Brazil and the War in Iran: How the Middle East Conflict Could Shake Up the Selic Rate and Your Wallet

The week started with a bang (literally) in global markets. The escalation of the war in Iran, following Israeli attacks on strategic sites in Tehran, isn't just another chapter in the tense Middle Eastern saga. For those living in Brazil, the sound of those distant explosions will reach us quickly—and, sooner than you might think, hit our wallets.

Forget the idea that international conflicts are someone else's problem. Brazil and the war in Iran might seem like distant topics, but the truth is, the dust kicked up in Tehran is already starting to haunt the Monetary Policy Committee (Copom) right here in Brasília. The flight plan charted by the Central Bank for 2026, which envisioned a smooth landing for interest rates, could hit turbulence at any moment.

The Core of the Conflict: Oil and Inflation

The first spark connecting Iran to Brazil is the price of oil. International markets are in panic mode. Any threat of disruption in the Strait of Hormuz—through which nearly a fifth of the world's oil passes—sends the price per barrel soaring. And Brazil, which recently became a major oil exporter, isn't immune to this rollercoaster.

For starters, gasoline prices at Petrobras refineries are tied to the international market. If oil prices spike abroad, a price adjustment at the pump is inevitable sooner or later. And when fuel costs go up, it's not just filling your gas tank that gets more expensive. Supermarket freight, food prices, bus fares... everything becomes a target for inflation. Financial market analysts are already crunching the numbers: a prolonged shock could send the IPCA (Brazil's broadest inflation measure) soaring, precisely when service inflation was starting to ease up.

The Central Bank's Dilemma: Cut the Selic or Hold Steady?

And this is where things get serious for our economy. The Central Bank had been signalling a cycle of Selic rate cuts for the second half of the year. The idea was to provide some relief for credit and stimulate economic activity. But the war in Iran has thrown a wrench in that plan.

• Upward Pressure: If inflation accelerates due to oil prices, the Central Bank is forced to hold interest rates steady, or even consider raising them again, to contain prices. It's the famous "bitter medicine" that cools down the economy.
• Skyrocketing Dollar: International conflicts drive investors toward safe havens, like the US dollar. With a more expensive American currency, imports become pricier and corporate foreign debt increases, creating further inflationary pressure.
• Total Uncertainty: No one likes to invest in the dark. The volatility caused by the war makes financial markets tighten credit and demand higher risk premiums. This stalls growth.

What was supposed to be a year of relief on interest rates could turn into a new nightmare of a high Selic rate for longer. Copom members, who were already divided on the pace of cuts, now have a powerful argument for the cautious approach.

A Guide to Understanding What Lies Ahead

If you're feeling lost about how to navigate this scenario, don't worry. Let's break down the main points so you can use this information to your advantage, whether in your investments or family planning.

In a context of Brazil and the war in Iran, diversification is key. Those with invested money need to understand that inflation-linked fixed-income assets (like IPCA+ bonds) could gain even more traction. Variable income, especially shares of companies linked to commodities (like oil and mining firms), tends to ride the wave of rising international prices. But caution: this is a high-risk game, for those with a strong stomach.

For the average Brazilian family, the message is clear: brace your budget for more pressure on food and fuel prices. Household planning needs to account for the fact that electricity bills (with tariff flags influenced by the cost of thermal power plants) could also get steeper if the government doesn't step in. And the dream of owning a home, financed with lower interest rates, might have to wait.

The Verdict: We Still Don't Know the Full Extent of the Damage

Right now, analysts worldwide are revising their reports. What was an optimistic scenario for the Brazilian economy at the start of the year now carries a giant question mark named 'Middle East'. The most honest guide I can give is: keep a close watch on the Central Bank's decisions and the next moves by Israel and Iran.

One thing is certain: the war in Iran is no longer just a foreign policy issue. It's now a topic of conversation at the bar, in the supermarket lineup, and at Copom meetings. And as every Brazilian knows, when the Selic rate sneezes, the whole country catches a cold.