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

How much US Treasury debt was maturing within a year on 30 September 2006?

On 30 September 2006, $1.55 trillion of marketable US Treasury debt was due within 12 months, 4.1% more than a year earlier ($1.49 trillion on 30 September 2005).

Marketable Treasury debt maturing each month, by kind

October 2006 to September 2007As of the month-end of 30 Sep 2006

$0.1T$0.2T$0.3T$0.4TOctNovDecJanFebMarAprMayJunJulAugSep

October 2006 Bills $218.42B Notes and bonds $52.03B Total $270.45BNovember 2006 Bills $222.40B Notes and bonds $91.97B Total $314.36BDecember 2006 Bills $183.17B Notes and bonds $31.95B Total $215.12BJanuary 2007 Bills $82.02B Notes and bonds $29.03B TIPS and FRNs $20.24B Total $131.29BFebruary 2007 Bills $90.70B Notes and bonds $70.58B Total $161.28BMarch 2007 Bills $114.81B Notes and bonds $32.00B Total $146.81BApril 2007 Notes and bonds $32.00B Total $32.00BMay 2007 Notes and bonds $94.99B Total $94.99BJune 2007 Notes and bonds $26.66B Total $26.66BJuly 2007 Notes and bonds $25.87B Total $25.87BAugust 2007 Notes and bonds $102.39B Total $102.39BSeptember 2007 Notes and bonds $26.59B Total $26.59B

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 2006

Due within 12 months$1.55T
Bills$911.53B
Notes and bonds$616.06B
TIPS and FRNs$20.24B

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 2005. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 30 September 2006 and of 30 September 2005 ($ million)
Measure	This month-end	A year earlier
Month-end	30 September 2006	30 September 2005
Due within 12 months	1,547,830	1,486,815
Bills	911,530	914,264
Notes	616,061	567,795
Bonds	0	4,756
TIPS	20,238	0
FRNs	0	0
Securities	50	47
Bills share	58.9%	61.5%

Observed 30 Sep 2006.

That month-end

November 2006 is the largest month, with $314.36 billion.

Bills, the securities that mature within a year of issue, were 58.9% of what was due in these months.

A year earlier

At the month-end a year before, 30 September 2005, $1.49 trillion was due within the next 12 months, against $1.55 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $4.26 trillion, by kind:

Bills $911.53B
Notes and bonds $2.95T
TIPS and FRNs $395.64B

Bills made up 21.4% of it. Weighted by amount, it had 55.7 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$1.55T was due within 12 months of the month-end of 30 Sep 2006, 58.9% 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
October 2006	270,447	218,419	52,028	0	6
November 2006	314,364	222,399	91,965	0	8
December 2006	215,123	183,172	31,952	0	5
January 2007	131,289	82,024	29,027	20,238	6
February 2007	161,284	90,704	70,580	0	7
March 2007	146,814	114,813	32,001	0	6
April 2007	31,998	0	31,998	0	1
May 2007	94,993	0	94,993	0	4
June 2007	26,664	0	26,664	0	1
July 2007	25,870	0	25,870	0	1
August 2007	102,393	0	102,393	0	4
September 2007	26,591	0	26,591	0	1
All of these months	1,547,830	911,530	616,061	20,238	50

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

What was all marketable debt made of?30 September 2006, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	911,530	21.4%
Notes	2,415,458	56.7%
Bonds	534,659	12.6%
TIPS	395,638	9.3%
Floating rate notes	0	0.0%
All marketable debt	4,257,285	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 2006	270,447	74,333	27.5%
November 2006	314,364	83,704	26.6%
December 2006	215,123	56,075	26.1%
January 2007	131,289	33,737	25.7%
February 2007	161,284	39,836	24.7%
March 2007	146,814	36,082	24.6%
April 2007	31,998	10,125	31.6%
May 2007	94,993	19,006	20.0%
June 2007	26,664	6,667	25.0%
July 2007	25,870	6,779	26.2%
August 2007	102,393	20,379	19.9%
September 2007	26,591	6,861	25.8%

Observed 27 Sep 2006.

When are the figures from?

Observed 30 Sep 2006.

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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.