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

How much US Treasury debt was maturing within a year on 31 August 2006?

On 31 August 2006, $1.60 trillion of marketable US Treasury debt was due within 12 months, 5.1% more than a year earlier ($1.53 trillion on 31 August 2005).

Marketable Treasury debt maturing each month, by kind

September 2006 to August 2007As of the month-end of 31 Aug 2006

$0.1T$0.2T$0.3T$0.4TSepOctNovDecJanFebMarAprMayJunJulAug

September 2006 Bills $297.42B Notes and bonds $31.66B Total $329.08BOctober 2006 Bills $165.50B Notes and bonds $52.03B Total $217.53BNovember 2006 Bills $222.40B Notes and bonds $91.97B Total $314.37BDecember 2006 Bills $81.17B Notes and bonds $31.95B Total $113.13BJanuary 2007 Bills $82.02B Notes and bonds $29.03B TIPS and FRNs $20.18B Total $131.23BFebruary 2007 Bills $90.70B Notes and bonds $70.58B Total $161.28BMarch 2007 Bills $23.09B Notes and bonds $32.00B Total $55.09BApril 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 $102.39B

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 2006

Due within 12 months$1.60T
Bills$962.31B
Notes and bonds$621.13B
TIPS and FRNs$20.18B

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

Debt due within 12 months of 31 August 2006 and of 31 August 2005 ($ million)
Measure	This month-end	A year earlier
Month-end	31 August 2006	31 August 2005
Due within 12 months	1,603,619	1,525,685
Bills	962,312	953,251
Notes	621,127	567,678
Bonds	0	4,756
TIPS	20,179	0
FRNs	0	0
Securities	50	47
Bills share	60.0%	62.5%

Observed 31 Aug 2006.

That month-end

September 2006 is the largest month, with $329.08 billion.

Bills, the securities that mature within a year of issue, were 60.0% of what was due in these months.

A year earlier

At the month-end a year before, 31 August 2005, $1.53 trillion was due within the next 12 months, against $1.60 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $4.33 trillion, by kind:

Bills $962.31B
Notes and bonds $2.97T
TIPS and FRNs $394.49B

Bills made up 22.2% of it. Weighted by amount, it had 55.3 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$1.60T was due within 12 months of the month-end of 31 Aug 2006, 60.0% 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
September 2006	329,077	297,421	31,656	0	5
October 2006	217,531	165,503	52,028	0	6
November 2006	314,366	222,401	91,965	0	8
December 2006	113,126	81,175	31,952	0	5
January 2007	131,230	82,024	29,027	20,179	6
February 2007	161,284	90,704	70,580	0	7
March 2007	55,086	23,085	32,001	0	2
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
All of these months	1,603,619	962,312	621,127	20,179	50

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

What was all marketable debt made of?31 August 2006, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	962,312	22.2%
Notes	2,439,116	56.3%
Bonds	534,659	12.3%
TIPS	394,485	9.1%
Floating rate notes	0	0.0%
All marketable debt	4,330,573	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 2006	329,077	76,585	23.3%
October 2006	217,531	62,713	28.8%
November 2006	314,366	76,087	24.2%
December 2006	113,126	33,308	29.4%
January 2007	131,230	33,737	25.7%
February 2007	161,284	39,836	24.7%
March 2007	55,086	8,000	14.5%
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%

Observed 30 Aug 2006.

When are the figures from?

Observed 31 Aug 2006.

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.