Published on: 2026-07-29
Updated on: 2026-07-29
On June 8, 2026, the official JISDOR rate for the Indonesian rupiah fell to a record low of 18,171 per dollar, with the spot rate reaching 18,209 the next day. Since the conflict began in late February, the rupiah has lost about 7%, marking the weakest performance among major Asian currencies.
Bank Indonesia Governor Perry Warjiyo resigned on July 27, two years before his term ended. Senior Deputy Governor Destry Damayanti is serving as acting governor until President Prabowo Subianto nominates a successor, who must be confirmed by parliament within one month.
Foreign exchange reserves fell from $156.5 billion in December 2025 to $145.6 billion by the end of June, a $10.9 billion decrease. In the first quarter, both Moody’s and Fitch revised Indonesia's rating outlook to negative.
The rupiah’s initial 2026 record low of 16,985 on January 20 occurred five weeks before the war, during a period of dollar weakness. This timing distinguishes the oil shock from a separate institutional premium.
On July 22, Bank Indonesia maintained its policy rate at 5.75% during a board meeting led by Governor Perry Warjiyo, who also presented June’s reserve figures. Five days later, he resigned, two years before his term was set to end in 2028. The country now defends a record-low currency under an acting governor while awaiting a permanent appointment.
Indonesian assets face two premiums: an energy premium common to Asian oil importers due to high crude and freight costs, and an institutional premium unique to Indonesia, which is quantifiable.
Warjiyo’s resignation marks the third senior departure from Indonesia’s economic leadership in ten months. Finance Minister Sri Mulyani Indrawati, regarded as the fiscal anchor, was replaced by Purbaya Yudhi Sadewa on September 8, 2025. Deputy Governor Juda Agung also resigned immediately on January 13, 2026, before his term ended.
On January 19, President Prabowo nominated his nephew, Thomas Djiwandono, to the vacant board seat. The rupiah fell to a then-record 16,985 per dollar the next day, five weeks before the war and despite a weakening dollar. This early record reflects the Jakarta discount: the portion of rupiah weakness linked to institutional announcements rather than crude prices.
| Date | Event | Market reading |
|---|---|---|
| Sep 8, 2025 | Sri Mulyani replaced as finance minister by Purbaya Yudhi Sadewa | Fiscal anchor question opens |
| Jan 13, 2026 | Deputy Governor Juda Agung resigns with immediate effect | Board seat becomes vacant |
| Jan 19–20, 2026 | Prabowo nominates his nephew Thomas Djiwandono; rupiah hits a then-record 16,985 | Record low precedes the war |
| Feb 5, 2026 | Moody’s cuts Indonesia’s outlook to negative; Fitch follows in March | Downgrade risk enters pricing |
| Feb 9, 2026 | Djiwandono sworn in for 2026–2031; Agung moves to the finance ministry | Cross-institution leadership swap |
| Jun 4, 2026 | Parliament expands BI’s objectives to include growth and makes lawmakers’ recommendations binding | Rupiah hits a then-record 18,045 |
| Jun 8–9, 2026 | JISDOR posts a record 18,171; spot rate touches 18,209; BI hikes off-cycle | Energy and institutional premiums compound |
| Jul 27, 2026 | Perry Warjiyo resigns; Destry Damayanti becomes acting governor | Central-bank succession clock starts |
To measure the discount, compare a basket of Asian oil-importer currencies and analyze key event dates. The rupiah fell toward 18,000 within hours of the resignation, without any oil or dollar catalyst, mirroring the January pattern. Moody’s cited “reduced predictability in policymaking” when it downgraded the outlook in February.
Reserves fell from $156.5 billion in December 2025 to $144.9 billion by May, the lowest since June 2024, before recovering to $145.6 billion in June. Bank Indonesia attributed this recovery to tax and services receipts, with ongoing intervention. Import and debt-service coverage fell to 5.4 months, and a $3.25 billion global bond issuance in May supported the headline figure.
Intervention across spot and domestic forward markets has built Bank Indonesia a net short foreign currency position near $27 billion as of end-May, according to Fitch’s July 1 commentary. The agency projects reserve coverage of 4.9 months of external payments in 2026, below the 5.0-month median for BBB-rated sovereigns, and warned that a sustained, sharp decline in reserves “could add pressure on the sovereign rating.”
Defending the currency signals future policy, but an acting governor can only offer short-term assurances. As a result, each intervention dollar now provides less stability than it did in April under a governor with a full term. The July 22 decision reflected this limitation: instead of a fourth rate hike, Bank Indonesia relied on SRBI yields, lower hedging costs, and direct intervention, as detailed in EBC’s analysis.
The rupiah now trades below its 1997-98 crisis trough in nominal terms, yet the episodes share little beneath the exchange rate. In 1998 Indonesia carried a pegged currency, collapsing corporate dollar debt, and nearly empty vaults. In 2026, Indonesia’s economy holds $145.6 billion in reserves, grew 5.11% in 2025, runs a projected fiscal deficit of 2.85% of GDP inside the 3% legal ceiling, and floats its currency.
Previously, the country ran out of dollars. Now, it is using reserves to offset a leadership vacuum, but reserves can be replenished more quickly than credibility. Broader factors, including the $9.1 billion first-quarter balance of payments deficit, are detailed in EBC’s six-driver rupiah breakdown.
A presidential decree dated February 11, 1998 dismissed Bank Indonesia Governor Soedradjad Djiwandono as the rupiah collapsed, and he learned of it six days later. On February 9, 2026, two days short of twenty-eight years later, his son Thomas was sworn in as deputy governor of the same institution, nominated by his uncle, President Prabowo Subianto.
Indonesian law requires the president to submit candidates to the House of Representatives, where Commission XI conducts a fit and proper test and parliament decides within one month. As of July 29, no candidate had been submitted. Finance Minister Purbaya, considered a potential candidate, stated, “We are following the President’s orders.”
There are three possible outcomes. Confirming a career technocrat such as Destry Damayanti or another Bank Indonesia insider could reduce the institutional premium and return USD/IDR toward its pre-resignation range. Appointing Purbaya from the finance ministry would merge fiscal and monetary leadership, while selecting a candidate from outside the technocratic pool could push markets back to the June record of 18,209.
On June 4, parliament expanded Bank Indonesia’s objectives to include growth and made lawmakers’ recommendations binding. Danantara, the state investment authority, will join the Financial System Stability Committee, and the acting governor was summoned to the presidential palace within a day of taking office. Starting September 1, Danantara’s subsidiary DSI will route coal, crude palm oil, and ferroalloy exports through a single state gateway, consolidating commodity dollars in an institution now involved in stability decisions.
Parliament’s budget commission projects a 2026 deficit of 2.85% of GDP, higher than the budgeted 2.68% and near the 3% statutory ceiling. The free nutritious meals program is allocated 335 trillion rupiah this year, about 1.4% of GDP and 550% above 2025 spending, supporting an 8% growth target for 2029 compared to 5.11% last year. The $1.16 billion trade deficit in May, Indonesia’s first in six years, eliminated the external cushion.
Fiscal expansion is now offset by tighter monetary policy. The Economist Intelligence Unit forecasts a 6.00% policy rate by year-end, while Bank Danamon’s economists project 6.25%. Rising SRBI yields are attracting bank funds to risk-free assets and away from lending. Of the $8.5 billion in foreign inflows during the first half, most went into bonds and SRBI, while equities saw outflows, indicating capital is seeking yield rather than long-term growth.
Expansionary fiscal announcements from Jakarta now act as tightening signals, since a central bank without a permanent governor must defend the currency with limited tools. This reverses the typical emerging market pattern, where spending news is seen as growth news.
Three clear indicators could reduce the Jakarta discount: confirming a permanent governor with market-tested credentials within the statutory month, maintaining reserves above $145 billion in consecutive reports without new restrictions on dollar purchases, and keeping USD/IDR below the 18,171 JISDOR record during periods of negative news.
Until these indicators are met, the rupiah will continue to reflect both premiums, with only the energy premium likely to diminish if a lasting ceasefire occurs. For traders monitoring USD/IDR into late 2026, the succession timeline is now more important than oil prices, as the president’s nominee will determine the currency’s next range.
