Key stages in the cycle:

• The president submits a full budget request, typically by the first Monday in February
• Agency leaders testify before appropriations subcommittees
• Congressional committees draft and mark up spending bills
• Both chambers pass their versions and reconcile differences
• The president signs the final appropriations measures into law

Under this system, even large proposed cuts frequently do not survive the legislative process intact.

What is the timeline for fiscal year 2027?

The fiscal year 2027 appropriations cycle is now underway. The administration has released its initial blueprint; the more detailed budget request typically follows within weeks. Hearings on the proposal are expected in the spring, with committee markups later in 2026.

Why science funding proposals matter

Federal science budgets fund research at national laboratories, universities, and research institutes. Major agencies such as NIH, NSF, DOE Office of Science, and NASA together support tens of thousands of research grants, fellowships, and infrastructure projects across the country. A proposed cut of the magnitude described by C&EN would affect grant cycles, hiring, and multi-year research programs if enacted as proposed.

However, the gap between a presidential budget request and final appropriations is a standard feature of the U.S. budget process.

What happens next?

C&EN and other outlets are expected to publish more detailed analyses once the administration's full budget request is released. Universities, scientific societies, and patient advocacy groups typically submit testimony and lobby Congress during the appropriations process, often shaping the final funding levels.

Readers should treat early reporting on budget proposals as a starting point rather than a final outcome, since congressional action can substantially alter the proposal.