Price Input Helper - Entering Price With Tax Included

This is version for Opencart 1.5.x.

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

Calculates and automatically update product base price, when final price (usually price with tax) is entered.

Time saver for those, who need calculate price without tax manually for each product, or want to chage the price by some multiplyer.

  • Additional price input field is added on product edit page where final price can be entered.
  • Product price is automatically calculated based on the multiplyer.
  • Multiplyer can be manually defined or automatically calculated based on product tax class and store location.
  • The operation can be performed also the other way around - enter product price and the helper will show you the modified price.
  • helper field available in all places where the price input is done: ✔product price, ✔options prices, ✔discounts prices, ✔special prices
  • possibility to edit and save the price modifyer (or myltiplyer) in the module settings.
  • calculated price is automatically rounded to 4 rounding digits
  • does not overwrite any file at installation
  • install and uninstall completely if needed.

Tested on Opencart,,,,, 1.5.6 unchanged admin template. Should work on other 1.5.x versions. Feed back welcome.

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


Edit any product to see in action

Technical support

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Other possible applications of extension:
  • if you want to enter (or see) the price in other than store default currency
  • if you want the prices be rounded to integer value after tax is applied
  • if your source prices are with VAT and you want automatically them converted to price without VAT
  • if you know your cost of you product and automatically calculate the price by multiplying with some number.
  • show another price along the product price in product list in admin.
  • your feedback on how you use is welcome…

Possible(*) new features
  • ability to disable helper for some areas (options, discounts, prices)
  • ability to have more than one multiplyer
  • which can be selected on the product edit page during product edit
  • use price helper field to enter multiplyer (not price) and the new price will be displayed.
  • ability to select colors for fonts
  • subtract and add
  • [*]… more ideas from you

    (*) Future feature development is based on your votes/comments. I’ll continue the development if the average rating will be 5 stars :).

    Keywords: price with tax, price with vat, without tax, without vat, second price, alternate price, admin tool, efficiency, productivity, inline calculation


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


    1.5.4,,, 1.5.6,,,,

    Last Update
    9 Aug 2017

    25 Jun 2012
    104 Sales
    Member since: 9 Jan 2011

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