Verification note: This guide reflects NIH policy notices and grants.nih.gov guidance as of 17 July 2026. NIH’s funding-opportunity landscape has moved through several linked changes since early 2026 — verify against the current NIH Guide notice text before relying on any specific detail for a live application.
What changed, in brief
Starting in fiscal year 2026, NIH restructured how it issues and publishes funding opportunities in four connected ways: it is retiring hundreds of narrow, topic-specific Notices of Funding Opportunities (NOFOs) in favor of broader funding opportunity announcements and standing parent announcements; it stopped posting NOFOs in the NIH Guide for Grants and Contracts, making Grants.gov the single official source; it eliminated the Letter of Intent (LOI) and removed a long-standing prior-approval requirement for large unsolicited applications; and it began piloting a plain-language NOFO format, SimplerNOFO, across the Department of Health and Human Services. None of these are proposed changes under discussion — each has a signed NIH Guide notice behind it, cited below.
Fewer, broader NOFOs: parent announcements replace narrow ones
For years, NIH issued somewhere between 600 and 850 new funding opportunities annually, and by early 2025 more than 800 were active at once — a landscape research administrators and investigators alike had to track continuously to find the right mechanism for a given project. By the end of 2025, the number of active NIH funding opportunities had fallen to fewer than 500, per NIH’s own account of the effort (“NIH’s Path to a Simpler Funding Opportunity Landscape,” grants.nih.gov, March 2026).
The mechanism behind the reduction isn’t fewer awards, it’s consolidation: institutes and centers are retiring narrowly scoped, disease- or topic-specific NOFOs and directing applicants instead toward broad, reusable parent announcements that already exist for standard mechanisms such as the R01. NIH’s framing is that this shifts the burden of narrow-scoping away from the applicant having to find (or wait for) a hyper-specific announcement, and toward the applicant proposing their own best science within a flexible, standing opportunity that still lets peer review and the funding institute apply their own priorities at the award-decision stage. For a research office, the practical implication is that a topic that used to have its own dedicated NOFO with its own deadline, its own set-aside budget, and its own review criteria may now simply be an eligible topic under a general parent announcement — which changes how program staff should be consulted before submission, since the special messaging and set-aside signaling a narrow NOFO used to provide is gone.
Grants.gov replaces the NIH Guide as the single official source
Per NOT-OD-25-143, NIH stopped posting new NOFOs in the NIH Guide for Grants and Contracts during FY2026. Grants.gov is now the single official source for NIH grant and cooperative agreement funding opportunities — not a mirror of the NIH Guide, and not one of two equally authoritative places to check. Institutional research offices that built internal funding-opportunity alerts, saved searches, or subscription workflows around the NIH Guide need to rebuild them against Grants.gov directly; a workflow that still only watches the Guide will miss opportunities. The NIH Guide itself continues to carry other notice types (policy notices, administrative supplements, requests for information) — it’s specifically NOFOs that moved.
Letters of Intent and the $500,000 prior-approval rule: both eliminated
Per NOT-OD-26-019, NIH removed two long-standing application requirements as part of its administrative-burden-reduction effort: the Letter of Intent, and the prior-approval requirement for unsolicited applications requesting $500,000 or more in direct costs in any single year. NIH’s stated rationale for dropping the LOI is that its original purpose — helping individual institutes and centers estimate incoming peer-review workload — is largely superseded now that peer review is centralized through the Center for Scientific Review; LOIs submitted after the change take effect are not reviewed or acknowledged. For research administrators, this removes two internal-routing checkpoints that many offices had built standard operating procedures around (an LOI due-date reminder ahead of the application deadline, and a sign-off step for large unsolicited budgets) — those internal calendars and approval chains need updating so staff aren’t chasing a step NIH no longer requires, and so a genuinely large budget doesn’t slip through without the institutional review offices still want to apply voluntarily.
SimplerNOFO: a plain-language redesign, rolling out opportunity by opportunity
Separately from the consolidation and sourcing changes above, NIH is also beginning to rewrite individual NOFOs under SimplerNOFO, a Department of Health and Human Services–wide initiative to standardize structure and reduce jargon across federal funding announcements. NIH’s first NOFO issued under this format was PAR-27-032, the Maximizing Investigators’ Research Award for Early Stage Investigators (MIRA for ESIs), posted by the National Institute of General Medical Sciences in May 2026. Because SimplerNOFO is being rolled out NOFO-by-NOFO rather than all at once, applicants should expect to see a mix of legacy-format and SimplerNOFO-format announcements for some time; the practical guidance is to read each NOFO’s own structure rather than assume every current NIH opportunity follows the older template.
What this means for a research office right now
- Point funding-opportunity monitoring at Grants.gov, not the NIH Guide, for NOFOs specifically — keep the Guide watched for policy notices, which didn’t move.
- Re-check whether a topic you used to track via a dedicated NOFO now lives under a parent announcement — a standing parent announcement doesn’t expire on the same cycle a narrow NOFO did, so a deadline-tracking process built around discrete NOFO expirations may need to shift to the parent announcement’s own standing/standard due dates instead.
- Remove the LOI step from internal pre-award checklists and calendars, and confirm with your sponsored-programs office whether it still wants voluntary internal notice of large unsolicited submissions even though NIH no longer requires prior approval at the $500,000 threshold.
- Don’t assume every open NIH NOFO reads the same way — SimplerNOFO-format opportunities restructure where key requirements sit within the document; brief proposal-development staff so they don’t apply the old NOFO’s mental map to a redesigned one.
Frequently asked questions
Does NIH still require a Letter of Intent?
No. Per NOT-OD-26-019, NIH removed the LOI requirement; any LOI submitted after the notice took effect is not reviewed or acknowledged by the institute, center, or the Center for Scientific Review.
Where do I find NIH funding opportunities now that the NIH Guide isn’t the source?
Grants.gov. Per NOT-OD-25-143, it is now NIH’s single official source for NOFOs; the NIH Guide continues to carry other notice types but stopped posting new NOFOs in FY2026.
What happened to all the narrow, topic-specific NIH NOFOs?
Many were allowed to expire and were not reissued; NIH is directing that research instead toward broad, standing parent announcements as part of a deliberate consolidation, which took active NOFOs from more than 800 in early 2025 to fewer than 500 by the end of 2025.
Is the $500,000 prior-approval requirement for unsolicited NIH applications still in effect?
No, it was removed by the same NOT-OD-26-019 notice that eliminated the LOI requirement, as part of NIH’s administrative-burden-reduction effort.
What is SimplerNOFO, and does it apply to NIH?
SimplerNOFO is a Department of Health and Human Services–wide effort to standardize NOFO structure and use plain language. NIH’s first NOFO issued in the new format was PAR-27-032 (MIRA for Early Stage Investigators), posted in May 2026; the rollout is opportunity-by-opportunity, not an instant, site-wide reformat.
