Work out passport expiry reminder instantly with clear inputs, formula shown and shareable results.
Many countries require six months of passport validity beyond the date of entry, so an expiry date well in the future can still be refused. A passport expiring 12 August 2027 has 8.6 months left on 20 November 2026 - sufficient for a six month rule, but it would fail from mid-February 2027 onwards.
Validity at travel
months = (expiry - travel date) / 30.4375
Renewal deadline
renew by = expiry - required validity
So that a traveller who overstays or is delayed still holds a valid document, avoiding the consular burden of an expired-passport case.
Some countries add up to nine months of remaining validity to the new passport; others do not. Check before renewing early.