Q: How do i change the icloud account on my iphone?

Hi RHLemmens.nl,

Welcome to the Support Communities!

The following articles will explain how to change your Apple ID, which is your primary email account.  The first article explains how the Apple ID is used for different services.  Please review the Frequently Asked Questions section of this article before proceeding.

Using your Apple ID for Apple services

http://support.apple.com/kb/HT4895

Apple ID: Changing your Apple ID

http://support.apple.com/kb/HT5621

Apple ID: What to do after you change your Apple ID

http://support.apple.com/kb/HT5796?viewlocale=en_US&locale=en_US

I hope this information helps ....

- Judy