Analysis: How much could the federal government shutdown cost the economy?

The Congressional Budget Office (CBO) estimates the ongoing federal government shutdown will reduce Q4 2025 economic growth by 1% for a four-week duration and 2% for eight weeks, with most losses recouped in Q1 2026. However, between $7 billion and $14 billion in economic output could be permanently lost, primarily from furloughed employees. This CBO projection carries significant uncertainty, as it relies on assumptions regarding retroactive pay for federal workers and SNAP benefits, and the full make-up of missed spending, which current administrative actions and statements may contradict.

Analysis

The Congressional Budget Office (CBO) projects a significant, albeit partially recoverable, economic impact from the ongoing federal government shutdown. A four-week shutdown is estimated to reduce Q4 2025 U.S. economic growth by 1%, escalating to a 2% reduction for an eight-week duration. While most of these short-term losses are expected to be recouped in Q1 2026, the CBO still forecasts a permanent economic output loss of $7 billion to $14 billion, primarily due to reduced productivity from furloughed federal employees.

However, the CBO's projections are underpinned by several critical assumptions that face considerable uncertainty. These include the retroactive payment of furloughed employees and missed SNAP benefits, as well as the full make-up of deferred government spending. Recent statements from President Trump questioning back pay for some federal workers, coupled with the administration's legal challenges to existing laws and unilateral spending shifts, directly contradict these foundational assumptions.

This discrepancy suggests the CBO's current estimate may be conservative, with the potential for a substantially larger economic hit if these assumptions prove incorrect. The administration's actions, such as diverting $5.3 billion for military pay and fighting court efforts for SNAP benefits, highlight the fragility of the CBO's baseline. The CBO itself acknowledges the high uncertainty and dependence on administrative decisions, indicating a fluid and potentially worsening economic outlook.

Key Decisions for Investors

• Investors should closely monitor the political resolution of the government shutdown, as CBO's baseline economic impact estimates carry significant downside risk if key assumptions regarding retroactive payments and spending recovery are not met
• Consider potential impacts on sectors reliant on government contracts or consumer spending, given the uncertainty surrounding federal worker pay and benefit disbursements
• Prudence dictates assessing portfolio resilience against a potentially larger-than-projected economic drag, especially if the shutdown extends beyond current expectations