Published 6/13/2026
Nadia had done everything right. Or so she thought.
She’d booked the flights, bought the approved carrier, had her dog microchipped, and visited the vet twice in the weeks before departure. What she hadn’t realised — what no one had told her — was that the health certificate needed to be issued within ten days of travel, not ten days before she started the process. Her certificate was eleven days old when she arrived at check-in. Her dog flew, eventually, but Nadia spent four hours on the phone to embassies, vets, and airline staff before anyone found a workable solution.
Pet relocation is full of moments like this. Rules that seem clear until they’re not. Timelines that don’t leave room for error. Requirements that vary not just country to country but sometimes airport to airport.
Here’s what’s actually worth knowing.
If your pet isn’t microchipped, every other step is provisional. Most countries require an ISO-standard 15-digit microchip (ISO 11784/11785). If your pet has an older 9 or 10-digit chip that isn’t ISO-compliant, you may need to implant a new one — and in most jurisdictions, the microchip must be implanted before the rabies vaccination for the vaccination to be valid for travel purposes.
Get the microchip. Get it first. Note the number somewhere you won’t lose it.
Most countries require an up-to-date rabies vaccination. Some require two vaccinations at least 21 or 30 days apart before travel. A few require a rabies antibody titre test — a blood test that proves the vaccine actually worked — and then a waiting period of several months after the test before entry is permitted.
Australia, New Zealand, Japan, and several other countries fall into this last category. If you’re moving to one of them and your pet hasn’t started this process at least six months before your planned departure date, you may be looking at a longer timeline than you expected.
None of this is obscure. It’s all publicly available. But it’s easy to assume “vaccinated” is enough and discover too late that it isn’t.
Most destinations require an official health certificate issued by an accredited or government-authorised veterinarian. This certificate typically needs to be issued within a specific window — often 7 to 10 days before travel. Some countries require it to be endorsed by a government veterinary authority after the vet signs it, which adds time.
This is the step that catches people out most often. You cannot get the certificate too far in advance. You can, however, get the endorsement appointment booked well ahead of time — and in busy periods, those slots fill up.
Even if your pet meets every import requirement for your destination country, your airline may still refuse carriage if you haven’t followed their specific procedures. Requirements vary by carrier, by route, by time of year (many airlines restrict travel in extreme heat), and by the size and breed of your pet.
Some breeds — particularly brachycephalic (flat-faced) dogs and cats — are banned from cargo holds on many airlines due to respiratory risk. If your pet is a French bulldog, Persian, or similar breed, check airline policies before you book anything else.
When you travel with a pet, have digital copies of everything:
Paper gets lost, wet, crumpled, or left on kitchen counters. A digital record that lives on your phone — and ideally is stored somewhere accessible even without a signal — is worth having alongside the originals.
Petso lets you carry your pet’s full medical history digitally, including vaccination records and health documents. It doesn’t replace official paperwork, but having your pet’s records organised and accessible has a way of making every part of this process slightly less stressful.
A handful of countries still require quarantine on arrival regardless of documentation. Policies change — the UK, for example, eliminated quarantine for compliant pets when it joined the EU pet travel scheme (and still accepts compliant animals post-Brexit under specific conditions). Australia and New Zealand require quarantine even for fully documented pets.
If quarantine is required, it’s not a punishment — it’s a public health measure, and the facilities are typically professional and well-managed. But it’s expensive, and your pet will be separated from you for days or weeks. Factor that into your planning emotionally as well as financially.
People chronically underestimate the lead time for international pet travel. The answer, almost always, is to start earlier than you think you need to.
For straightforward moves between countries with mutual recognition agreements — within the EU, or between the UK and certain partner countries — six to eight weeks is often enough if your pet’s vaccinations are already current.
For countries with titre test requirements and quarantine, you may be looking at a process that starts six months to a year before your travel date.
Start with the official government import requirements for your destination country. Then work backwards from your travel date. Then call your vet.
And maybe don’t leave the health certificate to the last minute.