Stamp Duty Calculator Widget

The stamp duty widget allows you to easily calculate the amount of stamp duty land tax due on a freehold residential property. It will display the calculation in a table with a rundown of the different percentages that make up the total amount. There is also the option to specify that it’s a first time buyer, buy-to-let or secondary property which changes the amount of stamp duty due.

Please note, this calculator assumes it’s a freehold residential property, it does not calculate commercial transactions or leasehold properties. The calculator is built upon the residential property rates provided here as of 11/12/2017. The widget is provided as a guide only and users should always seek professional advice from a certified accountant/solicitor.

Your calculation
Please note: This calculator is provided as a guide only on how much stamp duty land tax you will need to pay in England and Northern Ireland. It assumes that the property is freehold and for residential purposes.

Available in three formats:

WordPress plugin

Upload to your WordPress website just like any other plugin. Comes with a number of options to customise things like labels.

HTML/JS/CSS source code

With this option you can control all aspects of the widget, including the text and CSS making it the best option for developers.

Embed code

We'll provide you with a few lines of HTML code to add to your website. This is perfect for if you can't upload files to your website (eg, hosting on Wix). However, with this option, you can't customise the look of the widgets as the files are hosted on our servers.

Please note, a fair-use policy applies for the hosted option of a maximum of 100,000 calculator loads per month for each domain. You will also need to renew your license each year if using this version.
Use on a single domain £25
  • Up to 5 domains £50
  • Up to 25 domains £100
  • More than 25 domains POA

Your purchase includes 1 year of support and updates, and access to all three formats.

After a year, you'll need to purchase a renewal license (50% of the original price) to continue receiving support, updates or if you are using the embed code version.

Want to demo first?

If you'd like to try the widget before you buy, then please
request a demo version here.

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Frequently Asked Questions

Does the calculator get updated when there's a change to the legislation?

We try to update the calculators within 2 weeks of an announcement of a change in the calculation from the government. This is the main reason we charge a yearly license fee so that you have the peace of mind that the calculator will be updated when legislation changes.

Do you provide support?

Purchasing our calculators will give you access to support and updates for one year. We provide basic support to help you get the widget working on your site. For more advanced integrations or changes to the calculator you may need to hire a developer.

Do I need to renew my license?

Your license is valid for one year and it gives you access to support and updates for the number of sites you purchase a license for. We will get in touch with you via email about a month before your license expires with details on how to renew your license. You will need to renew your license to continue receiving support and updates. If you don't renew your license then the WordPress plugin and HTML versions will continue to work with the version you have installed, however if you are using the embed code version then calculators will stop working once your license becomes invalid as these files are hosted on our servers.

Do you offer refunds?

As this is a digital product, refunds are considered on a case-by-case basis. We do provide the calculators prior to purchase to test on your website so please make use of that option by filling out the form here.

Can I test your widget before purchasing?

Yes! We offer the ability to demo our calculators on your website prior to purchase, you just need to fill out the form on this page and we'll send you the relevant code to test.

Can I upgrade my license at a later time?

Yes, if you need to use the widgets on more than one website then you can contact us to upgrade your license at any time.

If you have any other questions, then please do not hesitate to contact us here.