DBS Bank Sees Room for 50bps Indonesia Rate Hike in 2026 if Rupiah Weakens

DBS Bank says Indonesia still has room for another 50 basis points of interest-rate increases in the second half of 2026 if the rupiah weakens further and geopolitical tensions remain elevated, according to the bank’s executive director and senior economist, Radhika Rao, in comments reported by Bloomberg.

Rao’s assessment comes as Indonesia’s central bank is operating under a newly expanded mandate that goes beyond price stability. According to Bloomberg Economics, Indonesia has broadened Bank Indonesia’s objectives to include support for real-sector growth, while also giving parliament the power to evaluate the central bank’s performance.

That combination matters because it puts Bank Indonesia in a more politically charged position at a time when policymakers are trying to balance currency stability, growth, and inflation. If the rupiah comes under pressure, additional rate hikes could help defend the currency, but they could also make borrowing more expensive for households and businesses.

The Bloomberg report on Rao’s comments said the outlook for more tightening depends in part on continued rupiah slippage and prolonged geopolitical tensions. That suggests the case for higher rates is not a base forecast, but a conditional one tied to market and external developments.

The policy backdrop is important for investors because it signals that Indonesia’s central bank may face more scrutiny over how it responds to financial-market stress. With parliament now empowered to evaluate the monetary authority’s performance, Bank Indonesia may need to weigh not only inflation and exchange-rate risks, but also growth expectations and political oversight.

For Indonesia’s economy, the stakes are straightforward: tighter monetary policy could help stabilize the currency, but it may also slow credit growth and dampen activity in the real economy. That tension is likely to shape any debate over the next move from Bank Indonesia if the rupiah weakens further in the months ahead.