SHORT ANSWER
To bring a dog into Portugal from the United States, your dog needs an ISO-compliant microchip implanted before a rabies vaccination, a rabies vaccine given at least 21 days before travel (with no titer test required, since the US is not classified as a rabies risk country), and a USDA-endorsed EU non-commercial health certificate issued within 10 days of arrival. Owners must also submit a written arrival notice to Portuguese authorities at least 48 hours before landing. Seven dog breeds, including the American Staffordshire Terrier and Rottweiler, require an extra declaration at the border, and puppies under 12 weeks old cannot be imported at all.
Every dog entering Portugal from the US needs a working, ISO 11784 and 11785 compliant microchip, and the sequence matters more than most owners expect. Under EU Regulation 2026/131, which replaced the older 576/2013 framework in April 2026, a rabies vaccination only counts if it was given on or after the date the microchip was implanted and scanned (USDA APHIS pet travel requirements for Portugal). If your dog already has a working rabies vaccine on record but got the microchip afterward, Portuguese officials will treat that vaccination as if it never happened, and you will be back at day zero of the waiting period.
If your dog has an older, non-ISO-compliant microchip, you have two options: travel with your own scanner capable of reading it, or have your vet implant a second ISO-compliant chip and make sure both numbers appear on the health certificate.
This is one of the most common points of confusion for pet owners who have researched requirements for countries like Australia or the UK's older rules. Portugal's Directorate-General for Food and Veterinary Affairs (DGAV) sorts countries of origin into two categories: those with an elevated rabies risk, and everyone else. The blood test for rabies antibody titration, along with the 90-day wait that follows it, is only required for dogs coming from listed high-risk countries such as those in continental Africa, Brazil, Venezuela, and Ukraine (DGAV: Cães e Gatos, entering Portugal from outside the EU).
Because the United States is not on that risk list, your dog only needs a valid rabies vaccination administered at least 21 days before travel (or longer, if the vaccine manufacturer specifies a longer immunity period). No blood draw, no lab result, no waiting on Kansas State's rabies lab. This single distinction can save US pet owners months compared to relocating a dog to a country that does require titer testing. Our rabies titer testing explainer breaks down this myth in more detail, since it remains one of the most searched questions among owners planning a move.
Most US pet owners moving to Portugal with five or fewer dogs, traveling within 5 days of their pet, will use the "non-commercial" EU health certificate rather than the commercial version. A USDA-accredited veterinarian examines your dog, completes the certificate, and then USDA endorses it, either electronically through VEHCS for the vet's portion or with an original ink signature and embossed seal for the final USDA step.
Two deadlines matter here, and missing either one means starting the certificate process over:
Owners traveling with a "designated person" (a family member, friend, or anyone authorized by the owner) rather than flying alongside the dog themselves can still use the non-commercial certificate, as long as that person travels within 5 days before or after the dog does (USDA APHIS: Pet Travel From the United States to Portugal). If nobody the owner has designated is traveling within that window, the shipment is treated as commercial, which comes with a much tighter 48-hour certificate window instead of 30 days.
Worth flagging for anyone planning travel later this year: the certificate format itself is changing. The new non-commercial certificate becomes mandatory on October 1, 2026, though certificates issued under the older 576/2013 format can still be endorsed through September 30, 2026. If your move falls near that transition, confirm with your accredited veterinarian which version applies to your travel date.
Beyond the health certificate, Portugal requires pet owners to notify authorities in writing at least 48 hours before their dog's arrival. This notice is separate from, and in addition to, the veterinary paperwork, and it exists specifically to let staff at the Point of Entry for Travelers (Ponto de Entrada dos Viajantes, or PEV) prepare for the veterinary inspection that happens on landing.
This step is easy to overlook because it is not a medical requirement at all. It is an administrative one, and skipping it can mean delays at the airport even when every vaccination and document is otherwise in order.
This is where dog import requirements diverge sharply from cat import requirements, and it is worth its own section for any owner moving a dog to Portugal. DGAV permits the entry of seven breeds classified as potentially dangerous, along with their crossbreeds, but requires an additional signed document at the Point of Entry:
Owners of these breeds must present one of two documents at the airport: a Termo de Responsabilidade (declaration of responsibility) for stays in Portugal shorter than 4 months, or a Notificação de Permanência (notice of residency) for longer stays. The one exception is a dog registered in an officially recognized pedigree book, such as an LOP, in which case written proof of that registration can be presented instead (DGAV: Cães de Raças Consideradas Potencialmente Perigosas).
Notably, this restriction sits outside the standard health and vaccination rules. It does not change your dog's microchip, rabies, or certificate timeline, but it does mean owners of these breeds need to plan for one more form at the point of entry.
Portugal will not admit a dog younger than 12 weeks old, full stop. Dogs between 12 and 16 weeks old are also turned away if their rabies vaccination was administered fewer than 21 days before arrival, since a rabies vaccine given to a puppy that young still needs to clear the same 21-day immunity window as an adult dog's primary vaccination (DGAV: Cães e Gatos requirements). Families relocating with a young puppy should plan the microchip and vaccination timeline with extra buffer, since there is no exception process for animals that arrive under age or under-vaccinated.
On arrival, dogs are examined by a veterinary official at the Point of Entry, and this inspection carries a fee: 42.25 euros for one animal, or 84.50 euros for two or more animals traveling together, according to DGAV's published fee schedule. Service dogs assisting people with disabilities are exempt from this fee. Lisbon and Porto are the two airports with a staffed PEV, and both close overnight (Lisbon from midnight to 6 a.m., Porto from 11 p.m. to 7 a.m.), so veterinary control for pets arriving during those hours happens once the PEV reopens.
As Adam Melton, VP of Strategic Initiatives at Starwood Pet Travel, explains: "Families moving a dog to Portugal are often surprised by how much shorter this process is compared to a country like Australia. The paperwork still has to be exact, the microchip still has to go in before the vaccine, and the 48-hour notice still has to be filed on time, but there is no six-month titer wait hanging over the calendar. That difference alone changes how we plan the entire relocation timeline for a US family."
Owners who have already gone through this process describe a similar sequence of steps as the official guidance lays out, even when moving from a different country of origin. In a detailed post to r/portugal describing a move from Canada, one pet owner wrote: "Os animais têm que ter obrigatoriamente: microchip, vacina da raiva (no mínimo 1 mês antes da viagem)... O exame de sangue não é obrigatório para países sem risco de raiva como é o caso do Canadá," and confirmed the same Point of Entry fee structure Starwood cites above, 42.25 euros for one animal and 84.50 euros for two or more (r/portugal: Viajar com animais Canadá > Portugal). Translated, the key line reads: the microchip and rabies vaccine are mandatory, but the blood test is not required for countries without a rabies risk classification, which is exactly the same rule that applies to dogs coming from the US.
Compared to relocating a dog to a country like Australia, the US-to-Portugal process is measured in weeks rather than months for most healthy adult dogs. The rabies vaccine's 21-day wait, plus the time needed for your USDA-accredited veterinarian to prepare the health certificate and for USDA to endorse it, means most families can realistically plan on a 6 to 8 week runway once the microchip is in place. For a full walkthrough of every stage of the move, see our complete timeline for moving a pet from the US to Portugal and our breakdown of what US-to-Portugal pet relocation actually costs. If you would rather have a team confirm your dog's specific timeline and paperwork, you can request a quote from Starwood Pet Travel or reach out to our team directly.