Child Support (pensão Alimentícia) in Brazil (2026): How to Claim, Calculate, Enforce and Modify

Child support Brazil claims are governed by a dense but navigable framework of constitutional duty, civil statute and specialised enforcement procedure, and in 2026 the practical pressure points for parents and caregivers remain speed, proof of income and the enforceability of any agreement reached. This guide sets out, in regulator-grade detail, how to claim, calculate, enforce and modify pensão alimentícia (child maintenance), the Portuguese legal term for the periodic support one parent pays toward a child’s upbringing. It is written for the person who must decide whether to start a claim, respond to one, or vary an order already in force.

Everything below is general information, not legal advice; the thresholds and timelines vary by state court, and you should instruct a family lawyer before filing.

TL;DR, Five steps to secure child support in Brazil

1. Gather proof. Birth certificate, the payer’s income evidence and receipts showing the child’s costs.
2. Attempt an agreement. A negotiated acordo homologated by a judge is the fastest enforceable route.
3. If no agreement, file the ação de alimentos. Request urgent provisional support (tutela de urgência) in the opening petition.
4. Obtain the order. The judge fixes a monthly amount reflecting the child’s needs and the payer’s capacity.
5. Enforce if unpaid. Payroll deduction, bank seizure, protest of the debt and, as a last resort, civil imprisonment of the defaulter.

1. Overview, What is pensão alimentícia?

Child support in Brazil is the legal obligation of parents to contribute financially to a child’s food, housing, health, education, clothing and leisure. It reflects a shared duty that does not end with separation, divorce or the absence of any relationship between the parents.

Legal basis (Constitution, Código Civil, ECA)

Three instruments anchor the obligation. The Federal Constitution establishes the family as entitled to special protection and treats the care of children as a shared duty of the family, society and the State. The Código Civil (Lei nº 10.406/2002), in articles 1.694 to 1.710, sets out who owes maintenance, how need and capacity are balanced, and how the obligation may be varied or extinguished. The Estatuto da Criança e do Adolescente (ECA, Lei nº 8.069/1990) adds reinforced procedural protection for anyone under 18.

Who can claim and who must pay

The primary obligors are the child’s parents. Where a parent cannot pay or has died, the duty can extend up the family line, grandparents may be called upon on a complementary and subsidiary basis under the reciprocity principle in the Código Civil. The person who claims on the child’s behalf is usually the custodial parent or legal guardian.

Readers also asking about the rules and procedures for divorce in Brazil should note that child support is decided separately from, though often alongside, the dissolution of the marriage; a family lawyer will frequently handle both in a single proceeding where custody and maintenance are disputed.

2. Eligibility, Who can request child support and when

Eligibility turns on the relationship of dependence, not on the marital status of the parents.

Minor children, disabled adult children and pregnant mothers

• Minor children. A child under 18 is presumed to need support; the claim is brought by the custodial parent or guardian.
• Adult children in study or with disability. The obligation does not automatically cease at 18. An adult child who remains in higher education or vocational training, or who cannot support themselves because of a disability, may continue to receive maintenance where the Código Civil need-and-capacity test is met.
• Pregnant mothers. Brazilian law recognises alimentos gravídicos under Lei nº 11.804/2008, pre-birth maintenance covering pregnancy-related costs, payable by the alleged father on reasonable evidence (indícios) of paternity, converting into child support once the child is born.

Parents versus third parties

The reciprocal maintenance duty in articles 1.694 to 1.710 of the Código Civil runs between relatives in the ascending and descending line. Where a biological link is contested, the claimant may need to prove paternity through a exame de DNA (DNA test). Under consolidated case law (and Súmula 301 of the Superior Tribunal de Justiça), a refusal to submit to testing can be weighed against the party who refuses, and the court may proceed on a presumption of paternity.

3. Step-by-step: how to claim, calculate, obtain and enforce child support

There are two routes to an enforceable child support obligation: a homologated agreement (the consensual path) and a contested judicial claim (ação de alimentos). The roadmap below covers both, then enforcement and appeals.

Option A, Consensual agreement and homologation

Where parents can agree, this is faster, cheaper and far less adversarial. The steps are:

1. Negotiate the terms, monthly amount, payment date, indexation (commonly tied to a minimum-wage fraction or an official index), and who covers school and medical extras.
2. Draft the agreement in writing, ideally with a family lawyer, specifying periodicity and the payment method.
3. Homologate the agreement. Where the agreement concerns a minor child, it must be submitted to a judge for homologação, with the Public Prosecutor (Ministério Público) intervening to protect the child’s interest. Once homologated, the agreement becomes an enforceable judicial title.

Claimant checklist: bring the child’s birth certificate, both parties’ ID and CPF, and a clear statement of the child’s monthly costs. Call a lawyer before signing if the payer’s income is unclear or if the proposed amount seems low relative to need.

Option B, Judicial claim (ação de alimentos)

Where no agreement is possible, the claimant files an ação de alimentos (child support lawsuit), governed by Lei nº 5.478/1968 (the Lei de Alimentos) and the Código de Processo Civil. The stepwise process is as follows.

1. Emergency provisional support (alimentos provisórios / tutela de urgência). The opening petition should request immediate provisional maintenance so the child is not left unsupported during the case. Where the proceeding follows the special rite of the Lei de Alimentos and proof of the relationship is presented, the judge sets provisional support at the outset; otherwise urgent relief under the Código de Processo Civil (Lei nº 13.105/2015) can be granted quickly where need and plausibility are shown.
2. Filing the petition (petição inicial). The claim is filed in the family court with jurisdiction, generally the child’s place of residence. The petition states the parties, the relationship, the child’s needs, the payer’s known capacity and the amount requested.
3. Evidence and provisional measures. Produce pay stubs, bank statements, tax returns and, where paternity is disputed, DNA evidence. The court may order the employer or banks to disclose the payer’s financial position.
4. Hearing (audiência) and probative phase. The court attempts conciliation; if that fails, it hears the parties and evidence. The Ministério Público participates to safeguard the child.
5. Judgment (sentença). The judge fixes the obligation, a monthly amount, its indexation, the due date and periodicity. There is no fixed statutory percentage; the amount reflects the child’s needs and the payer’s ability to pay (the binômio necessidade–possibilidade).
6. Enforcement (cumprimento/execução de alimentos). If payment is not made, the creditor opens enforcement, see the subsection below.
7. Appeal and interlocutory remedies. A final judgment may be appealed by apelação; provisional decisions on support are challenged by agravo de instrumento. An appeal against an alimony judgment generally does not suspend the duty to keep paying.

How to enforce child support in Brazil

Enforcement of alimony is a special, expedited procedure under the Código de Processo Civil (articles 528 and following). The creditor chooses the enforcement track, and the remedies escalate:

• Payroll deduction (desconto em folha). The court orders the payer’s employer to deduct the instalment at source, the most reliable mechanism for salaried debtors.
• Bank seizure (penhora de valores). Electronic blocking and seizure of funds in the debtor’s accounts.
• Protest of the debt (protesto). The unpaid judicial title is recorded, damaging the debtor’s credit standing.
• Property seizure (penhora de bens). Seizure of assets to satisfy arrears.
• Civil imprisonment (prisão civil). For the most recent unpaid instalments (the three instalments due before the enforcement and those falling due during it, per CPC article 528 and STJ Súmula 309), the debtor who fails to pay or justify non-payment may be imprisoned under the special alimony regime, a coercive measure, not a punishment, that does not erase the debt. It is reserved for debtors who could pay but refuse.

Enforcement is filed before the court that issued the order. For older arrears, the creditor may use the ordinary enforcement track (seizure of assets) rather than the imprisonment track.

When to file for modification (revisão)

Child support is never permanently fixed. Either party may file a revisão (revision) where circumstances change substantially, for example, the payer loses income or suffers illness, or the child’s needs rise through schooling or medical costs. The duty may also be reviewed when the child reaches the age of majority, though majority alone does not automatically end it where the adult child still depends on support; it must be terminated through a specific proceeding (ação de exoneração) rather than by unilateral cessation of payment.

Step / Who / Duration timeline

Durations vary materially between a busy metropolitan court, such as those in São Paulo, and smaller municipal districts. Treat the table as realistic ranges, not guarantees.

4. Required documents

Assemble the evidence before filing. Incomplete documentation is a common cause of delay in a child support Brazil claim.

Evidence of paternity (if contested)

Where the payer disputes being the parent, paternity must be established before support can be fixed. A DNA test is the decisive evidence; an unjustified refusal to test allows the court to presume paternity against the refusing party.

Financial evidence from the payer

Because there is no statutory percentage, the court needs a clear picture of the payer’s means. Pay slips and income tax returns are strongest; for self-employed or informal-sector payers, bank statements, lifestyle evidence and third-party disclosure orders become critical.

5. Timeline and deadlines

Provisional support can be ordered early in the proceeding where urgency and plausibility are shown. A contested case to final judgment commonly runs several months, driven by the evidence phase and court backlog.

Key deadlines for enforcement

Enforcement of alimony is treated as a special procedure with expedited handling. In the imprisonment track under CPC article 528, the debtor is summoned to pay, prove payment or justify the impossibility of paying within three days; if the justification is not accepted, coercive imprisonment of one to three months may be ordered. Interlocutory decisions are challenged by agravo de instrumento within the procedural deadline; final judgments by apelação. Because precise deadlines depend on the enforcement track and the court, confirm them with counsel at the point of filing.

6. Costs and fees

Costs depend on the state, the complexity of the dispute and whether expert evidence is needed. The figures below are indicative ranges only and vary significantly; confirm current amounts with counsel.

When legal aid (Defensoria Pública) applies

Claimants who cannot afford a lawyer may qualify for free legal assistance through the Defensoria Pública, and court costs may be waived under the gratuidade de justiça regime provided for in the Código de Processo Civil. This makes child support accessible regardless of income, a deliberate feature of the system given the child’s protected status.

Estimating lawyer fees

Fees scale with contestation. A homologated consensual agreement sits at the lower end; a fully contested claim involving paternity testing, forensic income analysis and appeals sits at the higher end. Agree a written fee basis at the outset.

Comparison: consensual agreement versus judicial order versus provisional order

7. What changes in 2026 for child support Brazil

The core statutory architecture, the Constitution, Código Civil articles 1.694–1.710, the ECA, the Lei de Alimentos (Lei nº 5.478/1968) and the Código de Processo Civil, remains the controlling framework in 2026, and there has been no wholesale legislative overhaul of the child support regime. The practical direction of travel is procedural rather than substantive: the Conselho Nacional de Justiça (CNJ) continues to push digitalisation of family proceedings and faster handling of enforcement, and Superior Tribunal de Justiça (STJ) jurisprudence continues to refine issues such as the retroactivity of revised amounts, the reach of grandparental liability and the limits of civil imprisonment.

The likely practical effect, on current indications, is incremental: quicker electronic enforcement, broader use of asset-tracing tools and more consistent treatment of adult-child support during study. Parents should treat indexation rules, the interaction between support and social benefits, and any new CNJ enforcement recommendations as a watchlist, and confirm the current position with counsel before filing, since court-level practice evolves faster than the statutes.

8. Common pitfalls and how to avoid them

• Relying on an informal, unhomologated deal. A verbal or purely private arrangement is generally not an enforceable judicial title. Without homologação, you may not be able to open the special alimony enforcement against a defaulter.
• Failing to request provisional support. Omitting the urgent request can leave the child unsupported for months. Always seek alimentos provisórios in the opening petition.
• Not documenting the payer’s income. Without pay slips, tax returns or disclosure orders, the court cannot properly assess capacity, and the amount set may fall short of the child’s needs.
• Letting arrears build without acting. Delay complicates enforcement; the imprisonment track covers only the most recent instalments, so prompt action matters.
• Keeping no payment records. Debtors who pay informally, without receipts or traceable transfers, risk being treated as defaulters. Pay through traceable means.

When to urgently involve a lawyer

Instruct a family lawyer immediately where paternity is contested, where the payer conceals income or assets, where arrears are mounting, or where the child has urgent unmet needs. Early legal involvement protects the provisional-support window and the evidentiary record.

Practical tips for creditors and debtors

Creditors should keep a running ledger of what is owed and paid, request bank and payroll disclosure early, and choose the enforcement track deliberately. Debtors facing genuine hardship should file a revisão promptly rather than simply stopping payment, unilateral non-payment is what triggers seizure and imprisonment.

10. Conclusion

Securing child support in Brazil is achievable and well-supported by law, but outcomes turn on preparation: strong income evidence, a properly homologated agreement or judgment, and decisive enforcement when payment fails. Whether you are starting a claim, defending one, or seeking to vary an existing order, the fastest route to a reliable result is to combine the right documents with early professional guidance. For tailored advice on a child support Brazil matter, consult a qualified family lawyer.

This article is general information and not legal advice. Thresholds, timelines and costs vary by state and court; confirm your position with a qualified family lawyer before acting.

Sources

1. Constituição da República Federativa do Brasil
2. Código Civil (Lei nº 10.406/2002), arts. 1.694–1.710
3. Código de Processo Civil (Lei nº 13.105/2015)
4. Lei de Alimentos (Lei nº 5.478/1968)
5. Lei de Alimentos Gravídicos (Lei nº 11.804/2008)
6. Estatuto da Criança e do Adolescente (Lei nº 8.069/1990)
7. Conselho Nacional de Justiça (CNJ)
8. Superior Tribunal de Justiça (STJ)
9. Supremo Tribunal Federal (STF)
10. Ordem dos Advogados do Brasil (OAB)
11. Tribunal de Justiça do Estado de São Paulo (TJSP)