Upvote:1
The point of expiring passports is to limit the period within which an invalid passport appears to be valid, and to keep your photo from getting too out-of-date. It’s not so that the government can collect a regular “passport rent”. So the expiration date is based on when the passport was issued, not on how long you’ve been using passports.
Upvote:3
The other answer explains the most common procedure but there have been exceptions.
Until 2018, the UK allowed you to renew early and get a passport valid for 10 years from the expiry date of the previous passport rather than the issue date of the new one. There was a limit to how early you could renew but up to 10 years and 9 months was possible.
This caused problems for travel to the EU after Brexit as the EU only accepts passports issued less than 10 years ago. This caused a lot of confusion. The rule was not introduced because of Brexit, it already existed, but it did not apply to the UK while it was in the EU.
The practice ended in 2018 but passports of this type are still in circulation.
More details here: https://www.independent.co.uk/travel/europe/renew-passport-eu-expiration-rules-travel-b2274569.html
A similar rule applies to the annual vehicle safety test called the MOT. You may get your vehicle tested up to one month before the expiry of the current certificate and the new certificate will expire a year after the expiry of the previous one. This is still in effect and is better known.
Upvote:4
This is the right behavior. The passport validity is usually fixed number of years starting from the day of renewal. Depends on country,age and passport type, passport validity can differ.
For instance, my passport is expiring on 1/08/2023. I choose to renew it on 1/03/2023. Then my expiry will be 1/03/2033, not 1/08/2033. (Dates in DD/MM/YYYY).