to 8.82%, depending on an employee’s income level. Each state with a sales tax has a statewide sales tax rate. Also, check the sales tax rates in different states of the u.s., understand the forms of sales taxes used in different regions of the world, or explore hu...