Pet Travel — Important Dates Calculator

The window is counted from the day you enter the EU, not the day you leave home and not the first day of your holiday. On an overnight crossing those can be different dates, and a certificate issued one day too early has expired before you reach the barrier.

It is also the reason you cannot get this done far in advance, however organised you are. The vaccination can be years old; the certificate cannot be more than 10 days old. That is what makes the crossing date the thing worth planning around.

A rabies vaccination does not count the day it is given. GOV.UK counts day 1 as the day after the jab, and you must wait 21 full days from there. A vaccination on 1 March means the earliest you can travel is 22 March.

Read backwards, that is a deadline: for any crossing, the jab has to have happened 21 days earlier. The calculator always shows you that date, because it binds in two cases that look different to an owner and identical at the border — a pet that has never been vaccinated, and one whose vaccination expires before the trip is over. Your own vet does the vaccination, not us.

It has to stay in date until you are back in Great Britain. Not until you leave, and not until you arrive in France — the same certificate carries you home, and a vaccination that has lapsed by then invalidates it. Letting one lapse also means the next is treated as a first vaccination, so the whole 21-day wait starts again.

No Animal Health Certificate can be issued without it. The vet certifying your pet has to see the vaccination record — date, vaccine and batch. There is no version of this that gets sorted at the certificate appointment.

Nothing shortens it. No vet can certify around it, and an unvaccinated pet booked onto a crossing three weeks away is usually already too late once the appointment itself is factored in. This is the date to check first, before anything else is booked.

Dogs — not cats, not ferrets — must be treated by a vet for tapeworm no less than 24 hours and no more than 5 days before arriving back in Great Britain, and it must be recorded.

It is the most commonly missed requirement of the whole trip, because it happens abroad, mid-holiday, after the hard part feels done. Add your return date above and we will tell you the window, and remind you while you are away.

An Animal Health Certificate covers up to 5 pets travelling together, and once you have entered the EU it stays valid for 6 months of onward travel within the EU and for your return to Great Britain.

But it does not cover a second trip. Every new journey from Great Britain to the EU needs a new certificate, issued inside its own 10-day window — which is why this page is worth bookmarking rather than reading once.