Everything an NIH R-series or SBIR/STTR applicant needs to apply — free, sourced, and dated.
WE RE-VERIFY EVERY RULE QUARTERLY. LAST PASS: 09 JUL 2026.
The NIH Submission Rules & Readiness Checklist
Every rule that can get your application withdrawn before a reviewer reads a word. Sourced and dated.
Open →Deadline Calendar
SBIR/STTR standard dates are January 5, April 5, and September 5 — moving to the next business day on weekends and federal holidays. Subscribe and stop checking.
Open →Activity Code Lookup
'SBIR Phase I' isn't a page limit. R43 is. Find your code, your limits, and your next deadline.
Open →Registration Runway Planner
Enter your deadline. Get every registration backward-dated — SAM.gov, SBA Company Registry, eRA Commons, Grants.gov.
Open →SBIR/STTR Budget Caps
Phase I, Phase II, and CRP guideline levels — with the fee, indirect, and IC-waiver context that turns a number into a defensible budget.
Open →NIH Review Criteria (2025 Framework)
Factor 1, Factor 2, Factor 3, Overall Impact, and what 'Not Discussed' means. The framework your reviewers actually use.
Open →NIH Page-Limit Matrix
Every attachment, every activity code. Specific Aims, Research Strategy, Commercialization Plan, Introduction — SBIR/STTR rows highlighted.
Open →NIH & SBIR Glossary
NOFO, JIT, RPPR, MPI, SRO, Payline, ESI, UEI — every acronym that trips up first-time applicants, in plain English.
Open →NIH Resubmission (A1) Guide
One shot, on a 37-month clock. The rules, the 1-page Introduction, and when to send a fresh A0 instead.
Open →Just-In-Time (JIT) Checklist
Other Support, IRB/IACUC, training certs, updated budget — every item NIH asks for after a favorable score.
Open →NIH Institutes & Centers — SBIR/STTR Guide
Which IC funds your thing? Profiles of the highest-activity NIH institutes for SBIR/STTR — focus areas, clinical-trial policy, and small business links.
Open →What changed in the 2026 SBIR/STTR parent solicitations
Single Clinical Trial Optional pathway, higher IC-specific ceilings, no late applications, and the new foreign-subaward bar — with citations to PA-27-100 and PA-27-102.
Open →NIH Paylines by Institute — NIA, NIAID, NHLBI
Who still publishes a percentile cutoff and who retired it. NIAID dropped the score cutoff for FY2026; NHLBI's FY2025 R01 payline was the 12th percentile. Sourced to NIH funding policy.
Open →All of these work without an account. No login wall. Ever.