Supplemental Funding

Scope Note

For currently funded NIH grants, supplemental funding may be available through competing revisions to expand a project's scope and administrative supplements to meet unanticipated costs or support career re-entry without a change of scope.

Competing Revision and Administrative Supplement Comparison

Current recipients of NIH grants and cooperative agreements can request supplemental funding through the submission of two specific types of revision applications.: 

The following table outlines the differences and similarities between them.

Item Competing Revisions Administrative Supplements (Non-competing Revisions)
Purpose Increase support in a current project period for expansion of the project's approved scope or research protocol Provide additional funding to meet increased costs that are within the approved project’s scope, but were unforeseen when the original award was made
Timing Requested project period must be within the awarded project period, unless stated otherwise in the funding opportunity Requested project period must be within the awarded project period, unless stated otherwise in the funding opportunity
Funding Opportunities Use an opportunity that specifies Revision as an allowable application type and describes scientific peer review in the application review information section Use Administrative Supplement Parent Announcement
Budget Forms Use the same budget format (R&R Budget or PHS 398 Modular Budget) as the current award Use R&R Budget form
Cover Letter and Assignment Request Forms Can be used to convey information to receipt and referral staff Do not use - applications automatically sent to awarding institute and center staff (bypassing receipt and referral)
Application Submission Submitted electronically using chosen submission options (ASSIST, Grants.gov Workspace, or a system-to-system solution) Same process as general applications - submitted electronically using chosen submission options (ASSIST, Grants.gov Workspace, or a system-to-system solution)
Review Undergoes standard peer review and competes with new, revision, resubmission, and renewal applications for general funds Administratively reviewed within funding institute or center

This page last updated on: August 21, 2025
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