Indonesia’s foreign exchange reserves dropped by US$4.6 billion in April, the largest decline since May 2023, totaling US$152.5 billion.

This decrease was attributed to government debt payments and Bank Indonesia’s interventions to stabilize the rupiah.

Despite a record low on April 9, the rupiah has rebounded by 2.8% due to central bank actions in the offshore non-deliverable forwards market. As of May 8, it was stable at 16,543 against the US dollar.

The central bank’s efforts have come at a high cost, with reserves declining despite a new policy requiring natural resource exporters to keep dollar earnings onshore for at least a year.

🔗 Source: Bloomberg

🧠 Food for thought

1️⃣ Currency interventions: a costly but necessary tool for emerging markets

Indonesia’s $4.6 billion reserve drop reflects the high cost of currency stabilization during global volatility.

The central bank’s intervention in both spot markets and offshore non-deliverable forwards demonstrates the multifaceted approach required to defend emerging market currencies 1.

This pattern of expensive intervention during crisis periods mirrors Indonesia’s actions during the 1997 Asian Financial Crisis, when the rupiah lost up to 80% of its value despite aggressive central bank support 2.

For perspective, Indonesia’s reserves are maintained to cover approximately six months of imports, making this $4.6 billion reduction significant for the country’s economic buffer 3.

Bank Indonesia’s commitment to taking “bold action” to maintain rupiah stability signals continued willingness to deploy reserves despite their rapid depletion 4.

2️⃣ Export proceed regulations: Indonesia’s evolving approach to currency stability

The recent regulation requiring natural resource exporters to retain 100% of their proceeds in local banks for 12 months represents an intensification of a policy approach Indonesia has employed since 2012 5.

This export proceed retention rule aims to strengthen foreign currency liquidity within the domestic banking system without directly depleting reserves 5.

Despite implementing this policy in March 2025, the significant April reserve drop indicates that regulatory approaches alone have been insufficient to stabilize the currency in the face of external pressures 5.