Bank Indonesia Leaves Its Key Rate at 5.75% as Borrowing Costs Stay at a Multi-Year High
Bank Indonesia held the BI-Rate at 5.75% on 19 August, keeping mortgage funding costs a full point above where they stood in February 2026.
Bank Indonesia's Board of Governors met on 18–19 August 2026 and left the BI-Rate at 5.75%, with the deposit facility at 4.75% and the lending facility at 6.50%. Every one of the ten economists surveyed by Bisnis ahead of the meeting expected exactly that. The number to hold on to is not the decision but the level: the policy rate was 4.75% as recently as February, and the June meeting's quarter-point increase took it to where it now sits.
A tightening cycle that ran through the buying season
The central bank raised rates on 18 June 2026 to 5.75%, describing the move as pre-emptive support for the rupiah and for the 2.5±1% inflation target covering 2026 and 2027. August's statement kept that framing, pointing to global volatility linked to conflict in the Middle East. For a domestic buyer, the practical translation is that the reference cost of bank funding has risen by a full percentage point over roughly six months, and the August decision confirms it is not coming back down this quarter. Of the economists polled, 60% read the stance as neutral from here and 40% as hawkish — nobody in that sample expected a cut.
What it means for the two Indonesian markets investors actually buy
Indonesia's national residential average sits at $2,113 per square metre in Glopra's 17 August 2026 snapshot, on a gross rental yield of 8.3%. That yield is genuinely high by regional standards, but it comes with a price-to-income ratio of 25.5 and a bubble score of 73, in the elevated band — a market where domestic affordability is stretched and where a higher policy rate bites domestic demand hardest.
Bali behaves differently. The island averages $2,341 per square metre with a gross rental yield of 5.8%, and its bubble score of 21 places it in the moderate band. Bali's buyer base is disproportionately foreign and cash-financed, which insulates it from the BI-Rate in a way the national market is not insulated. The trade-off there is structural rather than monetary: foreign purchasers cannot hold full freehold title, so the position is a use right or a lease, and Glopra flags the Bali price data at low confidence because the underlying sample is thin.
The currency line under the numbers
Rupiah stability is the stated reason for holding, and it is also the reason a dollar-based investor should read Indonesian returns twice. Glopra records Indonesian prices as 0.62% higher over twelve months in local terms but 8.4% lower measured in dollars — the gap is the currency, not the property. A central bank that keeps rates high to defend the rupiah is, from that angle, defending the dollar value of an existing position as much as it is restraining domestic credit. None of this is a recommendation; it is the arithmetic that sits between a local price index and a foreign owner's actual outcome.
Sources: Antara (19 Aug 2026) https://www.antaranews.com/berita/5701356/bi-umumkan-bi-rate-tetap-575-persen-pada-rdg-agustus-2026; Bisnis.com (19 Aug 2026) https://finansial.bisnis.com/read/20260819/11/1997393/rdg-bank-indonesia-agustus-2026-tahan-bi-rate-di-575; Bank Indonesia news release (18 Jun 2026) https://www.bi.go.id/id/publikasi/ruang-media/news-release/Pages/sp_2812626.aspx