No, if you renew your license for the same number of devices, any days remaining on your current license will be added on to your new one.
However, if you change the number of devices, your new license term will only begin once your current one has ended. Add your new activation code to your Kaspersky product as normal and your new license will be activated automatically when your current license expires.

If you are having technical issues renewing your Kaspersky product, take a look at the Activation Errors section of the Knowledge Base. We’ve written up solutions for the most common renewal and activation issues.

For all devices

Internet connection required
For correct operation, please install the latest version of Kaspersky Password Manager on all your devices. Mixing the old version and the latest version – on different devices – may cause operating issues.

Supported browsers

Mozilla™ FireFox™ (version 65 or higher) / Mozilla FireFox for OS X
Google Chrome™ (version 70 or higher) / Google Chrome for OS X
Yandex Browser
Microsoft Edge based on Chromium (version 79 or higher)
Safari for OS X

Windows®-based desktops and laptops

150MB free space on the hard drive
Processor: 1GHz or higher
Memory (RAM): 1GB (32-bit) or 2GB (64-bit)
Minimum screen resolution: 1024х768　
Microsoft Windows® 10 Home / Pro / Enterprise
Microsoft Windows 8 & 8.1 / Pro / Enterprise / 8.1 update
Microsoft Windows 7 / Starter / Home Basic & Premium / Professional / Ultimate / Enterprise SP1 or higher

Mac desktops and laptops

350 MB of free space on the hard drive
macOS 10.13 or later

Android smartphones and tablets

80 MB of free space
Android™ 5.0 or higher
Minimum screen resolution: 320 x 480

iPhone and iPad

120 MB of free space
iOS® 12.0 or higher