Gross Federal Debt as % of GDP

Total public debt relative to economic output — the headline solvency metric.

Exclude COVID

122.6%

Trend YoY growth is +2.2%, slowing by 3 bps/year over the last 25Y. Deviations have remained below trend for 10 consecutive periods. Latest: +2.0%, 13 bps below trend, a 0.02σ deviation. The latest YoY reading is boosted by 215 bps due to an easy comparison base from Jan 1.

Level

YoY Change

y = 3.0% 3 bps/yr · t

Deviation from trend

Forecast

Projected value by forecast vintage (%)

Projected value (%)

Forecast made inQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26Q1 '27Q2 '27MAPE
Q2 '25118.8122.6124.2123.6122.1124.7126.5126.9126.7121%
Q3 '25121.0123.7123.1121.6124.1125.9126.2125.463%
Q4 '25122.6122.5120.9123.3125.0125.2123.77%
Q1 '26122.6119.9122.2123.7123.7121.0
Q2 '26119.9122.2123.7123.7121.0

YoY change forecast

Forecast made inQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26Q1 '27Q2 '27MAPE
Q2 '25-0.7%+2.4%+2.7%+3.0%+3.3%+3.7%+4.0%+4.3%+4.6%121%
Q3 '25+0.9%+2.3%+2.5%+2.8%+3.1%+3.3%+3.6%+3.9%63%
Q4 '25+1.1%+1.9%+2.1%+2.3%+2.4%+2.6%+2.8%7%
Q1 '26+2.0%+1.2%+1.1%+1.1%+1.1%+1.0%
Q2 '26+1.2%+1.1%+1.1%+1.1%+1.0%

Forecasts use ordinary least-squares linear regression fitted to the YoY change series over a rolling 3Y window. Each row shows a vintage — the forecast as it would have appeared at that point in time. Projected values apply the forecasted YoY change to the prior year's level, chaining forward where actuals are unavailable. MAPE measures forecast accuracy against realized values. These are mechanical trend extrapolations, not economic models.