“iCloud storage full” — and it’s your teenager’s 4,000 TikTok drafts. Family storage is shared math with no per-person brakes. Here’s the fix order.
The quick answer
Check Settings > Apple Account > iCloud > Manage Storage for the per-member split. The heavy user runs a cleanup pass (usually videos + bursts = half their usage), the family re-runs our iCloud plan calculator, and you upgrade only if the keepers still overflow. Details in buy more iCloud or clean up.
Step 1: Name the hog (nicely)
- Organizer opens the storage breakdown — Photos per member, backups per device.
- Typical pattern: one member holds 60-80% in videos and bursts. Not malice — 4K60 at 400MB/min (video calculator) fills anything.
- That member: biggest-first video triage (shrink 4K guide), one-winner bursts (duplicate guide), screenshots.
What this gives you: often 30-50GB back from one evening — a whole plan tier. What this does not give you: enforcement. No per-member caps exist; check again monthly or the pile returns.
Step 2: Right-size the plan
Post-cleanup, total the keepers: photos (storage calculator) + backups + docs. 200GB ≈ 2-3 light users; 4+ photo-heavy members ≈ 2TB. Family Sharing math in iCloud vs iPhone storage.
The bottom line
Audit, clean the hog, then buy — in that order. Most families discover they needed a cleanup, not a subscription.