Bulk data
Download the data
Every figure on this site comes from U.S. Treasury Fiscal Data, which is in the public domain under 17 U.S.C. §105. These CSVs are the same numbers behind the charts, refreshed whenever the site rebuilds. Use them however you like — attribution is appreciated but not required.
Combined files
| File | Contents |
|---|---|
| average-interest-rates.csv | Average interest rates — all securities |
| interest-expense.csv | Monthly interest expense on public issues |
| national-debt.csv | Debt outstanding — daily, public vs intragovernmental |
| daily-bill-rates.csv | Treasury bill rates — daily, bank discount and coupon equivalent |
| daily-yield-curve.csv | Treasury par yield curve — daily, 1 month to 30 years |
| daily-real-yields.csv | TIPS real yield curve — daily, 5 to 30 years |
| exchange-rates.csv | Treasury reporting rates of exchange — all currencies |
Per-page files
Each security page and each currency page links to a CSV containing just that series — for example rates-treasury-bills.csv or fx-japan-yen.csv. Look for the download line beneath the chart.
If you want the data at its source instead, everything here is pulled from the Treasury Fiscal Data API, which is free and needs no API key.