Mandatory programs took 60% of federal spending in the fiscal year through September 2026, discretionary 26% and net interest 14%
Mandatory 59.9%, discretionary 26.2%, net interest 13.8% a year earlier · net interest +8.4% on last year · the mandatory and discretionary split is estimated for each budget line
Macro · Macro · U.S. Treasury (Monthly Treasury Statement) · 29 Sep 2026