U.S. National Debt

What this page shows

The large number above is a live estimate, not an official figure: it starts from the U.S. Treasury's most recently published total and ticks upward (or downward) in your browser at the trailing 12-month average daily rate of change. The Treasury only publishes an authoritative total once per business day — that official number, with its as-of date, is always shown directly below the estimate.

Full detail on data sources, update cadence, and the exact math behind the live estimate is on the methodology & sources page. Want this number on your own site? Grab a widget.