If you’re bringing a dog into the UK, the rules that matter are the UK’s own entry rules, set by the Department for Environment, Food and Rural Affairs and the Animal and Plant Health Agency, not the EU’s rules for pets leaving Britain. The two are separate sets of requirements from separate authorities, and mixing them up can throw your timeline off.
Bringing a dog into the UK: microchip and rabies vaccination timing
Your dog needs to be microchipped before, or at the same time as, the rabies vaccination. Get the order wrong and the vaccination doesn’t count; your vet has to do it again. The chip itself should meet ISO standards 11784 and 11785, so that staff on approved travel routes can actually read it with a standard scanner. If your dog’s chip doesn’t meet those standards, you may need to carry your own compatible reader. If nobody can read the chip when you arrive, your dog can be refused entry or quarantined while it’s sorted out, and you’ll have to redo the whole process: rechip, revaccinate, and wait out the 21 days again.
After the rabies vaccination, or the last of the first course of vaccinations, you need to wait at least 21 full days before travelling to Great Britain. Book your flight before checking this date and you can end up with a travel date that falls inside the waiting period, when your dog is not yet allowed to enter Great Britain.
Stacked together, that is the minimum timeline for a dog travelling from the EU or a country the UK lists: microchip on day one (or confirm an existing chip meets ISO standards), rabies vaccination at the same visit or shortly after, the 21-day wait, tapeworm treatment (dogs only) inside the 5 days before you travel, then the travel document itself. The 21-day wait is the one part that doesn’t flex: your travel date cannot fall inside it, and the tapeworm window has to be re-timed whenever the flight moves.
Tapeworm treatment, and who’s actually exempt
Tapeworm treatment applies to dogs only, not to cats or ferrets: a vet must treat your dog no less than 24 hours and no more than 5 days (120 hours) before it arrives in Great Britain. The treatment needs to contain praziquantel, or an equivalent proven effective against the Echinococcus multilocularis tapeworm, and your vet needs to record it on your pet’s travel document.
One exemption applies: dogs travelling directly from Finland, Ireland, Northern Ireland, Malta or Norway don’t need this treatment at all, because those places are recognised as free of the tapeworm in question. Travelling from anywhere else, including most of the EU, the treatment applies. Get the timing wrong, too early or too late, and it’s the same as not having done it.
Which document you actually need
The actual rule is more forgiving than the “Brexit replaced the passport” framing suggests. If you’re travelling from an EU country, your dog needs one of the following, and a valid EU-issued pet passport is still one of them in its own right:
- a pet passport issued in an EU country, or in one of the handful of non-EU places that run on the same scheme;
- an Animal Health Certificate issued in Great Britain within the last six months, which is the route for a dog that left GB and is coming back, not a first-time move;
- a Great Britain pet health certificate, signed by an official vet with authority from their government to issue it and valid for entry within 10 days of being issued, which is what a first-time mover needs if their dog has no EU pet passport and no prior GB-issued document; or
- a pet passport issued in Great Britain before 1 January 2021.
So if you’re relocating from France, Spain, Germany or anywhere else in the EU and your dog already has a current EU pet passport, you very likely don’t need a new document at all for the entry itself, only the microchip, vaccination and tapeworm-treatment steps above.
The Animal Health Certificate and the GB pet health certificate are easy to confuse, and they’re not interchangeable. An AHC has to be issued in Great Britain, which makes it a document for a dog that started in GB and is coming home, not for a first-time arrival. A GB pet health certificate, by contrast, can be issued in any country by an official vet with authority from their government to issue it, and is specifically the document a dog with no prior GB connection and no EU pet passport needs. If your dog has never set paw in the UK before, you almost certainly want the second one, not the first.
If you’re bringing a dog into the UK from somewhere else in the world, the document you need depends on which specific country you’re travelling from. The UK government keeps a country-by-country list; a handful of places (mostly other European microstates and territories that run on the same scheme as the EU) accept a pet passport, but most of the rest of the world needs a Great Britain pet health certificate. Coming from the USA, Canada or Australia, for instance, that certificate is the standard route. Travelling from a country the UK does not list at all adds a rabies blood test, taken at least 30 days after the vaccination, and a three-month wait from the date of the blood sample, on top of everything else above.
Not sure which of these documents applies to your dog’s specific departure country? Ask us on WhatsApp and we’ll help you work out which one you need.
Northern Ireland is not the same as Great Britain here
If you’re travelling from Northern Ireland, the Channel Islands or the Isle of Man into Great Britain, GOV.UK says your dog will not need a pet passport or health certificate, and dogs travelling directly from Northern Ireland are also exempt from the tapeworm treatment. If you’ve moved to Northern Ireland from the EU and are now relocating onward to England, Wales or Scotland, don’t assume the document requirements above apply to that final leg. They don’t.
What happens if you get it wrong
A dog that arrives without meeting these requirements can be quarantined for up to four months, or refused entry outright if it travelled by sea, and you’re responsible for whatever that costs. Three specific situations pull you into a stricter set of rules on top of everything above, known as the Balai rules: selling, rehoming or transferring ownership of the dog as part of the move; the dog arriving more than five days before or after you do, which matters if you’re flying ahead to sort out housing and sending the dog later with a shipper; or bringing more than five pets at once outside a competition, show or sporting event. None of these situations remove the microchip, vaccination or tapeworm requirements above; they add to them. And separately from all of this: you cannot bring a banned breed of dog into Great Britain at all unless it already holds a valid Certificate of Exemption, which is worth checking before you book anything else if your dog is one of the affected breeds.
The other direction: taking a dog from Great Britain to the EU
Since 1 January 2021 the UK has been a “third country” as far as the EU is concerned, and specifically a listed one: Great Britain sits in Annex II of the EU’s current pet-travel list (Implementing Regulation (EU) 2026/636), which older guidance calls “Part 2 listed”, the same simplified category as the USA, Canada and Japan. That status governs pets leaving Great Britain for the EU. Because the UK is “listed” rather than “unlisted,” a GB-origin pet doesn’t need the rabies antibody blood test and three-month wait that unlisted-country pets face. But a GB-issued pet passport no longer works for entry to the EU: instead, the owner needs an Animal Health Certificate, issued by an official vet in Great Britain, valid for 10 days from issue to enter the EU and then for six months for onward travel within the EU and return to Great Britain, or until the rabies vaccination expires, whichever comes first. The two authorities word the start of that six months differently: the EU counts it from the entry checks, while GOV.UK counts it from the date of issue, so working to the date of issue keeps you safe on both. That figure has moved before: older guidance still in circulation quotes a four-month window rather than six, so if you’re reading something that doesn’t mention a 2026 update, treat its numbers as due for a check. The certificate model has changed as well: from 1 October 2026 the EU requires its new model, and an old-model certificate issued before that date is accepted only until 31 March 2027. Our companion piece on the EU pet passport covers that document and who’s actually eligible for one.
Bringing more than just the dog?
If the rest of the household is moving too, we can price out the whole relocation to the UK, not just your dog’s paperwork.
Frequently asked questions
Do I need a new document if my dog already has an EU pet passport?
Not necessarily. A valid EU-issued pet passport is one of the accepted documents for entering Great Britain from the EU in its own right. What changed after Brexit is the reverse direction, taking a pet from Great Britain to the EU, where a GB-issued passport no longer works. Bringing a dog into the UK this way, with a current EU pet passport, needs no new document at all.
How long before travelling do I need to get my dog’s tapeworm treatment?
You need it between 24 hours and 5 days (120 hours) before arrival in Great Britain, unless you’re travelling directly from Finland, Ireland, Northern Ireland, Malta or Norway, where the treatment isn’t required at all.
Does my dog need tapeworm treatment if we’re moving from Northern Ireland?
No. Dogs travelling directly from Northern Ireland into Great Britain don’t need tapeworm treatment, and in fact don’t need a pet passport or health certificate of any kind for that journey.
How long do I have to wait after my dog’s rabies vaccination before travelling?
Allow at least 21 full days between the first rabies vaccination (or the last injection of the first course) and the day you travel, whichever applies to your dog’s specific vaccine. This is a one-time wait for the primary course, not something you repeat with every booster.
What happens if my dog’s microchip can’t be read when we arrive?
It can be refused entry or put into quarantine. You’d then need to rechip, revaccinate and wait out the 21 days again, so it’s worth confirming the chip meets ISO 11784/11785 standards well before you travel.
Next steps
If a pet passport is one of your options, our guide to the EU pet passport covers who’s actually eligible to hold one and what keeps it valid, which matters most if you or your dog have spent time in both the EU and the UK. For the rest of the move, not just the dog, see what bringing a pet to the UK involves as part of a wider relocation.
Sources
- gov.uk, “Bringing your pet dog, cat or ferret to Great Britain,” full guide including the Microchip, Tapeworm treatment for dogs, Great Britain pet health certificate, Which pet travel document you need and Blood tests for rabies pages, accessed 9 October 2026
- gov.uk, “Taking your pet dog, cat or ferret abroad: Travelling to an EU country”, accessed 9 October 2026
- European Commission, Food Safety, “Bringing a pet into the EU from a non-EU country”, accessed 9 October 2026
- European Commission, Food Safety, “Listing of territories and non-EU countries”, accessed 9 October 2026
- Commission Implementing Regulation (EU) 2026/705, Article 6 (transitional measures), EUR-Lex, accessed 9 October 2026
All sources accessed 9 October 2026. Pet travel rules have changed more than once since Brexit and can change again. That’s true in both directions, into Great Britain and from Great Britain into the EU. Confirm current requirements directly with gov.uk or your vet before you book travel, particularly around timing windows that can invalidate a move if missed.
