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

How much US Treasury debt was maturing within a year on 30 September 2011?

On 30 September 2011, $2.67 trillion of marketable US Treasury debt was due within 12 months, 4.3% more than a year earlier ($2.56 trillion on 30 September 2010).

Marketable Treasury debt maturing each month, by kind

October 2011 to September 2012As of the month-end of 30 Sep 2011

$0.2T$0.4T$0.6TOctNovDecJanFebMarAprMayJunJulAugSep

October 2011 Bills $382.44B Notes and bonds $61.27B Total $443.70BNovember 2011 Bills $239.03B Notes and bonds $91.80B Total $330.84BDecember 2011 Bills $287.00B Notes and bonds $90.28B Total $377.28BJanuary 2012 Bills $118.01B Notes and bonds $92.13B TIPS and FRNs $7.64B Total $217.78BFebruary 2012 Bills $127.00B Notes and bonds $120.13B Total $247.13BMarch 2012 Bills $158.01B Notes and bonds $96.45B Total $254.46BApril 2012 Bills $24.00B Notes and bonds $96.95B TIPS and FRNs $19.24B Total $140.19BMay 2012 Bills $48.00B Notes and bonds $100.34B Total $148.34BJune 2012 Bills $24.00B Notes and bonds $92.47B Total $116.47BJuly 2012 Bills $20.00B Notes and bonds $90.64B TIPS and FRNs $28.92B Total $139.56BAugust 2012 Bills $25.00B Notes and bonds $116.36B Total $141.36BSeptember 2012 Bills $25.00B Notes and bonds $91.08B Total $116.08B

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: 30 Sep 2011

Due within 12 months$2.67T
Bills$1.48T
Notes and bonds$1.14T
TIPS and FRNs$55.80B

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, 30 September 2010. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 30 September 2011 and of 30 September 2010 ($ million)
Measure	This month-end	A year earlier
Month-end	30 September 2011	30 September 2010
Due within 12 months	2,673,202	2,562,861
Bills	1,477,505	1,788,452
Notes	1,139,898	738,466
Bonds	0	0
TIPS	55,799	35,942
FRNs	0	0
Securities	73	61
Bills share	55.3%	69.8%

Observed 30 Sep 2011.

That month-end

October 2011 is the largest month, with $443.70 billion.

Bills, the securities that mature within a year of issue, were 55.3% of what was due in these months.

A year earlier

At the month-end a year before, 30 September 2010, $2.56 trillion was due within the next 12 months, against $2.67 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $9.62 trillion, by kind:

Bills $1.48T
Notes and bonds $7.43T
TIPS and FRNs $705.69B

Bills made up 15.4% of it. Weighted by amount, it had 62.5 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.67T was due within 12 months of the month-end of 30 Sep 2011, 55.3% 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
October 2011	443,705	382,439	61,266	0	6
November 2011	330,836	239,035	91,801	0	7
December 2011	377,280	287,000	90,281	0	8
January 2012	217,781	118,012	92,130	7,639	8
February 2012	247,132	127,004	120,128	0	8
March 2012	254,462	158,015	96,447	0	8
April 2012	140,185	24,000	96,946	19,239	5
May 2012	148,345	48,000	100,345	0	5
June 2012	116,465	24,000	92,465	0	4
July 2012	139,566	20,000	90,644	28,921	5
August 2012	141,360	25,000	116,360	0	5
September 2012	116,085	25,000	91,085	0	4
All of these months	2,673,202	1,477,505	1,139,898	55,799	73

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

What was all marketable debt made of?30 September 2011, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,477,505	15.4%
Notes	6,412,453	66.7%
Bonds	1,020,374	10.6%
TIPS	705,693	7.3%
Floating rate notes	0	0.0%
All marketable debt	9,616,025	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
October 2011	443,705	18,671	4.2%
November 2011	330,836	10,493	3.2%
December 2011	377,280	5,621	1.5%
January 2012	217,781	7,554	3.5%
February 2012	247,132	14,491	5.9%
March 2012	254,462	14,212	5.6%
April 2012	140,185	18,023	12.9%
May 2012	148,345	14,188	9.6%
June 2012	116,465	15,264	13.1%
July 2012	139,566	16,391	11.7%
August 2012	141,360	21,386	15.1%
September 2012	116,085	9,200	7.9%

Observed 28 Sep 2011.

When are the figures from?

Observed 30 Sep 2011.

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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.