Printed from https://fiscalreceipts.com/program/F015EX/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
F-15EX
Source documents for the calculation’s inputs
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · W847; Exhibit P-1 · W875; Exhibit P-1 · W923,W932
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
Budget figures
$3.01B one-time reconciliation. Discretionary change vs FY2025 enacted: -100.0%.
Two official figures, one label— reconciled below
Fiscal Receipts uses P-1/R-1 workbook total obligation authority (TOA) as the headline figure sitewide. The workbook TOA includes budget rows that the R-2/P-40 J-book program line excludes — advance procurement in an ordinary year, and in FY2026 the one-time reconciliation appropriation as well. Each row below names the one it is. How the two bases relate →
FY26 Request · $3.01B TOA − $0 J-book line (a zero-dollar XML line) = 3.01B (3,014.4 − 0.0 = 3,014.4) — $3.01B of one-time FY2026 reconciliation money accounts for this gap — not advance procurement
Figures in the sentence are rounded for reading; the parenthesised arithmetic is the same subtraction in USD millions, at the precision where it closes.
FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →
Budget trajectory
| Fiscal year | Amount |
|---|---|
| FY24 | $2.74B |
| FY25 | $1.81B |
| FY26 | $3.01B |
All series figures: P-1 TOA · PB2026
Decade view
P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition
The vertical scale does not start at zero: the baseline sits just below this program’s smallest year, so a low point on this line is not a small amount. Read the shape for direction and the grid below for the figures.
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $1.25B | $2.74B | $2.74B | ||
| Enacted | – | $2.58B | $2.90B | $1.81B | |
| Request | – | – | $2.90B | $1.85B | $3.01B |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $2.90B for FY2024; the PB2026 book reported $2.74B as actual total obligation authority — $159.0M below the request. 2,739.06 − 2,898.04 = -158.98 USD millions — the compact figures above are rounded for reading.
Program lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — F-15EX AP
The F-15EX is a new multirole-capable fighter jet based on the 2-seat F-15QA (Qatar) configuration upgraded with advanced capabilities, including the Eagle Passive Active Warning Survivability System (EPAWSS) and the USAF F-15 Continuous Delivery & Integration (CD&I) Operational Flight Program (OFP) software. The F-15EX platform provides significant operational flexibility, enabling it to perform a wide range of mission sets with one or two aircrew. The F-15EX aircraft will be used predominantly in defensive and offensive counter-air missions at both Air National Guard (ANG) and Air Combat Command (ACC) operational squadrons. F-15EX will perform the Homeland Defense mission and provide Combatant Commanders (CCDR) with strike packages capable of operating in Highly Contested Environments (HCE). In accordance with Section 1815 of the FY 2008 National Defense Authorization Act (P.L. 110-181), this item is necessary for use by the active and reserve components of the Armed Forces for homeland defense missions, domestic emergency responses, and providing military support to civil authorities. Funding may be used to resolve Diminishing Manufacturing Sources and Material Shortages (DMSMS) and/or obsolescence issues. DMSMS activities may include, but are not limited to, bridge buys, life of type buys, buys to protect production schedule, and minor engineering efforts. Funding for this exhibit is contained in PE 0207146F. This exhibit does not include the eight aircraft in Lot 1 which were funded outside this exhibit in FY 2020 (two test aircraft were purchased with RDT&E funds (PE 0207134F); four operationally representative test aircraft and two operational aircraft were purchased with procurement funds (F015E0, Line #3)).
Description — F-15EX
The F-15EX is a new multirole-capable fighter jet based on the 2-seat F-15QA (Qatar) configuration, upgraded with advanced capabilities, including the Eagle Passive Active Warning Survivability System (EPAWSS) and USAF F-15 Continuous Delivery & Integration (CD&I) Operational Flight Program (OFP) software. The F-15EX platform provides significant operational flexibility, able to perform a wide range of mission sets with one or two aircrew. F-15EX aircraft have been procured over 6 Lots of aircraft from FY 2020 (Lot 1) to FY 2025 (Lot 6). F-15EX Modification supports retrofits to upgrade early F-15EX aircraft to a common production configuration (includes costs for kit procurement, installation, and other supporting requirements). The first 20 F-15EX aircraft (Lots 1 & 2) delivered with various configurations as new capabilities were cut into the production line. The FY 2026 request for F-15EX includes $0 thousands of discretionary and $286,700 thousands of mandatory (reconciliation) for a total of $286,700 thousands. The mandatory funds will be used for conformal fuel tanks (CFTs), aircraft modifications, and other supporting requirements. Further information for this reconciliation request is Provided in Section 20007 (Air Superiority) of the Reconciliation Exhibit. Funding for this exhibit contained in PE 0207146F.
Justification
Justification — F-15EX AP
The FY 2026 request for F-15EX includes $0 thousand of discretionary and $2,408,818 thousands of mandatory (reconciliation) for a total of $2,408,818 thousands. The mandatory funds aircraft advanced procurement, 21 F-15EX Lot 7 aircraft with conformal fuel tanks, initial spares, and other supporting requirements. Further information for this reconciliation request is provided in Section 20007 (Air Superiority) of the Reconciliation Exhibit. The Air Force awarded Lot 5 and negotiated pricing for Lot 6 (FY 2024 and FY 2025 funded, respectively) on 30 July 2024. Lot 6 was awarded on 22 Jan 2025. The negotiated values of Lots 4, 5 and 6 contracts are reflected in the cost element budget values of Prior Years, FY 2024 and FY 2025.
Justification — F-15EX
F-15EX Modification includes retrofit efforts to upgrade the first 20 in-service aircraft (Lots 1 & 2) to a common production configuration. Retrofit scope includes procurement of Group A and Group B kit hardware, installation, and recurring and nonrecurring program support costs to update various components and wiring, enabling combat capability improvements. Specific retrofits include Multifunctional Information Distribution System - Joint Tactical Radio System Block Upgrade 3 (MIDS-JTRS BU3), Data Transfer Module II (DTM II), the ARC-210 Gen 6 radio, Anti-Jam GPS, weapons stores station wiring, cockpit pressure monitor and warning system, along with technical publication updates. Retrofit kits were procured with FY 2024 funding. FY 2026 funding supports kit installation. FY 2026 funding also provides for 18 sets of Conformal Fuel Tanks (CFTs), Bomb Rack Units, and associated costs as part of a post-production modification to support one operational squadron. Specifically, modification efforts include: -SE/GFP Repair: Repair of Government Furnished Property (GFP); supplemental tooling and support equipment (SE) for retrofit line and operating locations -Modification NRE: Software/operating systems upgrades to system and applicable support equipment -Modification Over & Above: Work discovered during modification that is not within Retrofit scope but necessary to return aircraft to service -Data/Training: Updates to technical orders/manuals; technician and operator training -Aircraft simulator and training equipment driven by an aircraft modification or a requirement to modify the simulator. -DMSMS: Monitoring and resolving Diminishing Manufacturing Sources/Material Shortages and/or obsolescence issues -OGCs/PMA/ECOs: Program Office requirements and change order
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Aircraft Procurement, Air Force | F | FY24 Actuals | $2.66B |
| Aircraft Procurement, Air Force | F | FY24 Actuals | $79.8M |
| Aircraft Procurement, Air Force | F | FY25 Enacted | $1.81B |
| Aircraft Procurement, Air Force | F | FY26 Reconciliation | $2.48B |
| Aircraft Procurement, Air Force | F | FY26 Reconciliation | $286.7M |
| Aircraft Procurement, Air Force | F | FY26 Reconciliation | $246.9M |
| Aircraft Procurement, Air Force | F | FY26 Total | $2.48B |
| Aircraft Procurement, Air Force | F | FY26 Total | $286.7M |
| Aircraft Procurement, Air Force | F | FY26 Total | $246.9M |
Budget Details(R-2/P-40 facts)
J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.
Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element — line 1 | $5.42B | $2.66B | $1.81B | $0 | $0 |
| Program Element — line 2 | — | $79.8M | $0 | — | — |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 312 of 1,938 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high or medium confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying mentions
10 mentions from the Senate LDA disclosure database.
Department of Defense Appropriations Act, 2026 (HR 4016/ S 2572); provisions regarding R&D - Navy, Air Force, Space…
Department of Defense Appropriations Act, 2026 (HR 4016/ S XXXX); provisions regarding R&D - Army, Navy/USMC, Air…
Full-Year Continuing Appropriations and Extensions Act, 2025 (PL 119-4); provisions regarding R&D - Army, Navy/USMC…
Department of Defense Appropriations Act of 2025 (HR 8774/S 4921); provisions regarding R&D-Army, Navy/USMC, Air…
Department of Defense Appropriations Act of 2025 (HR 8774/S 4921); provisions regarding R&D-Army, Navy/USMC, Air…
Issues related to F-15EX. Issues related to defense, space and security.
F-15EX, A-10 procurement/retention
Advocating full funding on behalf of the F-15EX
Advocating full funding on behalf of the F-15EX
Advocating full funding on behalf of the F-15EX
Oversight
GAO oversight of this program
GAO assessed F-15EX in its June 2025 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15EX program is intended to address F-15C/D readiness challenges and eventually replace the F-15C/D fleet. The program began as a middle tier of acquisition effort. The F-15EX, based on a current foreign military sales aircraft design, will be upgraded with capabilities unique to the U.S., including operational flight program software and Eagle Passive Active Warning and Survivability System (EPAWSS) upgrades. EPAWSS is assessed separately in this report. The F-15EX is planned to be a complementary platform to fifth-generation F-35 and F-22 stealth aircraft operating in highly contested environments.”
GAO-25-107569, p. 72 — the assessment page in GAO’s 2025 report
Earlier editions of the same assessment: June 2024 · June 2023
GAO assessed F-15EX in its June 2024 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15EX program is intended to address F-15C/D readiness challenges and eventually replace the F-15C/D fleet. The program began as a middle tier of acquisition effort. The F-15EX, based on a current foreign military sales aircraft design, will be upgraded with capabilities unique to the U.S., including operational flight program software and Eagle Passive Active Warning and Survivability System (EPAWSS) upgrades. EPAWSS is assessed separately in this report. The F-15EX is planned to be a complementary platform to fifth-generation F-35 and F-22 stealth aircraft operating in highly contested environments.”
GAO-24-106831, p. 75 — the assessment page in GAO’s 2024 report
GAO assessed F-15EX in its June 2023 Weapon Systems Annual Assessment, as an Air Force MDAP program.
“The Air Force's F-15EX program is intended to address F-15C/D readiness challenges and eventually replace the F-15C/D fleet. The F-15EX, based on current foreign military sales aircraft, will be upgraded with capabilities unique to the U.S., including operational flight program software and Eagle Passive/Active Warning and Survivability System upgrades. The F-15EX is planned to be a complementary platform to fifth-generation F-35 and F-22 stealth aircraft operating in highly contested environments.”
GAO-23-106059, p. 81 — the assessment page in GAO’s 2023 report
GAO assessed the program, not this budget line. F-15EX is one of the lines that funds it, and GAO’s work above says nothing about this line’s own figures. Which line each GAO item attaches to is a hand-ratified crosswalk — how it was checked.
Department-level designation (not specific to this program)
GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not F-15EX. GAO's program-level work on this line is above. See the DOD oversight record.
Program dossier
Every sentence below carries its citation — warehouse figures open the citation panel, news claims link the cached source.
Research dossiers exist for 50 of 1,938 programs — the 50 largest fully J-book-detailed programs by FY2026 request. why no dossier here? →
What it is
- F-15EX (budget line F015EX) is a U.S. Air Force aircraft procurement line funded in the Aircraft Procurement, Air Force appropriation.
- The F-15EX is a new multirole-capable fighter jet based on the two-seat F-15QA (Qatar) configuration, upgraded with advanced capabilities including the Eagle Passive Active Warning Survivability System (EPAWSS) and USAF F-15 Continuous Delivery and Integration Operational Flight Program software.
- The F-15EX will be used predominantly in defensive and offensive counter-air missions at both Air National Guard and Air Combat Command operational squadrons, and it will perform the Homeland Defense mission while giving combatant commanders strike packages capable of operating in highly contested environments.
- The line covers both new-aircraft advanced procurement and a separate F-15EX Modification effort that retrofits the first 20 in-service aircraft (Lots 1 and 2) to a common production configuration, including installation of upgraded radios, anti-jam GPS, and data-link hardware.
- F-15EX aircraft have been procured over six lots from FY 2020 (Lot 1) through FY 2025 (Lot 6), and the FY 2026 modification funding also provides 18 sets of Conformal Fuel Tanks and associated hardware to support one operational squadron.
Why it matters
- The program's total funding rises to $3,014,394 thousand (about $3.0 billion) requested for FY 2026.
- In FY 2024 the program recorded actual spending of $2,739,061 thousand (about $2.74 billion), so the FY 2026 request is a modest increase over recent execution.
- The largest single piece of the FY 2026 request is a $2,480,818 thousand (about $2.48 billion) reconciliation (mandatory) request on the P-1 aircraft line.
- For the new-aircraft advanced-procurement effort, the FY 2026 request is entirely mandatory: $0 of discretionary and $2,408,818 thousand of reconciliation funding, which pays for aircraft advanced procurement, 21 F-15EX Lot 7 aircraft with conformal fuel tanks, initial spares, and other supporting requirements.
- The F-15EX Modification effort carries a further $286,700 thousand (about $287 million) FY 2026 reconciliation request, all mandatory, for conformal fuel tanks, aircraft modifications, and other supporting requirements.
- The mandatory funds are tied to Section 20007 (Air Superiority) of the Reconciliation Exhibit, and the Air Force awarded the Lot 5 contract and the Lot 6 contract (awarded 22 January 2025) as it built up the fielded fleet.
Key players
- The program is run by the U.S. Air Force, with funding drawn from the Aircraft Procurement, Air Force appropriation.
- The new-aircraft effort's research, development, and integration funding is carried in a separate program element, PE 0207146F, and does not include the eight Lot 1 aircraft funded outside this exhibit in FY 2020.
- In accordance with Section 1815 of the FY 2008 National Defense Authorization Act (P.L. 110-181), the F-15EX is designated as necessary for use by the active and reserve components for homeland defense missions, domestic emergency responses, and military support to civil authorities.
Primary sources
Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.
Budget totals · TOA sources
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · Q847,Q848
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
FY2024 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O820,O821,O822
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_P-1_Procurement.xlsx.
FY2025 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O865,O866,O867
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_P-1_Procurement.xlsx.
Detailed budget justification
The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.
FY2026 Air Force Aircraft Procurement, Vol. I · www.saffm.hq.af.mil
PDF page 71