Restoring confidence, squeezing the middle class

Bank Indonesia's (BI) decision to raise the BI Rate to 5.75 percent may help defend the rupiah, but someone will ultimately have to pay the price. Increasingly, that burden appears to be falling on Indonesia’s middle class.

Already grappling with weakening purchasing power and slowing consumption, many households now face the prospect of higher mortgage payments, more expensive vehicle loans and tighter access to credit as banks adjust lending rates. With investor concerns over fiscal risks and government spending continuing to linger, the latest rate hike raises a broader question: In the effort to restore market confidence, is Indonesia’s middle class once again footing the bill?

The pace of BI’s monetary tightening has been unusually aggressive. In less than a month, the central bank raised its benchmark interest rate by a cumulative 100 basis points to 5.75 percent, including an unscheduled increase on June 9 after the rupiah briefly weakened beyond Rp18,000 against the US dollar.

The strategy is economically defensible. Higher interest rates widen the yield differential with the US Federal Reserve, helping stabilize the rupiah by attracting foreign capital and anchoring inflation expectations. But monetary policy is never cost-free. While the benefits are shared across the broader economy through greater financial stability, the adjustment is likely to fall disproportionately on one group: Indonesia’s middle class.

For middle-class households, the impact of higher interest rates will be felt most directly through mortgages. Most home loans (KPR) begin with fixed promotional rates before shifting to floating rates, meaning the recent BI Rate hikes will gradually translate into higher monthly repayments as banks pass on rising funding costs. For a Rp 500 million mortgage with a 15-year tenor, a half-percentage-point increase from 10 percent to 10.5 percent would add roughly Rp170,000 to monthly repayments. The increase may appear modest, but it compounds alongside sluggish wage growth, persistently high food prices and a weaker rupiah.

The irony is that while lower-income households remain protected through subsidized FLPP mortgages with fixed interest rates of 5 to 6 percent, the middle class falls outside that safety net. Indonesia Property Watch CEO Ali Tranghanda estimates mortgage rates could rise by one to two percentage points, with every one-percentage-point increase reducing mortgage demand by 4 to 5 percent, making homeownership increasingly unattainable for aspiring middle-class families.

The burden extends beyond the housing market. Indonesia's automotive sector, another industry heavily dependent on financing, is also expected to come under pressure. While existing vehicle loans are generally protected by fixed-rate contracts, prospective buyers are likely to face higher borrowing costs as banks pass on rising funding costs to multifinance companies, which obtain most of their financing from bank loans.

At the same time, a weaker rupiah is expected to push up vehicle prices by increasing the cost of imported components. The timing could hardly be worse. Wholesale car sales had already fallen 14.3 percent month-on-month to 69,219 units in May, even before the latest BI Rate hike. As financing becomes more expensive and purchasing power continues to weaken, more middle-class households are likely to postpone major purchases, adding further pressure to an already slowing automotive market.

None of this suggests that BI made the wrong decision. The rupiah needed defending, and tighter monetary policy was justified. But the latest rate hikes were also driven by growing market concerns over Indonesia's fiscal credibility. When monetary policy is forced to restore confidence that fiscal policy has weakened, the burden is not borne by those whose decisions unsettled investors.

There is a striking asymmetry in who bears the cost of higher interest rates. Wealthier households can benefit from rising deposit rates, while lower-income families remain partially protected through subsidized housing and government-backed financing. It is the middle class that is left exposed: earning too much to qualify for assistance, yet lacking the financial buffers needed to absorb higher borrowing costs. The bill is ultimately paid not in financial markets, but around kitchen tables across Indonesia.

Markets demanded reassurance after confidence in Indonesia's fiscal discipline began to waver. BI delivered that reassurance through aggressive monetary tightening. But confidence is never restored without cost. While investors may have regained certainty, the burden of rebuilding that trust is now being transferred to the middle class through higher borrowing costs, weaker purchasing power and reduced economic mobility. If restoring confidence requires squeezing the very households that drive domestic demand, today's remedy may become tomorrow's drag on economic growth.