DoD Total Obligational Authority · Air Force (incl. Space Force) · $ billions

## What this measures

Total obligational authority (TOA) of the Department of the Air Force, including the Space Force, in billions of current dollars, by federal fiscal year (October to September, dated September 30), from the Comptroller's Green Book. FY 1948 to FY 2026.

## Why it matters

How the defense budget is divided among the services shows the Pentagon’s priorities: ships and aircraft against ground forces, and how much flows to defense-wide programs.

## How to read it

FY 2026: $294.6 billion. The FY 2027 request is defense.dod.toa_request_usd_bn.air_force; inflation-adjusted values are defense.dod.toa_real_usd_bn.air_force.

## What it does not say

Total obligational authority is the money available to commit in a fiscal year, whenever it was appropriated; it is not spending (outlays). War and supplemental funding are included, so the war years jump. The Department of the Navy includes the Marine Corps and the Department of the Air Force the Space Force; defense-wide covers agencies such as the Defense Health Program, the Missile Defense Agency and Special Operations Command. Each new Green Book revises recent years.

## Source

U.S. Department of Defense, Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates for FY 2027 (the "Green Book"), Table 6-3, TOA by Military Department (current and FY 2027 constant dollars): https://comptroller.war.gov/Budget-Materials/ (fy27_Green_Book.pdf). A work of the U.S. Government (17 U.S.C. §105), public domain. Parsed by scripts/v23a/green-book-toa.mjs into src/lib/defense/green-book-toa.ts; loaded by scripts/v23a/load-static.ts each year when the new Green Book appears.