ECONOMY · BRAZIL
Published Thursday, 29 October, 1:42 p.m. ET · Source: Banco Central do Brasil
Key Facts
- The number Gross debt held at 82.9% of gross domestic product (GDP) in September, the highest since March 2021.
- What changed Net debt rose 0.7 points to 70.0% of GDP, the highest since the series began in December 2001.
- The cost Over 12 months the public sector’s deficit, interest included, ran at 9.51% of GDP, versus 0.52% before interest.
- What is next Brazil’s central bank sets its interest rate, now 13.75%, on Wednesday, 4 November.
- Prediction markets Bettors on Polymarket, a prediction market, put 70.0% odds on Brazil holding its rate on 4 November (29 October, 1:39 p.m. ET).
Brazil’s debt problem did not get worse in September, but it did not get better either. Gross debt stayed at 82.9 percent of GDP, Brazil’s central bank said on Thursday (29 October), matching August and sitting at its highest level since March 2021.
That is a heavy load for Brazil’s economy, the biggest in Latin America. For dollar investors, it is the number behind the country’s borrowing costs and the real, the local currency.
In plain English
Gross debt is everything the federal, state and city governments owe, measured against a year of national output (GDP). Net debt subtracts what the government owns, such as cash and reserves.
Primary result is tax income minus spending before interest. Nominal result adds the interest bill on top.
Why Net Debt Hit a Record
Net debt is the figure that moved. It climbed from 69.3% of GDP in August to 70.0% in September, the highest in the central bank’s series, which starts in December 2001.
Gross debt, by contrast, was flat at the one-decimal level. Its exact reading was 82.93%, against 82.87% a month earlier.
The record does not come from a spending splurge. The public sector ran a primary deficit of only R$5.5 billion (about US$1.0 billion) in September, a small gap on an economy this size.
Interest Is the Real Bill
Once interest is added, the picture changes sharply. Over 12 months, the nominal deficit, which counts the cost of servicing the debt, has run at 9.51% of GDP.
The primary deficit over the same period is just 0.52% of GDP.So almost the entire gap is interest.Brazil’s benchmark rate, the Selic, stands at 13.75% a year.
What It Means for US Readers
For anyone holding Brazilian bonds, the real or Brazil-focused funds such as EWZ, the main US-listed exchange-traded fund (ETF) tracking Brazilian stocks, debt is the slow-burning risk behind the daily headlines. A rising ratio can push investors to demand higher yields, which feeds back into the interest bill.
The real traded at about R$5.42 per US dollar on Thursday, market-data provider RT shows, weaker by roughly 1.3% on the day.
What Prediction Markets Say
On Polymarket, a crypto-based prediction market, traders put 70.0% odds on no change to Brazil’s rate at the 4 November decision, with 27.5% on a quarter-point cut. About US$118,000 has been traded on that market, as of 1:39 p.m. ET on 29 October.
These prices are bets, not polls. Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely.
We show them next to polls and official results, never instead of them.
What Is Not Known
The data do not say when the debt ratio will peak. That depends on interest rates, growth and the budget choices of the next government.
It is also unclear whether the central bank will cut or hold its rate. Its decision on 4 November, and the Selic guide for foreign investors, are the next places to look.
Earlier debt readings are in our August debt report.
Frequently Asked Questions
How high is Brazil’s debt?
Gross debt of all governments was 82.9% of GDP in September, the highest since March 2021. Net debt was 70.0%, the highest since records began in 2001.
Why is the debt rising if the primary deficit is small?
Interest costs are the main driver. The overall deficit, with interest, ran at 9.51% of GDP over 12 months, against a primary gap of 0.52%.
Sources: Banco Central do Brasil, fiscal statistics for September 2026, released 29 October 2026 (gross debt series, net debt series, primary result series); RT exchange-rate data, 29 October 2026; Polymarket, 29 October 2026.
More: Brazil news, every day from The Rio Times.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
LatAm Markets: Live Signals → — real-time movers, turnover leaders and FX across Latin America.
Brazil runoff, Sunday, October 25: Brazil runoff: date, poll closing times and when results start. Latest: Brazil runoff polls, Flávio 51%, Lula 49%.