Domain expiry problems are usually caused by missed reminders, old payment details, or confusion over who controls the registrar account.
Document Ownership
Record the registrar, login email, account owner, and renewal date. Do not leave domain access tied to one person's memory.
Keep Payment Details Current
Auto-renewal only helps if the payment method works. Review saved payment methods before renewal season.
Watch Important Mailboxes
Renewal notices go to account contacts. Make sure those inboxes are monitored.
Renew Early
There is no benefit in waiting until the last day for a domain you intend to keep.
Domain renewal is simple administration, but the consequences of missing it can be severe.