How to start an iCloud backup right now
Open Settings on your iPhone, tap your name at the top, then tap iCloud. Scroll down and tap iCloud Backup. Toggle the switch to on — it will turn green. Your phone will start backing up immediately if you are connected to Wi-Fi and plugged in or on battery above 20 percent. The first backup takes longer, sometimes 30 minutes or more depending on how much data you have. After that, backups happen automatically whenever your phone meets those three conditions: Wi-Fi connection, power, and screen locked.
You do not need to do anything else. Once iCloud Backup is on, your phone backs itself up without you opening Settings again. You will see a timestamp at the bottom of that iCloud Backup screen showing when the last backup finished. If you see a date from weeks ago, your phone probably has not met all three conditions since then — plug it in overnight on Wi-Fi and it will catch up.
Key Takeaways
- iCloud Backup requires Wi-Fi, power, and a locked screen — all three must be true at the same time for a backup to run.
- Your first backup can take 30 minutes or longer, but after that backups happen automatically in the background.
- Every iPhone comes with 5 GB of free iCloud storage, which covers most backups unless you have thousands of photos or videos.
- If your backup keeps failing, check that you are signed into iCloud with an Apple ID and that your Wi-Fi connection is stable.
- Backups include your settings, messages, photos, app data, and health information — but not apps themselves, which reinstall from the App Store.
What gets backed up and what does not
iCloud Backup saves your settings, text messages, call history, notes, reminders, calendar events, photos and videos in the Photos app, health and fitness data, Siri shortcuts, and the data inside your apps. It does not back up the apps themselves — when you restore from a backup, the apps reinstall from the App Store automatically, but you need an internet connection for that to work.
Photos and videos take up the most space in a backup. If you have thousands of photos, you may run out of your free 5 GB quickly. You can check how much backup space you are using by going to Settings, tapping your name, tapping iCloud, and tapping Manage Storage. If the backup is larger than your available space, iCloud will not complete the backup until you either delete photos, buy more storage, or turn off Photos in the iCloud Backup settings.
Understanding iCloud storage and when you need to pay
Every Apple ID comes with 5 GB of free iCloud storage. This covers backups for most people, especially if you do not store thousands of photos in the Photos app. If your backup is larger than 5 GB, you have two choices: delete some data from your phone, or pay for more storage.
Apple sells additional storage in tiers: 50 GB for $0.99 per month, 200 GB for $2.99 per month, and 2 TB for $9.99 per month. The 50 GB tier is enough for most people. When you buy storage, it applies to your entire Apple ID, so it covers iCloud Backup, Photos, Mail, and anything else you store in iCloud. You can cancel anytime and go back to 5 GB free storage — your backup will still exist, but new backups will not run until you delete enough data to fit in 5 GB again.
Checking backup status and fixing common problems
To see whether your backup is working, go to Settings, tap your name, tap iCloud, tap iCloud Backup, and look at the timestamp next to "Last Backup". If it shows today's date, your backup is current. If it shows a date from weeks ago, your phone has not backed up since then.
The most common reason backups fail is that your phone is not meeting all three conditions at once. Plug your iPhone into power, connect to Wi-Fi, and lock the screen. Leave it that way for at least an hour. If the timestamp still does not update, check that you are signed into iCloud by going to Settings, tapping your name, and confirming your Apple ID appears at the top. If you see "iCloud Backup is unavailable", sign out and sign back in with your Apple ID password.
If your backup is larger than your available storage, you will see a message saying "Not Enough Storage". Delete some photos or videos from your phone, or buy more iCloud storage. After you free up space, your phone will try to back up again the next time it is plugged in, on Wi-Fi, and locked.
Restoring from an iCloud backup on a new phone
When you set up a new iPhone, the setup screen will ask whether you want to restore from an iCloud backup. Sign in with the same Apple ID you used on your old phone, and choose the backup you want to restore. The phone will download your settings, messages, photos, app data, and everything else from that backup. Apps will reinstall from the App Store automatically — this takes time depending on how many apps you have and your internet speed.
You do not need your old phone to restore from iCloud. As long as you know your Apple ID and password, you can restore to any iPhone. The restore process can take an hour or more if you have a lot of data. Keep the phone plugged in and on Wi-Fi until it finishes.
Manually backing up when you cannot wait for automatic backups
If you are about to sell your phone, travel without Wi-Fi, or make a big change to your data, you can force a backup right now instead of waiting for the automatic schedule. Go to Settings, tap your name, tap iCloud, tap iCloud Backup, and tap "Back Up Now". Your phone will start backing up immediately — you do not need to plug it in or lock the screen for a manual backup, though it will work faster if you do.
The backup will run in the background while you use your phone. You can check progress by going back to the iCloud Backup screen — it will show "Backing up..." and a progress indicator. Do not turn off Wi-Fi or force-close Settings while the backup is running, or it may stop partway through.
Turning off iCloud Backup and what happens to your data
If you turn off iCloud Backup by toggling the switch to off in Settings, your phone stops creating new backups. Your existing backup stays in iCloud for 180 days, then Apple deletes it. You can turn iCloud Backup back on anytime and start backing up again — your phone will create a new backup the next time it is plugged in, on Wi-Fi, and locked.
Turning off iCloud Backup does not delete anything from your phone. Your photos, messages, and apps stay on your device. You just lose the safety net of a backup in iCloud, so if your phone is lost, stolen, or damaged, you cannot restore your data to a new phone.
Frequently Asked Questions
Does iCloud Backup back up my photos?
Yes, photos and videos in the Photos app are included in iCloud Backup. However, they also count toward your storage limit. If you want to back up photos without using backup storage, you can turn on iCloud Photos separately — it stores photos in a different part of iCloud and uses different storage limits.
Can I back up my iPhone without Wi-Fi?
Automatic iCloud Backups require Wi-Fi. However, you can manually back up over a cellular connection by going to Settings, tapping your name, tapping iCloud, tapping iCloud Backup, and tapping "Back Up Now" while on cellular data. This uses your phone's data plan and may be slow, so Wi-Fi is recommended.
What happens if I do not have enough iCloud storage?
Your backup will not complete until you free up space or buy more storage. Delete some photos or videos from your phone, or purchase additional iCloud storage. After you make space, your phone will try to back up again the next time it is plugged in, on Wi-Fi, and locked.
Can I back up to iCloud and also use a computer backup?
Yes. You can back up to iCloud and also connect your iPhone to a Mac or PC and create a backup in Finder or iTunes. Having two backups gives you more protection in case one fails. The backups are separate and do not interfere with each other.
How long does it take to restore from an iCloud backup?
Restore time depends on how much data you have and your internet speed. A small backup might take 15 minutes, while a large one with thousands of photos can take an hour or more. Keep the phone plugged in and on Wi-Fi until the restore finishes.