The National Institutes of Health maintains a $47.5 billion annual budget, with over 80% distributed as grants supporting biomedical research that has historically led to major scientific advances. While the agency’s total funding level has remained relatively stable under the current administration, experts highlight that aggregate figures mask significant operational disruptions affecting researchers and institutions.
Since the presidential inauguration in 2025, the process of obligating appropriated funds to specific research projects has substantially slowed. In fiscal year 2025, NIH obligations ran approximately 44 days behind the historical average from 2021 to 2024, a gap that persisted at around 42 days through early July 2026. Data shows that by July of the current fiscal year, the agency had obligated roughly half its budget, leaving billions unallocated despite being three-quarters through the funding cycle.
A former director of extramural operations at the National Human Genome Research Institute attributed delays to additional layers of review introduced in the grant-approval process. She noted the emergence of an intermediate review status that gates awards before they are finalized, with rejections coming from the Department of Health and Human Services, Office of Management and Budget, or the White House. Concurrent staffing reductions, including decreases in grants-management specialists from 11 to 3 at her institute, have compounded processing bottlenecks.
Multi-year grants, which typically renew annually and fund laboratory operations, salaries, and clinical trial expenses, have been particularly affected. Renewal delays exceeding 90 days occurred at rates four to six times higher during recent fiscal years compared to 2021 through 2024. Researchers have responded by planning budget cuts or seeking institutional bridge funding, though such interim support is time-limited. Department of Health and Human Services officials maintain that current practices support responsible stewardship and rigorous science, while legal challenges and congressional budget actions have restored some funding protections.
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