The federal government sanctioned the law that regulates shared custody of pets in cases of separation. The law determines that the judge must divide the custody and costs of the pet between the ex-partners when there is no agreement. In cases of domestic violence or mistreatment, the aggressor loses possession and ownership of the animal without compensation.
The federal government sanctioned and published this Friday (17) the law that changes the way Brazilian couples deal with their pets in cases of divorce or dissolution of stable unions. The new law regulates shared custody of pets and establishes specific criteria for dividing custody and expenses when the couple separates and cannot reach an agreement on who keeps the animal. The text provides that the judge must determine the sharing of custody and maintenance costs of the pet in a balanced way between the ex-partners, treating the animal as “common property” when it lived most of its life during the relationship.
The law was approved by Congress on March 31 and brings important exceptions. Shared custody will not be granted in cases of history or risk of domestic or family violence, nor in situations of mistreatment against the animal. In these cases, the law determines that the aggressor loses possession and ownership of the pet, without the right to compensation, in addition to remaining responsible for any outstanding expenses. Anyone who voluntarily gives up custody also loses possession and ownership of the animal, and repeated non-compliance with the agreed rules may lead to the permanent loss of custody.
What the shared custody law for pets changes in practice
Before this law, the dispute for custody of pets in cases of divorce had no specific regulation in Brazil. Judges decided on a case-by-case basis, often treating the pet as a material asset to be divided or assigned to one of the spouses, without standardized criteria that took into account the well-being of the animal or the emotional bond of each guardian. The new law changes this scenario by creating clear rules that must be followed throughout the country.
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According to information from the G1 portal, in defining custody, the law determines that the judge considers factors such as living conditions, ability to care, available time, and the well-being of the animal. The time spent with the pet will be divided between the parties based on these criteria, which means that the animal may spend alternating periods with each ex-partner, in a model similar to what already exists for child custody. The fundamental difference is that the law recognizes that the pet is not an object, but a being that needs attention to its specific needs.
How the law divides pet expenses between ex-couples
The financial issue is one of the most practical parts of the new law. The daily costs of the animal, such as food and hygiene products, are the responsibility of whoever has the pet during that period, eliminating the need for accounting on basic daily expenses. Each guardian bears the expenses proportional to the time the animal is under their care.
For extraordinary expenses, the law establishes an equal division. Veterinary consultations, hospitalizations, surgeries, medications, and other costs that fall outside the routine must be equally divided between the ex-partners, regardless of who has the animal at the time the expense arises. This rule prevents one of the guardians from bearing unexpected costs alone, which can be significant, such as complex health treatments or medical emergencies that any pet owner knows.
When the law prevents shared custody of the animal
The law is not absolute in imposing shared custody. There are situations where the judge must deny sharing and grant exclusive custody to one party, protecting both the animal and the vulnerable ex-partner. Cases of history or risk of domestic or family violence are the main exception, as well as situations where there is evidence of mistreatment against the pet during or after the relationship.
In these scenarios, the consequences provided by the law are severe. The aggressor loses possession and ownership of the animal without the right to compensation, a punishment that goes beyond the simple denial of custody and acts as a protection mechanism for both the animal and the victim of violence. The law also stipulates that the aggressor remains responsible for any outstanding expenses related to the pet, preventing the loss of custody from being used as an excuse to abandon previous financial obligations.
The rules that can lead to permanent loss of pet custody
The law creates mechanisms to ensure that the rules are followed over time. Whoever voluntarily gives up shared custody automatically loses possession and ownership of the animal, meaning that the decision not to participate in custody is irreversible. This rule prevents one of the ex-partners from using pet custody as a bargaining chip or pressure tool during post-separation disputes.
Repeated non-compliance with the conditions set by the judge also has consequences. The law provides that repeated infractions can lead to the permanent loss of custody, transferring full custody to the other guardian. In practice, this means that failing to attend animal handover commitments, neglecting basic care during cohabitation periods, or breaching financial agreements can result in the permanent exclusion of the offender from the pet’s life.
What the law means for millions of pet owners in Brazil
Brazil has one of the largest pet populations in the world, and the new law directly affects millions of families who own dogs, cats, and other pets. For couples who separate, the regulation eliminates the legal uncertainty that previously turned the dispute over the pet into an extension of the divorce conflicts, offering objective criteria that the judge must follow to make decisions prioritizing the pet’s well-being.
The law also sends an important cultural message. By treating the pet as a being deserving of its own regulation rather than a simple divisible object, Brazilian legislation aligns with a global trend recognizing animal sentience and the importance of the emotional bond between humans and their pets. For the millions of Brazilians who consider their animals family members, the new law is a legal validation of something they already felt in practice: the pet is not a piece of furniture; it is a shared responsibility that deserves legal protection.
The government has enacted the law that requires ex-couples to share custody of pets in the event of divorce. Do you think this law was necessary? Have you gone through a custody dispute over a pet? Leave your opinion in the comments.

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