Indonesia's BI Rate Among World's Most Aggressive, Trailing Only Rwanda and Sri Lanka

Bank Indonesia (BI) has again raised its benchmark interest rate. During the Board of Governors Meeting (RDG) on 17-18 June 2026, the BI Rate was increased by 25 basis points to 5.75%.

This decision makes BI’s actions over the past month appear very aggressive. Since the May 2026 RDG, BI has hiked the benchmark rate three times, with a total increase of 100 basis points.

At last month’s RDG on 19-20 May 2026, BI first raised the BI Rate by 50 basis points from 4.75% to 5.25%. The increase continued at the weekly RDG on 9 June 2026, with a 25 basis point hike to 5.50%. Most recently, BI added another 25 basis point increase at the 17-18 June 2026 RDG, bringing the BI Rate to 5.75%.

Thus, the BI Rate surged from 4.75% to 5.75% in a span of roughly one month. This move indicates BI is choosing a path of rapid tightening amid pressure on the rupiah, global financial market volatility, and inflation risks stemming from energy prices and geopolitical tensions.

An increase of this magnitude is also relatively rare in Indonesia’s monetary policy history. Based on historical data, the last larger increase occurred in 2005, when the BI Rate rose 125 basis points in about one month, from 11.00% in October 2005 to 12.25% in November 2005. This means BI’s tightening in 2026 is one of the most aggressive in the last two decades.

Not only from a domestic perspective, BI’s move also places Indonesia among the ranks of countries with the most aggressive interest rate hikes throughout 2026. Indonesia stands alongside Rwanda and Sri Lanka, which have also raised their benchmark rates by 100 basis points or more this year.

Indonesia is not the only country taking major steps in interest rate policy. In 2026, several other central banks have also chosen an aggressive path due to facing quite similar pressures, ranging from price inflation to currency depreciation.

One of them is Rwanda. According to Trading Economics, Rwanda’s central bank (National Bank of Rwanda) recently raised its benchmark interest rate by 100 basis points to 8.25% at its May 2026 meeting. That level is the highest since 2009. The hike was made after Rwanda had previously also raised its interest rate by 50 basis points in February 2026. Throughout this year, Rwanda’s central bank has raised its interest rate by 150 bps.

The main reason is resurgent inflation. Price pressures in Rwanda have intensified after the conflict in the Middle East pushed up energy and other essential goods prices. Rwanda’s inflation rose to 11.5% in April 2026, from 7.7% the previous month. This figure is the highest since October 2023 and marks the first time Rwanda’s inflation has returned to double digits in nearly three years. Rwanda’s central bank considers the rate hike necessary to contain the knock-on effects of price increases. The monetary authority there also aims to bring inflation back within the 2%-8% target range.

Besides Rwanda, Sri Lanka has also taken major steps in tightening its monetary policy. The Central Bank of Sri Lanka raised its benchmark interest rate by 100 basis points to 8.75% at its May 2026 meeting. This is Sri Lanka’s first rate hike since March 2023. The decision was taken to curb inflation while supporting the pressured Sri Lankan rupee. Pressure on the currency increased amid soaring energy costs due to the Iran conflict.

Sri Lanka’s rate hike also surprised the market. Previously, market participants had only expected an increase of around 25 basis points or slightly higher. However, faster-arriving inflationary pressures led the central bank to opt for a much larger move. Sri Lanka’s inflation rose to 5.4% in April 2026, from 2.2% in March 2026. This figure has already exceeded the central bank’s target of 5%. The greatest pressure came from sharp increases in domestic energy prices. Persistently high global oil prices increased Sri Lanka’s energy import burden, while the rupee exchange rate also came under pressure. The Sri Lankan rupee has weakened by about 8.7% since early March 2026. To dampen the pressure, the local government has even implemented fuel rationing, raised electricity tariffs, and restricted imports.

Not only developing countries, the central bank of a developed nation like Japan has also taken tightening steps this year. The Bank of Japan (BoJ) raised its short-term interest rate by 25 basis points to 1.0% at its latest meeting this June. The decision was taken by a 7-1 vote and was in line with market expectations. This hike is noteworthy because it brings Japan’s interest rate to its highest level since September 1995. The move also marks the BoJ’s first rate hike in 2026.

As a note, the BoJ’s policy has for years been known as very loose, maintaining interest rates at very low levels and even staying in negative territory for quite a long time. These conditions have been exploited by investors to run carry trade strategies, namely borrowing funds from low-interest-rate countries like Japan to place in assets of other countries offering higher yields. However, as the direction of BoJ’s monetary policy changes, the appeal of carry trade strategies has begun to diminish. Japan’s rate hike makes funding costs more expensive, prompting investors to become more cautious in taking risky positions. The BoJ’s decision was taken to prevent the surge in energy prices due to the Iran war from spilling over more broadly into domestic inflation. In its statement, the BoJ policy board assessed that Japan’s core inflation risks moving above the 2% target if energy price pressures persist.