The national debt

Interest on the National Debt

What the federal government spends in interest on the public debt, month by month and fiscal year by fiscal year, as the Treasury reports it.

Interest in October 2026$115.5 billionPublic issues $98.6 billion, trust funds $16.8 billion
Fiscal year 2027 to date$115.5 billion1 month through Oct 31, 2026
Fiscal year 2026$1.36 trillionUp 11.5% from $1.22 trillion in 2025

By fiscal year

Fiscal year Total interest On public issues On trust-fund holdings
2027 1 mo. $115,461,243,276 $98,616,179,671 $16,845,063,606
2026 $1,360,396,866,366 $1,068,464,267,662 $291,932,598,704
2025 $1,220,025,282,630 $973,673,123,956 $246,352,158,674
2024 $1,133,036,890,149 $896,007,033,325 $237,029,856,824
2023 $882,598,268,533 $666,169,786,135 $216,428,482,399
2022 $718,745,810,097 $489,248,346,264 $229,497,463,833
2021 $562,388,232,682 $389,035,480,753 $173,352,751,929
2020 $522,767,299,265 $368,102,426,278 $154,664,872,988
2019 $574,587,783,464 $397,297,169,121 $177,290,614,343
2018 $523,017,301,446 $351,140,672,125 $171,876,629,321
2017 $458,542,287,312 $291,541,462,676 $167,000,824,636
2016 $432,649,652,901 $267,725,520,091 $164,924,132,810
2015 $402,435,356,075 $248,169,826,078 $154,265,529,997
2014 $430,812,121,372 $255,427,824,650 $175,384,296,722
2013 $415,688,781,248 $245,524,963,172 $170,163,818,076
2012 $359,796,008,919 $243,295,334,116 $116,500,674,803
2011 $454,393,280,417 $247,831,427,986 $206,561,852,431
2010 5 mo. $189,541,282,193 $92,412,675,673 $97,128,606,520

A fiscal year runs from October 1 to September 30. Fiscal year 2010 starts with May 2010, the first month in the Treasury's dataset. "Public issues" is interest on securities held by the public; "trust-fund holdings" is interest credited to federal trust funds (intragovernmental), which the government pays to itself.

By month, the last three years

Month Fiscal year Total interest On public issues On trust-fund holdings
October 2026 2027 $115,461,243,276 $98,616,179,671 $16,845,063,606
September 2026 2026 $92,591,721,785 $86,655,440,786 $5,936,280,998
August 2026 2026 $97,768,569,546 $81,727,308,068 $16,041,261,478
July 2026 2026 $117,573,576,107 $100,518,590,767 $17,054,985,340
June 2026 2026 $185,199,785,714 $100,866,731,359 $84,333,054,355
May 2026 2026 $132,622,551,434 $106,436,016,674 $26,186,534,760
April 2026 2026 $111,600,572,509 $91,560,195,421 $20,040,377,088
March 2026 2026 $102,644,421,073 $91,595,524,530 $11,048,896,543
February 2026 2026 $93,483,359,631 $74,525,713,085 $18,957,646,547
January 2026 2026 $71,888,162,603 $73,470,490,567 -$1,582,327,964
December 2025 2026 $154,365,883,741 $87,754,469,308 $66,611,414,433
November 2025 2026 $96,254,652,133 $85,517,422,135 $10,737,229,998
October 2025 2026 $104,403,610,090 $87,836,364,962 $16,567,245,128
September 2025 2025 $91,269,656,246 $82,051,332,718 $9,218,323,527
August 2025 2025 $111,466,218,973 $87,542,318,076 $23,923,900,896
July 2025 2025 $96,324,370,526 $83,179,264,674 $13,145,105,852
June 2025 2025 $144,624,683,640 $81,730,139,555 $62,894,544,085
May 2025 2025 $92,230,405,250 $82,986,271,971 $9,244,133,279
April 2025 2025 $101,650,357,568 $84,619,229,331 $17,031,128,237
March 2025 2025 $104,413,430,718 $90,606,488,294 $13,806,942,424
February 2025 2025 $85,872,233,210 $70,858,746,602 $15,013,486,607
January 2025 2025 $83,820,977,501 $75,726,539,466 $8,094,438,035
December 2024 2025 $139,762,147,207 $79,319,639,093 $60,442,508,114
November 2024 2025 $86,592,751,812 $77,389,764,703 $9,202,987,109
October 2024 2025 $81,998,049,981 $77,663,389,471 $4,334,660,510
September 2024 2024 $84,448,301,832 $75,913,192,893 $8,535,108,939
August 2024 2024 $92,293,475,444 $76,703,859,102 $15,589,616,342
July 2024 2024 $88,549,466,363 $77,673,759,867 $10,875,706,496
June 2024 2024 $140,238,040,126 $79,352,626,998 $60,885,413,128
May 2024 2024 $103,045,207,078 $85,310,025,011 $17,735,182,067
April 2024 2024 $102,439,811,618 $82,043,623,714 $20,396,187,904
March 2024 2024 $88,653,867,156 $81,902,945,703 $6,750,921,453
February 2024 2024 $76,161,871,822 $63,449,843,853 $12,712,027,970
January 2024 2024 $69,196,125,995 $64,669,647,726 $4,526,478,269
December 2023 2024 $119,161,435,058 $67,086,520,092 $52,074,914,966
November 2023 2024 $79,923,179,591 $69,147,992,086 $10,775,187,505

Interest expense as the Treasury records it (accrued interest, amortised discounts and premiums, and interest on savings bonds and Government Account Series). Monthly figures can be negative or unusually large where the Treasury records adjustments.

Source: U.S. Treasury, Interest Expense on the Public Debt Outstanding. Updated October 31, 2026. Latest month: October 2026.