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U.S. FEDERAL SPENDING · FUNCTION 050

National Defense

Military & defense activities. Follow the spending and understand what it includes.

Numbers tell a bigger story.

Week starts Monday · YTD starts January 1 · UTC. All-time history is not yet available.

WN Estimate

ESTIMATED SPENDING · YTD

$789,830,914,772

$30,605 per second · YTD, UTC

Selected range uses a constant historical pace, not actual payments recorded during this week, month or year.

REPORTED NET OUTLAYS$965,160,356,8212025-10-01 – 2026-09-30

FOLLOW THE MONEY

What does defense buy?

Explore aircraft, ammunition, missiles, transportation and the services that support the military. Categories are ranked by reported contract commitments.

FY2025 Defense-funded prime contracts worldwide. These are net obligations—funds committed by contract actions—not cash paid or items delivered. Military salaries, grants, classified/unreported activity and other National Defense spending are outside this breakdown.

Baseline: FY2025 · October 1, 2024–September 30, 2025 · Obligations, not payments

Reported contract commitments $503,835,025,759

20 categories

IT, communications & electronics

#1 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$44,606,441,048Historical pace · USD, UTC

Engineering & professional support

#2 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$44,249,716,327Historical pace · USD, UTC

Aircraft & airframes

#3 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$43,255,300,525Historical pace · USD, UTC

Other goods & services

#4 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$34,964,159,842Historical pace · USD, UTC

Research & development

#5 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$34,879,533,376Historical pace · USD, UTC

Ships & marine equipment

#6 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$31,588,962,497Historical pace · USD, UTC

Equipment maintenance & support

#7 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$28,958,455,513Historical pace · USD, UTC

Construction & facilities repair

#8 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$27,204,490,847Historical pace · USD, UTC

Guided missiles

#9 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$26,521,450,626Historical pace · USD, UTC

Medical care & supplies

#10 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$21,228,432,413Historical pace · USD, UTC

Aircraft engines & parts

#11 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$13,980,852,818Historical pace · USD, UTC

Base operations & utilities

#12 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$13,532,530,151Historical pace · USD, UTC

Transportation & logistics

#13 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$12,451,767,357Historical pace · USD, UTC

Ammunition & explosives

#14 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$8,865,751,607Historical pace · USD, UTC

Vehicles & ground equipment

#15 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$7,224,396,647Historical pace · USD, UTC

Fuel & lubricants

#16 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$6,988,435,206Historical pace · USD, UTC

Weapons & fire control

#17 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$5,213,071,278Historical pace · USD, UTC

Food, clothing & personal gear

#18 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$5,054,694,876Historical pace · USD, UTC

Unmanned aircraft

#19 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$1,522,231,072Historical pace · USD, UTC

Space systems

#20 · DEFENSE CONTRACT COMMITMENTS

WN Estimate
Modeled commitments · YTD$18,510,115.42Historical pace · USD, UTC

How these numbers work

USAspending transaction-level net obligations, funded by Department of Defense, contract award types A/B/C/D. All 2,047 returned Product or Service Codes are assigned once to 20 editorial categories; exact code rules and every source record are archived. Categories reflect each action’s reported primary purpose. They can include purchases, components and support, not just new equipment. Negative deobligations are retained. Prime transactions only; subawards are not added. The grouped total agrees with the separate agency query within $0.04 of API aggregation rounding. Counters apply the historical FY2025 commitment pace to the selected period; they do not measure current purchases or payments. These totals do not reconcile to the Treasury National Defense outlay counter because the measure, period and coverage differ.

Running amounts apply a constant historical pace: the reported amount divided by every second in FY2025 · October 1, 2024–September 30, 2025, multiplied by elapsed time in the selected range. They illustrate the flow; they do not track actual transactions today. Week starts Monday and YTD starts January 1, in UTC. Dollar increments show motion, not dollar-level measurement accuracy.

“Reported period” restores the original source amounts. This pace model freezes at 2027-01-01 unless a newer official snapshot is imported. These program snapshots have their own reporting periods and coverage, which differ from the national Treasury budget-function counter.

Official sources, versions & audit trail
USAspending · FY2025 Defense-funded prime contract transactions by Product or Service Code ↗

FY2025 · funding agency: Department of Defense · contract types A/B/C/D · worldwide · transaction obligations
Retrieved 2026-09-27 · Archived source

Version: defense-psc-fy2025-v2. Source-file SHA-256 checksums, original observations and the model are included in the audit download. Illustrative images are AI-generated and do not identify actual recipients, facilities or contract work.

Download data & audit

What does national defense include?

BEHIND THE NUMBER

National defense covers military operations and support, atomic energy defense work and other defense-related activities. Veterans’ benefits appear in their own category.

  • Department of Defense military activities
  • Atomic energy defense activities
  • Other defense-related activities

These topics describe the full budget category. Available breakdowns on this page cover only the programs and reporting periods identified alongside them.

Read the congressional category definitions ↗

How to read this number

Spending and debt answer different questions. This page shows spending within one federal budget function. The national debt is the accumulated outstanding balance of federal borrowing, not a sum of these category counters.

Source, calculation & original data

Source: U.S. Treasury, Monthly Treasury Statement, Table 9. Retrieved 2026-10-26. Reported total: $965,160,356,821.

Rate = reported amount ÷ 31,536,000 seconds in the reporting period. Estimated ranges apply this historical average to elapsed seconds since midnight today, Monday, the first of the month, or January 1 (UTC). These are modeled totals, not measured weekly, monthly or calendar-year outlays. The reported-period view shows the original published total. Estimates stop 45 days after the reporting period ends. Negative net outlays remain static.

Funds approved by law and actual outlays differ in timing and scope. This page does not claim to show a new congressional appropriation.

Treasury source ↗ · Download original data