Federal Police Probe Flávio Bolsonaro BRB Loan in Bank Master Scandal
Brazilian investigators probe a R$ 3.1 million state-bank loan granted to presidential candidate Flávio Bolsonaro, raising political risk before the runoff.
Brazil’s Federal Police have opened a new front in a widening financial investigation, targeting a R$ 3.1 million ($560,000) real estate loan granted to Senator Flávio Bolsonaro. The senator, who is currently running for the presidency, is under scrutiny over whether he received preferential treatment from the state-owned Banco de Brasília (BRB) to purchase a R$ 6 million luxury mansion in the capital's upscale Lago Sul neighborhood in 2021.
The investigation, first reported by O Globo on October 2, 2026, focuses on the highly favorable terms of the 30-year mortgage. Federal investigators are examining why the bank granted the eldest son of former President Jair Bolsonaro an interest rate of 3.71% per year plus inflation (IPCA), when BRB's average market rate for similar transactions at the time was 4.85%. Although the loan was structured for a 30-year term, the senator managed to fully pay off the R$ 3.1 million debt in just three years.
This real estate probe has been folded into a much larger federal investigation into systemic financial irregularities involving BRB and the private investment bank Banco Master. The broader scandal has already shaken Brazil’s financial and political establishments, culminating in the arrest of former BRB president Paulo Henrique Costa, who led the state bank when Flávio Bolsonaro's loan was approved. An independent audit commissioned by BRB's new management flagged the transaction as irregular and delivered its findings to the Federal Police in February.
Political Fallout Ahead of the Runoff
The timing of the investigation injects severe political risk into Brazil’s ongoing presidential election cycle. Flávio Bolsonaro is currently campaigning as a leading contender, and the sudden revival of his real estate dealings has handed ammunition to his political opponents. President Luiz Inácio Lula da Silva seized on the development during an October 9 campaign rally, declaring that Brazil would not be governed by "associates of Master" or "relatives of Vorcaro," referring to Daniel Vorcaro, the founder of Banco Master who is also central to the federal probe.
Senator Bolsonaro has strongly denied any wrongdoing. He maintains that the real estate transaction was entirely legal, citing his monthly senatorial salary of R$ 56,000 alongside private business income—including a past investment in a chocolate franchise—as the legitimate sources of funds used to rapidly accelerate the mortgage payments.
What it touches
While the scandal primarily drives political risk, it directly exposes Banco de Brasília (BRB), which is publicly traded on the Brazilian stock exchange (B3: BSB3). The ongoing Federal Police investigation and the arrest of its former president threaten the state-controlled bank's governance reputation and could impact its credit rating, potentially affecting its partnership agreements and municipal funding operations.