National Center for Science and Engineering Statistics | NSF 26-309 Table 18. National Institutes of Health, federal budget authority for R&D and R&D plant: FYs 2024–26 (Millions of dollars and percent change) Organization and program, by FY 2023 rank order 2024 actual ($millions) 2025 preliminarya ($millions) 2026 proposed ($millions) 2024–25 (% change) 2025–26 (% change) R&D and R&D plant 45,623 45,201 27,082 -0.9 -40.1 National Cancer Institute 7,094 7,080 4,476 -0.2 -36.8 National Institute on Body Systems na na 4,177
National Heart, Lung, and Blood Institute 3,125 3,102 na -0.7
National Institute of Diabetes and Digestive and Kidney Diseases 2,427 2,351 na -3.1
National Institute of Arthritis and Musculoskeletal and Skin Diseases 663 663 na 0.0
National Institute on Neuroscience and Brain Research na na 2,384
National Institute of Dental and Craniofacial Research 503 503 na -0.1
National Institute of Neurological Disorders and Stroke 2,639 2,598 na -1.5
National Eye Institute 878 876 na -0.2
National Institute of Allergy and Infectious Diseases 6,446 6,448 4,123 0.0 -36.1 National Institute of General Medical Sciences (new) na na 3,195
National Institute of General Medical Sciences 1,761 1,746 na -0.9
National Human Genome Research Institute 646 643 na -0.5
National Library of Medicine 492 493 na 0.0
National Center for Advancing Translational Sciences 893 890 na -0.3
National Institute of Biomedical Imaging and Bioengineering 391 387 na -1.1
National Institute for Child and Women's Health, Sensory Disorders, and Communication na na 1,361
National Institute of Child Health and Human Development 1,704 1,703 na -0.1
National Institute on Deafness and Other Communication Disorders 516 518 na 0.4
National Institute on Aging 4,434 4,435 2,652 0.0 -40.2 National Institute of Behavioral Health na na 2,702
National Institute on Drug Abuse 1,624 1,620 na -0.3
National Institute on Alcohol Abuse and Alcoholism 576 576 na 0.0
National Institute of Mental Health 2,225 2,185 na -1.8
Office of the Director 2,823 2,623 1,674 -7.1 -36.2 National Institute of Environmental Health Sciences 966 964 na -0.2
National Institute on Minority Health and Health Disparities 531 531 na 0.0
National Institute of Nursing Research 187 187 na -0.2
National Center for Complementary and Integrative Health 158 160 na 1.9
John E. Fogarty International Center 71 70 na -0.9
Advanced Research Projects Agency for Healthb 1,500 1,500 na 0.0
Buildings and facilities 350 350 340 0.0 -2.9 R&D 45,243 44,821 26,712 -0.9 -40.4 National Cancer Institute 7,064 7,050 4,446 -0.2 -36.9 National Institute on Body Systems na na 4,177
National Heart, Lung, and Blood Institute 3,125 3,102 na -0.7
National Institute of Diabetes and Digestive and Kidney Diseases 2,427 2,351 na -3.1
National Center for Science and Engineering Statistics | NSF 26-309 Table 18. National Institutes of Health, federal budget authority for R&D and R&D plant: FYs 2024–26 (Millions of dollars and percent change) Organization and program, by FY 2023 rank order 2024 actual ($millions) 2025 preliminarya ($millions) 2026 proposed ($millions) 2024–25 (% change) 2025–26 (% change) National Institute of Arthritis and Musculoskeletal and Skin Diseases 663 663 na 0.0
National Institute on Neuroscience and Brain Research na na 2,384
National Institute of Dental and Craniofacial Research 503 503 na -0.1
National Institute of Neurological Disorders and Stroke 2,639 2,598 na -1.5
National Eye Institute 878 876 na -0.2
National Institute of Allergy and Infectious Diseases 6,446 6,448 4,123 0.0 -36.1 National Institute of General Medical Sciences (new) na na 3,195
National Institute of General Medical Sciences 1,761 1,746 na -0.9
National Human Genome Research Institute 646 643 na -0.5
National Library of Medicine 492 493 na 0.0
National Center for Advancing Translational Sciences 893 890 na -0.3
National Institute of Biomedical Imaging and Bioengineering 391 387 na -1.1
National Institute for Child and Women's Health, Sensory Disorders, and Communication na na 1,361
National Institute of Child Health and Human Development 1,704 1,703 na -0.1
National Institute on Deafness and Other Communication Disorders 516 518 na 0.4
National Institute on Aging 4,434 4,435 2,652 0.0 -40.2 National Institute of Behavioral Health na na 2,702
National Institute on Drug Abuse 1,624 1,620 na -0.3
National Institute on Alcohol Abuse and Alcoholism 576 576 na 0.0
National Institute of Mental Health 2,225 2,185 na -1.8
Office of the Director 2,823 2,623 1,674 -7.1 -36.2 National Institute of Environmental Health Sciences 966 964 na -0.2
National Institute on Minority Health and Health Disparities 531 531 na 0.0
National Institute of Nursing Research 187 187 na -0.2
National Center for Complementary and Integrative Health 158 160 na 1.9
John E. Fogarty International Center 71 70 na -0.9
Advanced Research Projects Agency for Healthb 1,500 1,500 na 0.0
Buildings and facilities 0 0 0 0.0
National Center for Science and Engineering Statistics | NSF 26-309 na = not applicable; agency or agency subdivision did not exist as such. a The preliminary data available from the agencies for FY 2025 at the time of this report reflect mainly the annualized continuing resolution funding levels that existed through early March 2025, which were later extended by a continuing resolution to the end of FY 2025. b Advanced Research Projects Agency for Health (ARPA-H) is an independent agency created by the Congress (P.L. 117-103) in mid-March 2022. The agency is recognized as part of the National Institutes of Health (NIH) budget but reports to the Secretary of Health and Human Services. In the FY 2026 Presidential Budget Request, ARPA-H has been moved into the Assistant Secretary for a Healthy Future. c The FY 2026 Presidential Budget Request proposed funding according to a new organization plan for NIH that would fold the 27 institutes into 8 and move ARPA- H formally outside of NIH. This table identifies the existing institutes and centers for FYs 2024–25 and the proposed restructuring for FY 2026. Note(s): Detail may not add to total because of rounding. Percent change is calculated on unrounded data. Source(s): Agencies' submissions to the Office of Management and Budget (OMB) per MAX Schedule C, agencies' budget justification documents, supplemental data obtained from agencies' budget offices, and Executive Office of the President, OMB, Budget of the United States Government, Fiscal Year 2026.