KRA has recently migrated their system from ITMS to iTax. This is part of system upgrade that needed to be done in order to improve accessibility, efficiency and effectiveness on its services to allow more taxpayers to register their PIN and also to make returns online. Watch this video by KRA that contains an online user guide on how any Kenyan taxpayer can register on iTax via the iPage facility. The video also highlights the benefits of the iTax system.
You can access iTax system through the KRA Portal