Tax calculations are wrong

What to do when taxes don’t add up

If you haven’t configured taxes yet, please see the related articles on setting up taxes in Taxes. If you have set up taxes according to the instructions, but they don’t seem to be working as expected, use the following list as a guide. If you intend to request assistance on the forum, please include the answers to these questions with your support request/inquiry:

  1. What are your store settings for these values in Admin > Configuration > My Store?
    a. Country/Zone
    b. Basis of Product Tax
    c. Basis of Shipping Tax
    d. Display Prices With Tax
    e. Display Prices With Tax-Admin

  1. What Zone Definitions have you created? See Admin > Locations/Taxes > Zones Definitions.

  2. Inside each of those zone definitions, what country/zone combinations have been selected? In Admin > Locations/Taxes > Zones Definitions, click on “Details” button for each zone.

  3. What tax classes do you have? Check Admin > Locations/Taxes > Tax Classes.

  4. What tax rates have you created? Check Admin > Locations/Taxes > Tax Rates.

  5. What tax class have you associated with your products? Check Admin > Catalog > Categories/Products, then click on a product to edit it.

  6. What tax class have you associated with each of your shipping modules? Check Admin > Modules > Shipping.



Still have questions? Use the Search box in the upper right, or try the full list of FAQs. If you can't find it there, head over to the Zen Cart support forum and ask there in the appropriate subforum. In your post, please include your Zen Cart and PHP versions, and a link to your site.

Is there an error or omission on this page? Please post to General Questions on the support forum. Or, if you'd like to open a pull request, just review the guidelines and get started. You can even PR right here.
Last modified October 4, 2020 by Scott C Wilson (90ca81c1).