Brazil · Politics

Behind a technical row over one federal signature sits a familiar São Paulo question: who decides when a rich state gets to borrow. And on whose timetable.

Governor Tarcísio de Freitas has taken São Paulo’s fight over a R$5.45 billion (about US$1.01 billion) loan to Brazil’s Supreme Federal Court. Arguing that the federal government is stalling a routine credit approval.

The state wants the court to force the Finance Ministry to release a federal guarantee it says has been ready for months.

A Governor Turns to the Court

São Paulo’s government asked the Supreme Federal Court, known by its Portuguese initials STF. To step into a dispute with the federal Finance Ministry.

At the center is a R$5.45 billion (about US$1.01 billion) loan the state wants to take from Banco do Brasil to fund transport works. The case reached the court in mid-August 2026 and was distributed to Justice Flávio Dino as rapporteur.

The state filed what Brazilian law calls an ação cível originária. A type of suit the STF hears directly when a state squares off against the Union.

For a governor who has often clashed with the federal government, the move turns a bureaucratic delay into a public confrontation. It also puts a single ministerial signature at the heart of a national headline.

What the R$5.45 Billion Would Pay For

The loan is tied to a package of infrastructure and mobility projects rather than to general spending. The largest single slice, R$2.26 billion (about US$419 million), is earmarked for the Line 6-Orange metro.

A long-delayed subway line crossing São Paulo city. Another R$1.19 billion (about US$220 million) would go to works on the Rodovia dos Tamoios.

A highway linking the interior to the coast. A further R$962.8 million (about US$178 million) is set aside to extend Line 5-Lilac from Capão Redondo toward Jardim Ângela.

The remainder covers upgrades and expansions across several other rail lines and state ferry crossings. In short, the credit is meant to keep a queue of transport projects moving rather than to plug a budget hole.

What Banco do Brasil does. Banco do Brasil S.A., together with its subsidiaries, provides banking products and services for individuals, companies, and public sectors in Brazil and internationally. The company operates through Banking, Investments, Fund Management, Insurance (including insurance, private pension funds and capitalization) and Electronic Payments segments. Its Banking segment offers various products and services, including…

The Signature That Never Came

The loan itself would come from Banco do Brasil, but a state cannot simply borrow at that scale on its own credit. Large sub-national loans in Brazil typically need a federal guarantee.

An aval from the Union that makes the national government the backstop if the borrower fails to pay. That guarantee is what São Paulo says it is missing.

The paperwork runs through the National Treasury and the federal attorney’s office for public finance before reaching the Finance Minister’s desk for a final signature. According to the state, every technical stage has already been cleared.

The one remaining step, it argues, is a signature that has not arrived.

What São Paulo Is Asking the Court

The state’s petition asks the STF for an injunction, or liminar, ordering the Finance Ministry to issue the guarantee within 48 hours. That is an unusually tight deadline for a fiscal matter that normally moves at the pace of ministry review.

If the ministry does not act in that window. The state asks the court to let it proceed with the credit operation on its own.

In effect, São Paulo wants either the signature or permission to move without it. The request frames the delay as a legal problem rather than a policy choice.

That framing is what allows a lending question to be argued before the country’s highest court at all.

The Argument Over Equal Treatment

The core of São Paulo’s legal thesis is isonomy, the principle of equal treatment under the law. The state contends that its request has been held up without clear technical justification while other states have seen similar operations move faster.

It points to the earlier stages of the process to support that claim. The National Treasury issued a favorable opinion on the operation on 19 May 2026.

And the federal finance attorney’s office also signed off, according to the state’s account. From there, the state’s case is that only the final political sign-off is missing.

Whether the court accepts that a delay amounts to unequal treatment is the question Justice Dino must weigh.

How the Finance Ministry Responds

The Finance Ministry rejects the idea that anything unusual is happening. It says the operation is following the regular procedure, the trâmite regular, and is in its final stage of processing.

The ministry has also pointed to context: in an election year, demand for this kind of state credit runs higher than usual. It argues São Paulo’s request sits within normal timelines rather than outside them.

That leaves two competing stories before the court. One describes an unjustified freeze; the other describes a queue moving at its usual speed.

A File Waiting on a Desk

Much of the dispute turns on dates. The state says the favorable Treasury opinion came in May 2026 and that the file has since waited on the minister for a final decision.

By São Paulo’s count, it had waited 84 days for the dispatch before turning to the court. Reports differ on exactly when the file reached the minister’s desk, but agree it had been pending for weeks.

For the state, that stretch of time is the whole case. For the ministry, it is simply how a careful approval process looks from the inside.

Tarcísio and Haddad, Rivals Again — This Time on the Ballot

The federal signature in question belongs to Finance Minister Dario Durigan, who took over when Fernando Haddad left the ministry in March 2026 to run for governor of São Paulo. Haddad is now the PT candidate for governor of São Paulo, running against Tarcísio’s bid for re-election. The two contested the same office in 2022 and have already debated this cycle in São Paulo.

Having faced each other in the 2022 race for governor that Tarcísio won. That history gives the fiscal row an unmistakable political charge.

A guarantee stuck in the office of an electoral adversary is easy to cast as something more than paperwork. Both sides have an interest in how the story is read.

The state gains from framing the delay as obstruction, while the ministry gains from framing its process as routine and fair.

Why Loan Guarantees Matter for States

Brazil’s states do not borrow freely. Under national fiscal rules, big loans from banks or multilateral lenders usually require the Union to act as guarantor.

Which gives the federal government real influence over when and whether a state can borrow. That system is meant to protect the national treasury, since it is the Union that would pay if a state defaulted.

But it also hands Brasília a lever over governors, because a guarantee can be granted quickly, slowly or not at all. The recurring tension between São Paulo and the federal government sits inside this design.

When a state and the Union disagree over timing. The disagreement can only really be settled where São Paulo has now taken it.

What Happens Next

The immediate decision rests with Justice Flávio Dino, who can grant, deny or defer the requested injunction. His ruling would set the tempo, either forcing a quick answer from the ministry or leaving the file to its normal course.

Beyond the legal outcome, the case tests how far a state can use the courts to speed up a federal approval. A win for São Paulo could encourage other governors to try the same route when guarantees stall.

For now, the R$5.45 billion loan and the transport works behind it wait on the outcome. The projects are ready to be financed; what is missing is agreement on when the money can flow.

Frequently Asked Questions

What is the R$5.45 billion dispute about?

São Paulo wants a federal guarantee for a R$5.45 billion (about US$1.01 billion) loan from Banco do Brasil to fund transport works. It says the Finance Ministry is stalling the approval.

What is Tarcísio asking the Supreme Court to do?

He wants the STF to order the Finance Ministry to release the guarantee within 48 hours. If not, the state asks to be allowed to proceed with the loan on its own.

Why does a state loan need federal approval?

Large state loans in Brazil usually require a federal guarantee from the Union, which would repay lenders if the state defaulted. That gives the federal government a say over the timing.

What does the federal government say?

The Finance Ministry says the request is following the regular process and is in its final stage. It notes that demand for such credit is higher in an election year.

Sources: O Globo, Folha de S.Paulo, Gazeta do Povo.