A no-cost extension (NCE) lets a grant recipient keep spending unobligated award funds for additional time to finish the originally approved scope of work, without NIH providing any additional money. NIH treats NCEs as two distinct mechanisms with different approval requirements, and confusing the two is one of the most common sponsored-programs errors: a first no-cost extension is largely self-authorized by the recipient institution under delegated “expanded authority,” while a second or later no-cost extension requires NIH’s formal, discretionary approval. This guide covers both tracks, who can submit each one, the timing windows, common justifications, and what an NCE cannot be used for.
What an NIH no-cost extension actually changes
An NCE extends the final budget period of the project period — it does not add money, and it does not, by itself, change the approved scope of work. See the general concept entry for no-cost extension (NCE) for how the mechanism works across funders generally, including the equivalent Uniform Guidance and UKRI provisions; this page focuses specifically on how NIH implements it. NIH’s authority for the extension sits in the period of performance language of the Notice of Award and in the NIH Grants Policy Statement’s Standard Terms of Award (Section 8.1.1), which describes the recipient’s one-time authority to extend the final budget period without additional NIH funds.
The first NCE: grantee-authorized under expanded authority
For most NIH grant mechanisms, the recipient institution has “expanded authority” — a set of post-award flexibilities NIH delegates to recipients so routine administrative actions don’t require a separate NIH approval each time. A first no-cost extension is one of those flexibilities. It is not automatic in the sense of happening on its own, but it is grantee-authorized: the institution decides to exercise it and notifies NIH, rather than asking NIH’s permission in advance.
- Length: up to 12 months beyond the originally established project period end date, one time only.
- How it’s exercised: the institution’s eRA Commons Signing Official (SO) — not the principal investigator — submits the extension through the Status screen in eRA Commons. This creates the extension notice; NIH does not need to separately approve it if the conditions below are met.
- Timing window: the extension option becomes available in eRA Commons approximately 90 days before the current project period end date, and it must be exercised before that end date. Once the project period has already lapsed, this route is closed and the second-NCE process applies instead.
- Conditions: the Notice of Award must not specifically prohibit the extension, and the approved scope of the project must not change as a result. Some award types and situations fall outside expanded authority entirely — for example, an award where the one-time authority has already been used, or where the terms of award withhold expanded authority for that mechanism — in which case any extension request has to go through the prior-approval route below even for what would otherwise be a “first” extension.
The second (or later) NCE: NIH prior approval required
A second no-cost extension on the same award is never covered by expanded authority. It requires a formal prior approval request to the awarding NIH Institute or Center, and NIH can decline it — this is a discretionary approval, not a notification.
- How to request it: the Signing Official submits the request through the Prior Approval module in eRA Commons, not the Status screen used for the first NCE.
- Eligibility window: the request can be submitted once fewer than 90 days remain before the project period end date, and up to 270 days after that end date, provided the award has not already been formally closed out.
- Required documentation: a written justification explaining why the additional time is needed and why the work could not be completed within the existing period. NIH may also ask for a progress report and/or budget information before deciding.
- Outcome: NIH’s decision is discretionary and mechanism/Institute-specific — there is no guaranteed approval, and some award types (certain training and career awards among them) are subject to additional restrictions on repeat extensions.
Who can submit an NCE request
For both the first and any subsequent no-cost extension, only the institution’s Signing Official has the eRA Commons role permissions to submit the request — a principal investigator cannot submit either one directly, though the PI typically drafts the justification and the SO transmits it. Institutions that don’t already have this workflow documented should confirm SO coverage and eRA Commons role assignments well before the 90-day window opens; see How to Set Up an eRA Commons Account for the underlying role-management mechanics, and eRA Commons vs. Research.gov if your institution is coordinating a comparable request across NIH and NSF awards on related projects.
Common reasons NIH grantees request an NCE
NIH does not require a specific list of qualifying reasons for a first, grantee-authorized NCE, but institutional research offices typically document one of the following when justifying either NCE type internally, and prior-approval requests for a second NCE need to state the reason explicitly:
- Recruitment or staffing delays — time lost identifying, hiring, or onboarding key personnel, including a new PI transition.
- Delays in participant recruitment or enrollment, particularly for clinical or human-subjects research where accrual ran slower than projected.
- Equipment, reagent, or core-facility delays that pushed back when data collection could actually start.
- IRB, IACUC, or other regulatory approval delays that consumed part of the project period before work could begin.
- Analysis or dissemination time — data collection finished on schedule but additional time is needed to complete analysis, manuscript preparation, or final reporting.
- Unanticipated disruptions outside the recipient’s control, such as a natural disaster, a subrecipient delay, or a lapse in federal appropriations affecting award processing (see NIH Government Shutdown Impact for how funding lapses interact with award timing more broadly).
What an NCE cannot be used for
NIH is explicit that a no-cost extension exists to finish the originally approved project, not to fund something new:
- It cannot be used to add new scope, aims, or objectives not already approved in the current project period.
- It is not a substitute for requesting additional funds — if the work genuinely needs more money, that is a separate competing or non-competing supplement request, not an NCE.
- It generally cannot be used to compensate for poor planning or routine administrative delay unrelated to the reasons above — NIH Institutes/Centers reviewing a second-NCE justification are specifically evaluating whether the stated reason holds up.
- An NCE does not reopen or change budget category restrictions beyond what the recipient’s existing rebudgeting authority already allows.
Practical timeline for research administrators
- ~120 days before project period end: program/finance review remaining funds and progress against aims; decide internally whether an extension is likely to be needed.
- ~90 days before project period end: the first-NCE option becomes available in eRA Commons if expanded authority applies; the SO can exercise it any time before the end date if the decision is made.
- If the project period has already ended, or a second NCE is needed: submit through the Prior Approval module, with justification (and progress report/budget documentation if NIH requests it), within the up-to-270-day post-end-date window.
- After the extension is granted: update internal award records, confirm the new project period end date is reflected in the institution’s financial system, and communicate the revised timeline to the PI and any subrecipients.
Frequently asked questions
Does NIH have to approve a first no-cost extension?
No — a first NCE exercised under expanded authority is a notification, not an approval request, provided the Notice of Award doesn’t prohibit it and the scope isn’t changing. NIH can still intervene afterward if it disagrees with how the authority was used, but it does not pre-approve each one.
Can a principal investigator submit an NCE request directly?
No. Only the institution’s Signing Official has the eRA Commons role permissions to submit either a first or second no-cost extension request. The PI typically prepares the justification, but the SO is the one who transmits it to NIH.
How long can an NIH no-cost extension last?
A first, grantee-authorized NCE is limited to 12 months beyond the original project period end date. A second or later NCE’s length is decided case-by-case by the awarding NIH Institute or Center as part of its discretionary approval.
What happens if we miss the window to request a second NCE?
The Prior Approval module request must generally be submitted no more than 270 days after the project period end date, and only while the award has not already been closed out. Once closeout has occurred, this route is no longer available.
Is a no-cost extension the same for every NIH grant mechanism?
Not entirely. Some mechanisms and award types have restrictions layered on top of the general process above — for example, certain training and career-development awards face additional limits on repeat extensions. Recipients should confirm the specific Notice of Award terms and the current NIH Grants Policy Statement before assuming standard expanded authority applies.
Related CASRAI resources
- No-cost extension (NCE) — the general, funder-agnostic concept, including UKRI and Uniform Guidance treatment.
- No-cost extension (lifecycle context) — where an NCE fits in the broader award-modification lifecycle.
- Period of Performance
- NIH Prior Approval
- Prior Approval (general concept)
- eRA Commons ID
- How to Set Up an eRA Commons Account
- NIH Government Shutdown Impact
- Grants Management & Research Funding
