Can the US change its debt path?
In the US, concern about debt sustainability is demonstrated by the latest projections which show US government debt rising from 100% of GDP in 2025 to 119% by 2035 (Figure 4) and continuing upwards to 156% in 2055, although developments over such a long period are subject to a great deal of uncertainty. In 2026, the sharks may be dissuaded from attacking the US bond market if the revenues generated from tariffs are sufficient to alleviate fears about debt sustainability. Most estimates forecast such revenues to be in the order of USD400bn per year.
Over the long-term, the extent to which Scott Bessent’s “3-3-3” plan (Theme 1) is successful will be key. It could markedly change the debt path, preventing an upward trend. In the late 1990s and early 2000s, the debt level fell rapidly and unexpectedly to 31% of GDP, primarily due to the strength of tax revenues and improving productivity. There was active discussion at the time about abandoning 30-year government bond issuance, regarding such debt as no longer necessary to finance the deficit. Although possible, such an extreme outcome seems unlikely to us. The more realistic outlook for 2026 is that the stabilisation in the level of debt expected under the Bessent plan as well as improving productivity due to AI implementation should be enough to alleviate fears about US debt sustainability.