ASSIST and eRA Commons are frequently confused because they are both part of NIH’s electronic Research Administration (eRA) system and both require the same login credentials — but they do different jobs. eRA Commons is the registration and account-management system: it is where an institution and its individual users (Principal Investigators, Signing Officials, trainees, other Senior/Key Personnel) get their accounts, and where post-submission activity (status checking, just-in-time information, progress reports, closeout) happens. ASSIST (Application Submission System & Interface for Submission Tracking) is the application-preparation and electronic-submission tool — it is where a grant application actually gets built, form by form, and routed to Grants.gov for submission to NIH. You do not register for ASSIST separately; you register for eRA Commons, and an active eRA Commons login is what gets you into ASSIST.
What eRA Commons is
eRA Commons is NIH’s account and interface system for the full grants lifecycle. An institution registers once (producing its first Signing Official and Account Administrator accounts), and those roles then create individual accounts for everyone else who needs system access. Once an account exists, eRA Commons is where a user:
- Views application and award status
- Submits Just-in-Time (JIT) information when requested
- Submits Research Performance Progress Reports (RPPR) and closeout documents
- Manages delegations (e.g., a PI delegating certain tasks to an assistant)
- Accesses ASSIST to prepare and submit a new or competing application
For a full walkthrough of institutional versus individual registration and the exact steps a Signing Official follows, see CASRAI’s eRA Commons account setup guide. For the underlying account itself, see the dictionary entries on the eRA Commons ID and eRA Commons roles (PI, SO, AA, and the rest).
What ASSIST is
ASSIST is the module inside eRA Commons where an application is actually assembled and submitted. It replaced most institutions’ reliance on third-party or institutional system-to-system (S2S) software for many NIH submissions, giving applicants a free, NIH-hosted, form-by-form web interface. In ASSIST, a user (typically an administrator, PI, or delegated preparer):
- Selects the correct funding opportunity announcement and builds the application against its specific form set
- Completes required federal-wide forms (e.g., the SF-424 Research & Related family) alongside NIH-specific forms and attachments
- Assembles multi-project applications — program projects (P01), centers (P50), and training grants (T32) with multiple components — which is one of ASSIST’s defining capabilities and a case where older PDF-based tools struggled
- Runs built-in validations before submission to catch missing or malformed data
- Routes the completed application through the institution’s Signing Official for final submission via Grants.gov to NIH
ASSIST does not have its own separate account system. Access is entirely inherited from eRA Commons: a user’s eRA Commons role determines what they can do inside ASSIST (for example, only a Signing Official can actually route/submit an application, even if a research administrator built the whole package).
How the two systems relate
It helps to think of eRA Commons as the account layer and umbrella interface, and ASSIST as one specific function that lives inside it:
| eRA Commons | ASSIST | |
|---|---|---|
| What it is | Account/registration and post-award interface | Application preparation and submission tool |
| Registration | Institution registers once; SO/AA then create individual accounts | No separate registration — uses an existing eRA Commons login |
| Primary use | Status checks, JIT, RPPR, closeout, account/role management | Building and submitting a new or competing application |
| Typical user | PI, SO, AA, trainee, admin staff | Grants/research administrator or PI preparing a submission, routed through an SO |
| Where it sits | Standalone NIH system | Module accessed from within eRA Commons |
| Submission destination | N/A (receives status back after submission) | Grants.gov, which forwards to NIH/eRA |
Where Grants.gov fits in
A third system enters at submission time: Grants.gov is the government-wide portal that many federal agencies, including NIH, use as the actual receiving point for an electronically submitted application. An ASSIST-built application is routed through Grants.gov as part of submission, then validated and pulled into the eRA system, after which status becomes visible back in eRA Commons. An institution generally needs active registrations in both Grants.gov and eRA Commons to submit to NIH — ASSIST itself does not require a separate Grants.gov login, but the institutional Grants.gov registration (via SAM.gov) has to be current for submission to succeed.
When ASSIST is (and isn’t) the right tool
Most institutions choose between ASSIST and an institutional system-to-system (S2S) solution (e.g., Cayuse, InfoEd, Kuali) for preparing NIH applications; some also still use the older non-ASSIST forms path for a shrinking set of activity codes. ASSIST tends to be the more direct choice for smaller or lower-volume applicants and for genuinely multi-project applications, since NIH built it specifically to handle those form sets well. Larger institutions with high application volume often prefer an S2S system because it can pull data from an internal grants database and integrate with local routing/approval workflows — but the destination and NIH-side validation are the same either way.
Frequently asked questions
Do I need a separate account to use ASSIST?
No. ASSIST uses your existing eRA Commons credentials. If you don’t yet have an eRA Commons account, get one through your institution’s Signing Official or Account Administrator first — see the eRA Commons account setup guide.
Can anyone with an eRA Commons account submit an application through ASSIST?
No. Anyone with an appropriate role can prepare and edit an application in ASSIST, but only a Signing Official can perform the final routing/submission step, since that action carries the institution’s official certification.
Is ASSIST required, or can I use a different system?
NIH does not require ASSIST specifically — institutions may instead use a system-to-system (S2S) solution that submits through Grants.gov, or in some cases NIH’s own forms-based routes. ASSIST is NIH’s free, directly hosted option and is generally recommended for multi-project applications and lower-volume applicants.
Does ASSIST replace eRA Commons?
No. ASSIST is a module reached through eRA Commons, not a replacement for it. Post-submission activity — status tracking, JIT, RPPR, closeout — still happens in eRA Commons itself, not in ASSIST.
What happens after I submit through ASSIST?
The application routes through Grants.gov, is validated, and pulled into the eRA system. From that point on, all status tracking and any follow-up (such as correcting an error or responding to a Just-in-Time request) happens back in eRA Commons.
For a broader look at how NIH’s account infrastructure compares to other federal research-funding systems, see CASRAI’s comparison of eRA Commons vs. Research.gov. For the application form itself, see the SF-424 (R&R) instructions guide and the Catalog of Federal Domestic Assistance (CFDA) entry for how funding opportunities are categorized.
