STC provides merchants with the tools to navigate the complicated landscape of calculating sales and use taxes in over 7,000 states, counties, and cities.

Tax Rate Calculation—STC offers three types of service to determine sales taxes:

• Manual—Subscribers may use one of our online calculator, our desktop calculator, or our SalesTaxMobile to calculate sales tax rates and amounts.  Each subscription level is good for up to one year and for up to the number of calculations subscribed, after which time or number of calculations you will be asked to select a new subscription level going forward.  There is no setup fee for the Manual subscriptions—simply select the desired subscription level below after signing up on our web site!

$ 20 per year for up to	150 calculations
$ 30 per year for up to	250 calculations
$ 45 per year for up to	450 calculations
$ 70 per year for up to	800 calculations
$105 per year for up to	1,400 calculations
$160 per year for up to	2,500 calculations
$240 per year for up to	4,500 calculations
$360 per year for up to	8,100 calculations
$540 per year for up to	15,000 calculations
$810 per year for up to	27,000 calculations

• Automated—Merchants wanting to perform automated or programmatic calculations will need to integrate our TaxCalc software interface module that will connect their business system directly to our servers to calculate rates.  The license to use this software module costs $675 and also requires an annual subscription, which starts at $240 per year for up to for up to 4,500 calculations, with expanded subscription levels as follows:

$ 240 per year for up to	4,500 calculations
$ 360 per year for up to	8,100 calculations
$ 540 per year for up to	15,000 calculations
$ 810 per year for up to	27,000 calculations
$1,220 per year for up to	50,000 calculations
$1,830 per year for up to	90,000 calculations
$2,750 per year for up to	160,000 calculations

In either case, the tax rates are calculated in real-time with an SSL connection to our high-speed, secure servers so the results are always 100% current and accurate.


• Sales Tax Data—STC offers regularly updated data files with sales and use tax rates by ZIP code for the entire United States, as follows:
  

  $  850 per year for	four quarterly updates
  $1,270 per year for	twelve monthly updates

  The data format is a simple, fixed-length text file containing ZIP code, state, county, city names, and state, county, city sales and use tax rates. (see data file format, the license agreement, and a sample file)  After subscribing, you will receive periodic notices sent to the email address registered with your account with instructions for where to download the update from our FTP site and the current password to unlock the compressed ZIP file.

The first step is to signup!

Have questions?  Check out our list of Frequently Asked Questions or submit your question.