In CBO’s projections, the federal budget deficit is $960 billion in 2019 and averages $1.2 trillion between 2020 and 2029. Over the coming decade, deficits (after adjustments to exclude the effects of shifts in the timing of certain payments) fluctuate between 4.4 percent and 4.8 percent of gross domestic product (GDP), well above the average over the past 50 years. Although both revenues and outlays grow faster than GDP over the next 10 years in CBO’s baseline projections, the gap between the two persists.
As a result of those deficits, federal debt held by the public is projected to grow steadily, from 79 percent of GDP in 2019 to 95 percent in 2029—its highest level since just after World War II.
Real (inflation-adjusted) GDP is projected to grow by 2.3 percent in 2019, supporting strong labor market conditions that feature low unemployment and rising wages. This year, real output is projected to exceed CBO’s estimate of its potential (maximum sustainable) level. After 2019, consumer spending and purchases of goods and services by federal, state, and local governments are projected to grow at a slower pace, and annual output growth is projected to slow—averaging 1.8 percent over the 2020–2023 period—as real output returns to its historical relationship with potential output. From 2024 to 2029, both output and potential output are projected to grow at an average pace of 1.8 percent per year, which is less than the long-term historical average. That slowdown occurs primarily because the labor force is expected to grow more slowly than it has in the past.