Free iSeries Sales Tax Calculator Software

  • Fully self contained iSeries resident system
  • API makes integration into existing systems simple
  • Cost effective alternative to Avalara and Vertex
  • Ready for South Dakota v. Wayfair
  • Ready for the Marketplace Fairness Act
  • Computes and records taxes separately for each authority
  • Date specific tax tables computes rates based on date of sale
  • Product and service specific rates where applicable
  • Compiles remittances for all collected taxes
  • Monthly, quarterly, yearly remittance scheduling by authority

See for yourself. Enter a location and and an amount and click submit. Your request will be processed on our iSeries using the same API that you can call from your sales and invoicing programs.

Location (City,St)
or Zip Code
Amount of purchase
Product Category or UNSPSC
code **
  Code Lookup

** UNSPSC is an international product and services coding system devloped by the United Nations Development Programme (UNDP) and used by the tax calculator to identify taxable and non-taxable products and services. A built-in conversion table allows you to reference UNSPSC codes using your existing billing codes.

Click here to lookup UNSPSC codes.


In addition to sales tax, the tax calculator can be used to compute and report other consumer taxes such as food and beverage tax, lodging tax, rental tax, network access tax, fuel/alcohol/tobacco excise tax, etc. The multi-national support built into the tax calculator makes it possible to extend tax calculations and reporting anywhere in the world.

Click here for more technical information about the tax calculator.

           ____________________________________________ can help you with with the integration of the tax calculator into your systems. Programming services are available at our standard hourly rates. However, phone support is free for licensed users with a current maintenance agreement.