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

How much US Treasury debt was maturing within a year on 31 August 2009?

On 31 August 2009, $2.76 trillion of marketable US Treasury debt was due within 12 months, 46.5% more than a year earlier ($1.88 trillion on 31 August 2008), the largest amount of any month-end we hold.

Marketable Treasury debt maturing each month, by kind

September 2009 to August 2010As of the month-end of 31 Aug 2009

$0.2T$0.4T$0.6TSepOctNovDecJanFebMarAprMayJunJulAug

September 2009 Bills $462.43B Notes and bonds $36.97B Total $499.40BOctober 2009 Bills $520.02B Notes and bonds $38.87B Total $558.89BNovember 2009 Bills $299.02B Notes and bonds $68.07B Total $367.09BDecember 2009 Bills $214.00B Notes and bonds $41.50B Total $255.50BJanuary 2010 Bills $145.01B Notes and bonds $41.92B TIPS and FRNs $14.51B Total $201.44BFebruary 2010 Bills $145.01B Notes and bonds $86.34B Total $231.35BMarch 2010 Bills $24.00B Notes and bonds $47.00B Total $71.00BApril 2010 Bills $60.00B Notes and bonds $47.75B TIPS and FRNs $31.87B Total $139.63BMay 2010 Bills $26.00B Notes and bonds $70.10B Total $96.10BJune 2010 Bills $91.99B Notes and bonds $47.22B Total $139.21BJuly 2010 Bills $54.00B Notes and bonds $47.42B Total $101.42BAugust 2010 Bills $27.00B Notes and bonds $72.05B Total $99.05B

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: 31 Aug 2009

Due within 12 months$2.76T
Bills$2.07T
Notes and bonds$645.22B
TIPS and FRNs$46.38B

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 2008. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 August 2009 and of 31 August 2008 ($ million)
Measure	This month-end	A year earlier
Month-end	31 August 2009	31 August 2008
Due within 12 months	2,760,098	1,883,706
Bills	2,068,494	1,227,192
Notes	645,222	635,317
Bonds	0	0
TIPS	46,382	21,197
FRNs	0	0
Securities	68	63
Bills share	74.9%	65.1%

Observed 31 Aug 2009.

That month-end

October 2009 is the largest month, with $558.89 billion.

Bills, the securities that mature within a year of issue, were 74.9% of what was due in these months.

A year earlier

At the month-end a year before, 31 August 2008, $1.88 trillion was due within the next 12 months, against $2.76 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $6.93 trillion, by kind:

Bills $2.07T
Notes and bonds $4.31T
TIPS and FRNs $552.41B

Bills made up 29.9% of it. Weighted by amount, it had 51.9 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.76T was due within 12 months of the month-end of 31 Aug 2009, 74.9% 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.

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 in	Total	Bills	Notes	TIPS	Securities
September 2009	499,401	462,427	36,974	0	7
October 2009	558,895	520,024	38,871	0	7
November 2009	367,094	299,025	68,069	0	7
December 2009	255,504	214,004	41,500	0	7
January 2010	201,445	145,010	41,925	14,510	7
February 2010	231,346	145,006	86,340	0	8
March 2010	71,001	24,004	46,997	0	3
April 2010	139,626	60,000	47,754	31,872	5
May 2010	96,099	26,002	70,098	0	4
June 2010	139,211	91,991	47,220	0	5
July 2010	101,421	54,000	47,422	0	4
August 2010	99,054	27,000	72,054	0	4
All of these months	2,760,098	2,068,494	645,222	46,382	68

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

What was all marketable debt made of?31 August 2009, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	2,068,494	29.9%
Notes	3,638,593	52.5%
Bonds	667,731	9.6%
TIPS	552,413	8.0%
Floating rate notes	0	0.0%
All marketable debt	6,927,230	100.0%

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 in	Total	Held by the Fed	Fed share
September 2009	499,401	14,616	2.9%
October 2009	558,895	3,470	0.6%
November 2009	367,094	13,614	3.7%
December 2009	255,504	3,895	1.5%
January 2010	201,445	5,178	2.6%
February 2010	231,346	11,996	5.2%
March 2010	71,001	4,867	6.9%
April 2010	139,626	8,730	6.3%
May 2010	96,099	9,253	9.6%
June 2010	139,211	3,620	2.6%
July 2010	101,421	3,438	3.4%
August 2010	99,054	7,060	7.1%

Observed 26 Aug 2009.

When are the figures from?

Observed 31 Aug 2009.

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Page updated 4 Oct 2026, 09:34 UTC

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.