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

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

On 31 July 2009, $2.73 trillion of marketable US Treasury debt was due within 12 months, 54.3% more than a year earlier ($1.77 trillion on 31 July 2008).

Marketable Treasury debt maturing each month, by kind

August 2009 to July 2010As of the month-end of 31 Jul 2009

$0.2T$0.4T$0.6TAugSepOctNovDecJanFebMarAprMayJunJul

August 2009 Bills $509.43B Notes and bonds $90.40B Total $599.83BSeptember 2009 Bills $316.01B Notes and bonds $36.97B Total $352.98BOctober 2009 Bills $420.02B Notes and bonds $38.87B Total $458.90BNovember 2009 Bills $173.01B Notes and bonds $68.07B Total $241.08BDecember 2009 Bills $214.00B Notes and bonds $41.50B Total $255.50BJanuary 2010 Bills $145.01B Notes and bonds $41.92B TIPS and FRNs $14.39B Total $201.32BFebruary 2010 Bills $23.00B Notes and bonds $86.34B Total $109.34BMarch 2010 Bills $24.00B Notes and bonds $47.00B Total $71.00BApril 2010 Bills $60.00B Notes and bonds $47.75B TIPS and FRNs $31.61B Total $139.36BMay 2010 Bills $26.00B Notes and bonds $70.10B Total $96.10BJune 2010 Bills $55.99B Notes and bonds $47.22B Total $103.21BJuly 2010 Bills $54.00B Notes and bonds $47.42B Total $101.42B

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 Jul 2009

Due within 12 months$2.73T
Bills$2.02T
Notes and bonds$663.57B
TIPS and FRNs$45.99B

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

Debt due within 12 months of 31 July 2009 and of 31 July 2008 ($ million)
Measure	This month-end	A year earlier
Month-end	31 July 2009	31 July 2008
Due within 12 months	2,730,044	1,769,858
Bills	2,020,483	1,135,786
Notes	663,565	613,073
Bonds	0	0
TIPS	45,995	21,000
FRNs	0	0
Securities	68	60
Bills share	74.0%	64.2%

Observed 31 Jul 2009.

That month-end

August 2009 is the largest month, with $599.83 billion.

Bills, the securities that mature within a year of issue, were 74.0% of what was due in these months.

A year earlier

At the month-end a year before, 31 July 2008, $1.77 trillion was due within the next 12 months, against $2.73 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $6.77 trillion, by kind:

Bills $2.02T
Notes and bonds $4.20T
TIPS and FRNs $548.05B

Bills made up 29.8% of it. Weighted by amount, it had 51.3 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.73T was due within 12 months of the month-end of 31 Jul 2009, 74.0% 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
August 2009	599,826	509,430	90,397	0	8
September 2009	352,982	316,008	36,974	0	7
October 2009	458,896	420,025	38,871	0	7
November 2009	241,077	173,008	68,069	0	7
December 2009	255,504	214,004	41,500	0	7
January 2010	201,324	145,010	41,925	14,389	7
February 2010	109,341	23,001	86,340	0	5
March 2010	71,001	24,004	46,997	0	3
April 2010	139,361	60,000	47,754	31,607	5
May 2010	96,099	26,002	70,098	0	4
June 2010	103,210	55,991	47,220	0	4
July 2010	101,422	54,001	47,422	0	4
All of these months	2,730,044	2,020,483	663,565	45,995	68

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

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

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	2,020,483	29.8%
Notes	3,547,440	52.4%
Bonds	654,802	9.7%
TIPS	548,048	8.1%
Floating rate notes	0	0.0%
All marketable debt	6,770,773	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
August 2009	599,826	27,349	4.6%
September 2009	352,982	2,132	0.6%
October 2009	458,896	3,470	0.8%
November 2009	241,077	13,614	5.6%
December 2009	255,504	3,895	1.5%
January 2010	201,324	5,166	2.6%
February 2010	109,341	11,996	11.0%
March 2010	71,001	4,867	6.9%
April 2010	139,361	8,701	6.2%
May 2010	96,099	9,253	9.6%
June 2010	103,210	3,620	3.5%
July 2010	101,422	3,438	3.4%

Observed 29 Jul 2009.

When are the figures from?

Observed 31 Jul 2009.

500metrics is not affiliated with the New York Fed. The New York Fed does not sanction, endorse, or recommend any products or services offered by 500metrics.

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.