IMF warns advanced economies on rising debt costs

The IMF said yields have risen by about 110 basis points on average since late February, driven by inflation expectations, higher energy prices linked to the Iran war and central banks keeping rates elevated to contain price pressures. That combination is pushing up the cost of rolling over debt just as governments face fresh spending demands for defense, aging populations and other priorities.

For investors, the key risk is that sovereign debt service starts crowding out other spending and adds volatility to bond markets that have already repriced sharply. The IMF projects governments’ average interest payments will rise to 3.7% of GDP by 2031 from 2.3% in 2021, while US interest costs are seen climbing to 5.7% of GDP, roughly equal to projected Social Security spending.

The warning also matters for emerging markets, which the IMF said could be hit if higher benchmark yields in advanced economies tighten global financial conditions. Shorter maturities make that transmission faster, Dabla-Norris said, because changes in monetary policy feed through to government borrowing costs more quickly.

Treasury-tracking funds reflected the pressure. The iShares 20+ Year Treasury Bond ETF, TLT, has slid below both its 50-day and 200-day moving averages, with its RSI reading deeply oversold before stabilizing, while the shorter-duration IEF and SHY funds have held up better. Adalytica trade signals show heightened fear around US Treasuries and extreme fear in broader equity risk sentiment.

The IMF’s prescription is fiscal consolidation now, before markets force a sharper adjustment later. That puts the debate squarely on governments to explain spending cuts or tax increases to voters, even as the Fund warns that delaying action only raises the eventual bill.