Licence terms
Last updated 9 November 2026.
Software licence
GSTLayer and GSTLayer Pro are licensed under the GNU General Public License, version 2 or later. You may run, study, modify and redistribute the code under that licence. Third-party components keep their own compatible licences (dompdf LGPL-2.1, plugin-update-checker MIT, DejaVu fonts Bitstream Vera licence).
What you buy
A Pro purchase buys a licence key that gives, for one year from purchase: automatic updates of GSTLayer Pro delivered to the number of live sites stated on the product (1 or 5), and email support for those sites. It does not restrict what the software does; Pro features keep working on sites whose key has expired.
Sites and activations
One activation is one live site (domain). You can deactivate a site from its WooCommerce → Settings → GST → Licence screen to move the seat. Development and staging copies of a licensed site may be activated on request without buying extra seats. Sharing or reselling keys is not permitted.
Renewal
Licences renew yearly at the then-current price. We send two reminder emails, about 30 days and about 7 days before a licence expires. No automatic charges are taken; you renew by placing a new order, which gives you a new key valid for one year from the day you order.
Support
Support covers installing, configuring and using GSTLayer, and bugs in it. It does not cover customising your theme, third-party plugin conflicts beyond diagnosis, or tax advice. We answer within two business days (India time).
No tax advice; no warranty
GSTLayer applies GST rules as documented. You remain responsible for your tax settings, HSN codes and returns; confirm them with your chartered accountant. The software is provided without warranty to the extent permitted by law, as stated in the GPL.
Seller
GSTLayer is made and sold by Jasmeet Saini, Chandigarh, India. Contact: contact page.