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

How much US Treasury debt was maturing within a year on 31 May 2015?

On 31 May 2015, $3.07 trillion of marketable US Treasury debt was due within 12 months, 3.2% more than a year earlier ($2.97 trillion on 31 May 2014), the largest amount since 31 March 2014.

Marketable Treasury debt maturing each month, by kind

June 2015 to May 2016As of the month-end of 31 May 2015

$0.2T$0.4T$0.6TJunJulAugSepOctNovDecJanFebMarAprMay

June 2015 Bills $388.96B Notes and bonds $108.39B Total $497.36BJuly 2015 Bills $265.00B Notes and bonds $105.21B TIPS and FRNs $20.62B Total $390.84BAugust 2015 Bills $225.00B Notes and bonds $139.38B Total $364.38BSeptember 2015 Bills $126.99B Notes and bonds $101.10B Total $228.10BOctober 2015 Bills $145.00B Notes and bonds $99.72B Total $244.72BNovember 2015 Bills $121.00B Notes and bonds $129.18B Total $250.18BDecember 2015 Bills $25.00B Notes and bonds $100.75B Total $125.75BJanuary 2016 Bills $25.00B Notes and bonds $99.70B TIPS and FRNs $61.21B Total $185.91BFebruary 2016 Bills $25.00B Notes and bonds $151.44B Total $176.44BMarch 2016 Bills $49.99B Notes and bonds $125.71B Total $175.70BApril 2016 Bills $25.00B Notes and bonds $128.11B TIPS and FRNs $82.01B Total $235.12BMay 2016 Bills $25.00B Notes and bonds $169.97B Total $194.97B

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 May 2015

Due within 12 months$3.07T
Bills$1.45T
Notes and bonds$1.46T
TIPS and FRNs$163.84B

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 May 2014. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 May 2015 and of 31 May 2014 ($ million)
Measure	This month-end	A year earlier
Month-end	31 May 2015	31 May 2014
Due within 12 months	3,069,464	2,974,356
Bills	1,446,958	1,448,984
Notes	1,424,797	1,444,393
Bonds	33,864	10,520
TIPS	81,854	70,458
FRNs	81,990	0
Securities	86	77
Bills share	47.1%	48.7%

Observed 31 May 2015.

That month-end

June 2015 is the largest month, with $497.36 billion.

Bills, the securities that mature within a year of issue, were 47.1% of what was due in these months.

A year earlier

At the month-end a year before, 31 May 2014, $2.97 trillion was due within the next 12 months, against $3.07 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $12.60 trillion, by kind:

Bills $1.45T
Notes and bonds $9.83T
TIPS and FRNs $1.33T

Bills made up 11.5% of it. Weighted by amount, it had 69.3 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$3.07T was due within 12 months of the month-end of 31 May 2015, 47.1% 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	Bonds	TIPS	FRNs	Securities
June 2015	497,357	388,965	108,392	0	0	0	7
July 2015	390,839	265,000	105,214	0	20,624	0	9
August 2015	364,378	225,003	135,351	4,024	0	0	9
September 2015	228,097	126,994	101,103	0	0	0	7
October 2015	244,718	145,001	99,717	0	0	0	8
November 2015	250,184	121,000	123,599	5,585	0	0	9
December 2015	125,752	25,000	100,752	0	0	0	4
January 2016	185,910	25,000	99,697	0	20,213	41,000	6
February 2016	176,441	24,999	146,011	5,432	0	0	7
March 2016	175,701	49,995	125,706	0	0	0	6
April 2016	235,117	25,000	128,110	0	41,016	40,990	7
May 2016	194,969	25,001	151,144	18,824	0	0	7
All of these months	3,069,464	1,446,958	1,424,797	33,864	81,854	81,990	86

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

What was all marketable debt made of?31 May 2015, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,446,958	11.5%
Notes	8,188,733	65.0%
Bonds	1,636,972	13.0%
TIPS	1,092,759	8.7%
Floating rate notes	233,046	1.8%
All marketable debt	12,598,469	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
June 2015	497,357	1	0.0%
July 2015	390,839	1	0.0%
August 2015	364,378	1,287	0.4%
September 2015	228,097	1	0.0%
October 2015	244,718	0	0.0%
November 2015	250,184	326	0.1%
December 2015	125,752	0	0.0%
January 2016	185,910	1,911	1.0%
February 2016	176,441	36,707	20.8%
March 2016	175,701	23,587	13.4%
April 2016	235,117	27,763	11.8%
May 2016	194,969	39,269	20.1%

Observed 27 May 2015.

When are the figures from?

Observed 31 May 2015.

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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.