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How much US Treasury debt was due within a year on 31 August 2021?

On , $6.62 trillion of marketable US Treasury debt was due within 12 months, 10.4% less than a year earlier ($7.39 trillion on ), the smallest amount since .

September 2021 is the largest month, with $1.35 trillion

Marketable Treasury debt maturing each month, $ trillion

  • Bills
  • Notes and bonds
  • TIPS and floating rate notes
September 2021 is the largest month, with $1.35 trillion0.000.501.001.50Sep1.35Oct1.06Nov0.97Dec0.64Jan0.53Feb0.50Mar0.19Apr0.30May0.27Jun0.19Jul0.32Aug0.30September 2021 is the largest month, with $1.35 trillion0.000.501.001.50SepNovJanMarMayJul

Source: U.S. Treasury, Fiscal Data, Monthly Statement of the Public Debt. Observed .

Each month as a table
Marketable Treasury debt maturing each month ($ million)
Maturing inTotalBillsNotesBondsTIPSFRNsSecurities
September 20211,353,6891,209,462144,22700013
October 20211,062,512859,164145,2370058,11014
November 2021971,834716,771224,43130,6320016
December 2021644,577495,292149,28500013
January 2022526,749271,866147,288049,53158,06410
February 2022495,847260,735235,1110009
March 2022185,70335,210150,4920005
April 2022302,94038,008151,400049,62263,9107
May 2022273,89838,260235,6380006
June 2022194,75637,331157,4240005
July 2022315,54038,166158,229048,42470,7217
August 2022295,17637,847247,20110,128007
All of these months6,623,2194,038,1122,145,96440,760147,577250,806112

The table scrolls sideways; the first column stays in place.

What is all marketable debt made of?

KindAmount, $ millionShare
Bills4,038,11218.4%
Notes12,411,87756.6%
Bonds3,294,08015.0%
TIPS1,628,6337.4%
Floating rate notes553,3662.5%
All marketable debt21,926,069100.0%

Bills, the securities that mature within a year of issue, made up 18.4% of marketable debt at the month-end and 61.0% of what matures in the months above.

Weighted by amount, marketable debt had 70.8 months to go until it matures, on average, at the month-end.

How does it compare with a year earlier?

Debt due within the next months ($ million)
Month-endTotalBillsBills share
31 August 20216,623,2194,038,11261.0%
31 August 20207,391,2515,076,72168.7%

About these figures

The Federal Reserve's part and the source

How much of it did the Federal Reserve hold?

Maturing debt held in the Federal Reserve's System Open Market Account ($ million)
Maturing inTotalHeld by the FedFed share
September 20211,353,689117,5718.7%
October 20211,062,51299,4009.4%
November 2021971,834137,98214.2%
December 2021644,57783,97113.0%
January 2022526,74979,59915.1%
February 2022495,847118,46623.9%
March 2022185,70349,49926.7%
April 2022302,94050,21316.6%
May 2022273,89899,54936.3%
June 2022194,75649,27125.3%
July 2022315,54056,87218.0%
August 2022295,176111,04237.6%

Source: Federal Reserve Bank of New York, SOMA holdings. Observed .

Source

Source: U.S. Treasury, Fiscal Data, Monthly Statement of the Public Debt. Observed .

Sources and licence

Sources and licence

  • U.S. Treasury, Bureau of the Fiscal Service, Fiscal Data (source). Licence: Public domain, a work of the US federal government
  • © 2026 Federal Reserve Bank of New York. Content from the New York Fed subject to the Terms of Use at newyorkfed.org. The Federal Reserve share of maturities is computed by 500metrics. (source). Licence: Federal Reserve Bank of New York terms of use

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