NIH Appropriations

NIH funding is vital to the careers of many AAI members and the biomedical research enterprise as a whole.

The $41.7 billion NIH budget for fiscal year (FY) 2020 funds more than 300,000 extramural scientists at 2,500 universities, medical schools, and research institutions. Approximately 80% of the NIH budget is awarded to extramural scientists; about 10% supports the work of NIH's nearly 6,000 intramural scientists. (see:

NIH funding has a huge impact on the advancement of biomedical research and on the economy (local, state, national, and international).


In December 2019, Congress and President Donald Trump reached an agreement on funding bills for FY 2020, including the Labor, Health and Human Services, Education, and Related Agencies funding bill that funds NIH. The funding law increased the NIH budget by $2.6 billion (6.6%) for a total NIH budget of $41.7 billion for FY 2020. Thanks to remarkable Congressional support, the NIH budget has now increased by $11.6 billion (39%) over the past five years.

Here is a look at how some of this new NIH funding was allocated:

Almost all NIH Institutes and Centers received an increase of at least 3.3% under the new law. The National Institute of Allergy and Infectious Diseases (NIAID) saw its budget go up by 6.6%, the budget for the National Cancer Institute increased by 4.8%, and the National Institute on Aging continued to grow at a rapid pace with an increase of 14.9%.

© The American Association of Immunologists, Inc.
1451 Rockville Pike, Suite 650, Rockville, Maryland 20852
Phone: (301) 634-7178 | Fax: (301) 634-7887