Your iCloud Account is basically your Apple ID, which provides access to all iCloud related services and features on your iPhone. Hence, the impact of deleting iCloud Account from iPhone is practically the same as removing your Apple ID.
Luckily, Apple makes this process easy, as it provides the option to select another Email Account as your New Apple ID, as soon as your previous iCloud Account is deleted from iPhone.
This ensures that you can gain access to iCloud Photos, iMessage and other iCloud related services by using your New Apple ID.
Steps to Remove iCloud Account From iPhone
You can follow the steps below to delete your existing iCloud Account from iPhone and switch to a New iCloud Account.
1. Go to Settings > Apple ID > Name, Phone Numbers, Email tab on the Apple ID screen.
2. On the next screen, tap on the Edit option located next to “Contactable” or “REACHABLE AT”.
3. Next, tap on the little – button that appears next to your Apple ID.
4. Select the Delete option that appears.
5. On the pop-up, select Choose Another Email option and tap on Continue.
6. If prompted, enter your current Apple ID Password or verify your identity by answering two Security Questions.
7. On the next screen, enter your New Email Address and tap on Next.
8. Apple will now send a verification code to your New Email Address. Get the verification code by going to your Email Account and enter the Verification Code on the next screen.
Once your Email Address is verified, your New iCloud Account will become active.