Brazil has a free national register for dogs and cats called SinPatinhas.
Owners can create a record through their Gov.br account.
SinPatinhas also has a public search for microchip numbers.
However, many Brazilian pets are still recorded in private, municipal or older databases.
For this reason, a finder may need to check more than one system.
Which microchip databases are used in Brazil?
Brazil’s national system is called SinPatinhas.
Its full name is Sistema do Cadastro Nacional de Animais Domésticos.
In English, this means the National Domestic Animal Register System.
SinPatinhas is a free public system run by the Brazilian federal government.
It is available throughout Brazil.
A SinPatinhas record can include:
- Information about the animal
- The responsible keeper’s contact details
- The microchip number
- Vaccination information
- Sterilisation information
- Health information
- A change of responsible keeper
Brazil also uses private and local microchip databases.
Other records may be held by:
- SIRAA
- A private microchip company
- A veterinary clinic
- A shelter or rescue organisation
- A municipal or state database
- A database in another country
An animal may appear in more than one system.
Updating one record does not normally update the others.
What is SinPatinhas?
SinPatinhas is Brazil’s national dog and cat register.
It was created under federal law and launched in 2025.
Owners can register their animals online.
Veterinarians, clinics, animal welfare organisations and public authorities can also use the system.
After registration, the keeper can create a digital animal identity card.
This is often called the Animal RG.
The card includes a QR code.
The QR code can be placed on the animal’s collar.
A finder can scan it and see the recovery information made available through the system.
Can a microchip be searched in SinPatinhas?
Yes.
The SinPatinhas homepage includes a public microchip-number search.
A finder can enter the complete chip number.
The search checks whether the number appears in the national system.
The owner’s full private information should not be displayed publicly.
Only information made available for identification or recovery should be shown.
What is SIRAA?
SIRAA is an animal identification database used in Brazil and other parts of Latin America.
Its full name is Sistema de Identificação e Registro de Animais da América Latina.
The database accepts microchipped pets and horses.
It also provides a public microchip search.
Some vets, municipalities and microchip suppliers have used SIRAA for their records.
A SIRAA registration is separate from SinPatinhas.
Updating one system does not automatically update the other.
Are microchips required in Brazil?
Brazil does not have one federal rule requiring every privately owned dog and cat to have a microchip.
Registration in SinPatinhas is also voluntary.
However, state and municipal rules may be different.
A microchip may also be required for:
- International travel
- Moving permanently to another country
- Adoption through some shelters or rescues
- Municipal microchipping programmes
- Some breeders and animal organisations
Even when it is not required, microchipping is strongly recommended.
It gives a lost animal a permanent form of identification.
Does a pet need a microchip to join SinPatinhas?
No.
A dog or cat can be registered in SinPatinhas without a microchip.
The animal receives a national record and digital Animal RG.
If the animal is microchipped later, the chip number can be added to the record.
A microchip provides stronger permanent identification than a collar tag alone.
A collar or QR tag can be lost or removed.
Are cats required to be microchipped?
There is no general federal rule requiring every privately owned cat in Brazil to have a microchip.
Local rules may be different.
Microchipping is still useful for indoor cats.
An indoor cat can escape through a door, window or balcony.
A readable microchip may also be required for international travel.
What do Brazilian microchip numbers look like?
Modern pet microchips normally contain 15 digits.
Brazil’s ISO country code is:
076
A Brazilian country-coded chip may therefore begin with 076.
However, not every pet living in Brazil has a 076 chip.
Many chips use a manufacturer code instead.
Manufacturer-coded microchips usually begin with the number 9.
Some animals were microchipped in another country before arriving in Brazil.
This is common with:
- Imported dogs and cats
- Pets adopted through international rescues
- Animals that moved to Brazil with their families
- Older pets with manufacturer-coded chips
A readable foreign chip can still be added to a Brazilian registration.
The first digits are only a clue.
They do not prove where the pet lives or where its registration is held.
Read our guide to pet microchip numbers for more information.
What should you do if you find a microchipped pet in Brazil?
Take the animal to a vet, shelter or municipal animal service.
Ask them to scan the animal carefully.
Write down the complete microchip number.
It can be useful to scan more than once and across the shoulders and body.
A chip may have moved from its original position.
Then check:
- The public search on SinPatinhas
- The SIRAA microchip search
- Any municipal or state database
- The veterinary clinic connected to the chip
- Databases in countries where the animal may have lived
- The microchip manufacturer or distributor
- ChipTrace for database, country and manufacturer clues
ChipTrace automatically checks available connected databases.
For Brazilian chips, it also provides buttons to open SinPatinhas and SIRAA for manual searches.
The search is then completed on the relevant Brazilian website.
A public result should not reveal the keeper’s full private details.
The database, vet, shelter or public authority may contact the registered keeper instead.
Do not publish the complete microchip number online.
Keep part of the number private so that ownership claims can be checked.
Read how ChipTrace works for an explanation of automatic checks, manual searches and next-step advice.
What if a Brazilian microchip cannot be found?
Ask a vet or shelter to scan the animal again.
One incorrect digit is enough to produce no result.
Then:
- Search SinPatinhas
- Search SIRAA
- Check the animal’s vaccination and veterinary records
- Contact the clinic that implanted the chip
- Contact the shelter, rescue or breeder
- Check any municipal or state database
- Check databases in countries where the pet has lived
- Contact the chip manufacturer or distributor
- Use ChipTrace for database, country and manufacturer clues
The chip may have been implanted but never registered.
Its record may also be held in an older private, veterinary or municipal system.
The animal may have been registered in another country.
If no database record is found, the manufacturer or distributor may provide another trace-back route.
The manufacturer may be able to identify the distributor or supplier that received the chip.
The supplier may then identify the veterinary clinic, breeder, shelter or rescue that received it.
That organisation may know where the chip was implanted or registered.
They will not normally give the finder the owner’s private information.
Instead, they may contact the next organisation or the registered keeper directly.
Trace-back is not guaranteed.
Records may be old, incomplete or unavailable.
A missing result does not prove that the animal has no family.
Read our guide to why a microchip may not appear in any database.
Can I add a global microchip registration?
Yes.
An additional global record can provide another route back to the keeper.
Animal-ID allows owners to create an additional record using an existing microchip number.
This may help when:
- The pet travels outside Brazil
- The animal is adopted abroad
- A finder uses an international search service
- The Brazilian record is difficult to locate
- The animal has a foreign chip
This is an extra safety net.
It does not replace SinPatinhas or any required local registration.
Keep the same contact details in every active database.
How to register a pet in SinPatinhas
- Open the SinPatinhas website.
- Sign in using your Gov.br account.
- Choose the responsible-keeper profile.
- Add the animal’s information.
- Upload a clear photograph.
- Check your telephone number and address.
- Complete the registration.
- Download the digital Animal RG.
- Ask your vet to add any professional procedures.
The animal does not need to have a microchip before the main record is created.
Registration is voluntary and free.
Who can add the microchip to SinPatinhas?
The keeper can create the animal’s main record.
However, some professional procedures can only be entered by a veterinarian.
These include:
- Microchip implantation
- Vaccination
- Sterilisation
- Some veterinary treatments
Ask the vet to add the microchip procedure after implantation.
Check that the complete chip number is correct.
How to register a microchipped pet in Brazil
- Ask a vet to scan the animal.
- Write down the complete chip number.
- Check whether the chip is already registered elsewhere.
- Create or check the pet’s SinPatinhas record.
- Ask the vet to record the microchip procedure.
- Confirm that the chip appears in the correct animal record.
- Check your contact details.
- Keep any useful older database records active.
One incorrect digit can stop the record from matching the scanned chip.
Who implants the microchip?
A veterinarian should implant the microchip.
The animal is scanned first.
This checks whether a chip is already present.
If a chip is needed, it is implanted under the skin.
The vet then scans it again.
This confirms that the chip works and shows the correct number.
Ask for the complete number in writing.
Keep it with the animal’s veterinary and vaccination records.
Does the vet register the chip automatically?
Not always.
The vet may enter the procedure in SinPatinhas.
The clinic may also use SIRAA or another database.
In some cases, the keeper needs to complete part of the registration.
Ask the vet:
- Which database will hold the record?
- Has the chip been added to SinPatinhas?
- Is there another active database?
- Is the chip number correct?
- Are my contact details included?
- How can I update the record later?
Do not assume that implantation means registration is complete.
A chip without a current record may not lead a finder back to you.
How to update a Brazilian pet registration
Update every active record when:
- You move home
- Your telephone number changes
- Your email address changes
- The animal moves to a new keeper
- The animal goes missing
- The animal is found again
- The animal moves abroad
- The animal dies
Some veterinary information can only be updated by a vet.
Federal, private, veterinary and municipal databases may not update each other.
Check each active record separately.
How to change the responsible keeper
SinPatinhas allows important events to be added to the animal’s record.
This includes a change of responsible keeper.
The former and new keeper should make sure that the record is updated.
Keep proof of the transfer.
This may include:
- An adoption contract
- A purchase agreement
- A signed transfer document
- Veterinary records
If the chip is registered elsewhere, update that database separately.
Changing SinPatinhas may not change a private or municipal record.
What if the pet is still registered to someone else?
Contact the former owner, shelter, rescue or breeder first.
Ask them to help update the record.
If they cannot help, contact the database holding the registration.
Explain how the animal came into your care.
Provide any documents the database requests.
A microchip record shows who is listed as the contact.
It may not settle an ownership dispute on its own.
Buying or adopting a pet in Brazil
Ask whether the animal has a microchip.
If it does, ask for:
- The complete microchip number
- The name of every database holding the record
- The SinPatinhas Animal RG, when available
- Vaccination records
- An adoption or purchase agreement
- Any local registration documents
Ask a vet to scan the chip.
Check that the scanned number matches the documents.
The former owner, shelter, rescue or breeder should help update every active record.
What about a pet adopted from a Brazilian rescue?
Ask the rescue which records already exist.
Also ask:
- Whether the animal has a microchip
- Who is named in each database
- Whether the pet is registered in SinPatinhas
- Who will complete the transfer
- Who will register the pet in its new country
- Whether the rabies and travel documents are complete
A pet adopted abroad may need records in both Brazil and its destination country.
Keep the Brazilian records active until the new registration is confirmed.
What should you do if your pet goes missing?
Check the SinPatinhas record immediately.
Make sure the telephone number is correct.
Report the animal as missing in every database that offers this option.
Also:
- Contact local veterinary clinics
- Contact shelters and rescue groups
- Contact the municipal animal service
- Check local found-pet pages
- Share a clear photograph
- Include the place and date where the animal disappeared
Do not publish the complete microchip number online.
Keep part of it private so that ownership claims can be checked.
When the animal returns, update every missing-pet report.
Bringing an imported pet to Brazil
A foreign microchip registration does not automatically create a Brazilian record.
After arrival, ask a Brazilian vet to scan the animal.
Take:
- The animal
- Its international veterinary certificate or official passport
- Its rabies vaccination record
- The microchip certificate, when available
- Your Brazilian contact details
- Any foreign database information
A readable foreign chip does not normally need to be replaced.
Check that the number matches every document.
Add the animal to SinPatinhas after arrival.
Keep the foreign database record active as well.
Dogs and cats entering Brazil must meet the current official health-document requirements.
Check the latest Brazilian Ministry of Agriculture guidance before travelling.
Travelling with a pet to or from Brazil
Microchip registration and border rules are separate.
The destination country decides which documents are required.
A pet may need:
- An ISO-compatible microchip
- A valid rabies vaccination
- An International Veterinary Certificate
- A rabies antibody blood test
- Parasite treatment
- An import permit
Some countries require the chip to be implanted before the rabies vaccination used for travel.
People leaving Brazil may need a Certificado Veterinário Internacional, usually called a CVI.
Start preparing early.
Check the official destination rules before every journey.
Travelling from Brazil to the European Union
Dogs, cats and ferrets entering the EU from Brazil normally need:
- A readable microchip
- A rabies vaccination given after identification
- A successful rabies antibody titre test
- An EU animal health certificate
- Entry through an approved travellers’ point
The blood sample is normally taken at least 30 days after the rabies vaccination.
A waiting period may apply before entry.
The exact rules can change and depend on the type of movement.
Begin the process several months before travelling.
Check the latest official EU pet-travel guidance.
Useful Brazilian microchip links
SinPatinhas
Register a dog or cat or search a microchip number
Official SinPatinhas guidance
Read the government registration instructions
SIRAA
Read about the Latin American animal database
SIRAA microchip search
Search a chip number in SIRAA
Animal-ID
Create an additional global microchip registration
Entering Brazil with a pet
Read Brazil’s official pet-entry guidance
Leaving Brazil with a pet
Read Brazil’s official export and CVI guidance
EU pet-travel guidance
Check the rules for entering the European Union