How to upgrade a license key?

Go to your Account page > License keys tab then click on the “View Upgrades” link next to your license key.
How will my upgrade price be calculated?
When upgrading your license you will pay the difference between the cost of your current license and the license you are upgrading to.
Case 1: Upgrade a Polylang Pro license to 3 or 5 or 25 sites.
In the following example we want to upgrade a Polylang Pro license 1 site at 99 € to a Polylang Pro license 3 sites at 198 €:
* the upgrade price will be: 198 € – 99 € = 99 € ex VAT
Case 2: Upgrade a Polylang Pro license to a Polylang Business Pack license.
Here we want to upgrade a upgrade a Polylang Pro license 1 site at 99 € to a Polylang Business Pack license 1 sites at 139 €:
* the upgrade price will be: 139 € – 99 € = 40 € ex VAT
Case 3: Upgrade a Polylang Business Pack license to 3 or 5 or 25 sites.
Here we want to upgrade a Polylang Business Pack license 1 site at 139 € to a 3 sites at 269 €
* the upgrade price will be: 269 € – 139 € = 130 € ex VAT
Note that the Polylang Business Pack is the package containing Polylang Pro and Polylang for WooCommerce. Since they are included in a package, you can not renew or upgrade your Polylang Pro and Polylang for WooCommerce license keys separately. You can only renew or upgrade the complete package.
Should I renew first before upgrading?
Upgrading a license key doesn’t extend its expiration time. Upgrades and renewals are completely disconnected and the order in which you do things is important. It’s indeed cheaper to renew first and upgrade after.
In the case you renew first your Polylang Pro license 1 site and upgrade to 3 sites, the cost will be 49,50 € (renewal cost of a license 1 site) + 99 € (difference cost between 1 site to 3 sites) = 148,50 € ex VAT
In the case you upgrade first your Polylang Pro license 1 site to 3 sites and renew it, the cost will be 99 € (difference cost between 1 site to 3 sites) + 99 € (renewal cost of a license 3 sites) = 198 € ex VAT