Maturities · Month-end record, Monthly Statement of the Public Debt

How much US Treasury debt was maturing within a year on 31 August 2008?

On , $1.88 trillion of marketable US Treasury debt was due within 12 months, 17.8% more than a year earlier ($1.60 trillion on ), the largest amount of any month-end we hold.

Marketable Treasury debt maturing each month, by kind

September 2008 to August 2009As of the month-end of

Marketable Treasury debt maturing each month, by kind, September 2008 to August 2009

Each kind

  • Bills
  • Notes and bonds
  • TIPS and FRNs

Each column is one month after the month-end, in parts by kind of security; pointing at a column shows them.

The linesLatest:

  • Due within 12 months$1.88T
  • Bills$1.23T
  • Notes and bonds$635.32B
  • TIPS and FRNs$21.20B
Inspect and compare dates

What matures within 12 months of this month-end beside the same months counted from the month-end a year earlier, 31 August 2007. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 August 2008 and of 31 August 2007 ($ million)
MeasureThis month-endA year earlier
Month-end
Due within 12 months1,883,7061,599,402
Bills1,227,1921,014,066
Notes635,317563,656
Bonds00
TIPS21,19721,680
FRNs00
Securities6349
Bills share65.1%63.4%

Observed .

That month-end

September 2008 is the largest month, with $434.90 billion.

Bills, the securities that mature within a year of issue, were 65.1% of what was due in these months.

A year earlier

At the month-end a year before, , $1.60 trillion was due within the next 12 months, against $1.88 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $4.86 trillion, by kind:

  • Bills $1.23T
  • Notes and bonds $3.11T
  • TIPS and FRNs $521.38B

Bills made up 25.2% of it. Weighted by amount, it had 55.6 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$1.88T was due within 12 months of the month-end of , 65.1% of it in bills.

What does the maturity calendar show?

Treasury usually pays maturing debt with new borrowing, so the amount due is the amount Treasury rolls over into new securities.

Read more

Bills issued after the month-end are not here; the calendar filled with new bills every week.

The numbers behind the chart

How much was due in each of the 12 months after it?$ million, by kind
Marketable Treasury debt maturing each month ($ million)
Maturing inTotalBillsNotesBondsTIPSFRNsSecurities
September 2008434,900394,39840,5020007
October 2008264,372225,64838,7240007
November 2008286,090197,03889,0520008
December 2008135,82695,01040,8170006
January 2009200,230140,05438,979021,19708
February 2009165,816103,03662,7800007
March 200938,647038,6470002
April 200938,781038,7810002
May 200982,722082,7220004
June 200953,02616,00037,0260003
July 200972,89936,00536,8930004
August 2009110,39820,00190,3970005
All of these months1,883,7061,227,192635,317021,197063

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

What was all marketable debt made of?31 August 2008, $ million
Marketable Treasury debt outstanding at the month-end ($ million)
KindAmount, $ millionShare
Bills1,227,19225.2%
Notes2,529,89052.0%
Bonds582,82312.0%
TIPS521,38510.7%
Floating rate notes00.0%
All marketable debt4,861,290100.0%
How much of it did the Federal Reserve hold?System Open Market Account, $ million
Maturing debt held in the Federal Reserve's System Open Market Account ($ million)
Maturing inTotalHeld by the FedFed share
September 2008434,90020,2254.7%
October 2008264,3728,2813.1%
November 2008286,09014,1134.9%
December 2008135,8266,1394.5%
January 2009200,2307,4973.7%
February 2009165,8168,4475.1%
March 200938,6475,76614.9%
April 200938,7814,71612.2%
May 200982,72216,04019.4%
June 200953,0263,7077.0%
July 200972,8994,1155.6%
August 2009110,39814,86413.5%

Observed .

When are the figures from?

Observed .

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Sources

© 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) Terms: Federal Reserve Bank of New York terms of use.