Price Input Helper 3 - enter prices with tax included

Price Input Helper  3 - enter prices with tax included
Price input helper 3 (Enter price with tax)

This extension is for Opencart 3.x.
If you are looking for version for Opencart 1.5.x, it is here: Price Input Helper for 1.5.x
If you are looking for version for Opencart 2.x, it is here: Price Input Helper for 2.x.x


This OpenCart modification allows e-commerce store owner to input prices with tax on product edit form. The price without tax will be automatically calculated and saved with the form. And it does also the other way around if you wish. It knows the product tax from the applied product tax class.

You will not waste your time anymore for calculating the right price separtately on the calculator.



  • possibility to edit and save the price modifyer (or myltiplyer)
  • possibility to auto-detect the tax rate based on product tax class and default store location
  • helper field available in all places where the price input is done:
    ✔product price
    ✔ options prices
    ✔ discounts prices
    ✔ special prices
  • Product list page in admin has additional column with price including tax
  • Extension does not overwrite any OpenCart or theme file.

How it works

This modification adds a helper field next to the price field at all locations where the price input is available. You just enter the price which you want your customers see and the price field will be automatically updated according to the price modifyer (or multiplyer).

Product Price field with helper field - Product page screensot

You can change the modifyer (or multiplyer) in the store administration under System-->Settings-->Edit in Option tab below the Display Prices with Tax entry.

Price Input Helper 2 Configuration page screenshot

Product list page screenshot with additional column for price with tax.

Documentation available here

Submit your request at Issue Tracker or submit it on

What customers say about Price Input Helper 3 - enter prices with tax included

Absolutely must for Opencart !!! Very good Job!
Super and does its job. I don't really know why isn't it a default feature.
Amazing extension, saves so much time by allowing me to enter prices inc VAT, a simple feature you would think would come as standard. Easy to install and fast support too!


  • Developed by OpenCart Partner
  • 12 Months Free Support
  • Documentation Included



Last Update
27 Mar 2021

8 Aug 2017
145 Sales
Member since: 9 Jan 2011

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