Federal Grants

SF-424 Explained: The Federal Grant Cover Form

Grant Writing Service Editorial Team

June 12, 2026 · 6 min read

Table of contents

Key takeaways

  • The SF-424 (Application for Federal Assistance) is the cover form for most federal grant applications; it identifies the applicant, the program, the project and the amount requested.
  • The correct copy is the one inside your opportunity's Grants.gov Workspace. Sample PDFs from the forms repository or other websites cannot be submitted.
  • Your legal name, UEI and address must match your active SAM.gov registration exactly, or the package fails validation.

The SF-424 is the Application for Federal Assistance, the standard cover form that begins almost every federal grant application. It captures the basics: your organization's legal identity and Unique Entity Identifier (UEI), the program you are applying to, the project title, dates and geography, the funding requested, and the signature of the official authorized to commit your organization. It sits at the front of your application package in Grants.gov and travels with companion forms such as the SF-424A budget.

Most results for this form are official PDFs that show the boxes without explaining them. This page covers what the official copies leave out: what each part is really asking for, where the correct fillable form lives, which variant you need, and why packages fail on a form that looks simple.

What the form asks, part by part

The SF-424 has 21 numbered items. Grouped by purpose, they look like this.

ItemsWhat they captureWhere the answer comes from
1 to 7Type of submission (preapplication, application, changed or corrected), type of application (new, continuation, revision), identifiers and state review datesYour situation and the funding notice; several are left blank on new applications
8a to 8fLegal name, EIN, UEI, address, organizational unit, contact personYour SAM.gov record, character for character
9 and 10Type of applicant (up to three codes) and the federal agencyYour organization type and the notice
11 and 12Assistance listing number and funding opportunity numberPrefilled in the Grants.gov package; never typed from memory
13 to 17Competition number, areas affected, project title, congressional districts, start and end datesYour project plan
18Estimated funding by source: federal, applicant, state, local, other, program incomeYour budget, consistent with the SF-424A
19 to 21State review under Executive Order 12372, federal debt delinquency, authorized representativeThe notice, your finance office, and your governance records

Two items surprise first-time applicants. Item 4, the applicant identifier, is simply your own internal tracking or control number, if you use one; it is optional. And item 18 asks for the amount requested for the first funding or budget period under the Grants.gov instructions, though some agencies tell you to enter the whole project. Follow your notice, and make sure the figures agree with your budget forms either way.

For every item in order, including the code lists and formats such as CA-012 for congressional districts, use our field-by-field SF-424 instructions.

Where to get the official fillable SF-424

Searching for a fillable SF-424 usually turns up a generic PDF on an agency site or a form-filling service. Those copies are fine for previewing the fields, but they are the wrong copy to submit. The form that counts is the one attached to your opportunity.

  1. Find the opportunity on Grants.gov and open it.
  2. Select Apply to create a Workspace, the container that holds the whole package and lets several people work on different forms at once.
  3. In the Workspace forms list, complete the SF-424 either as a webform in the browser or by downloading the fillable PDF.

The Workspace copy arrives with the funding opportunity number and assistance listing number already filled in, and a downloaded PDF carries identifiers that tie it to that specific application. A copy taken from another Workspace, an old application or a public website will fail when you upload it, even if every field is correct. Grants.gov's own forms repository says the same about its sample PDFs: they cannot be submitted with an application package.

If a downloaded form shows a blank page or a message asking for Adobe Reader, save it to disk and open it in a current version of Adobe Acrobat Reader. Browser PDF viewers and most third-party readers do not support these forms.

Which SF-424 do you need?

There is not one SF-424. Grants.gov maintains several form families, and the agency picks the one that goes in your package.

Form familyTypically used for
SF-424 (standard)Most organizational applications for discretionary grants
SF-424 Short OrganizationalPrograms that ask for a shorter set of applicant information
SF-424 IndividualOpportunities open to individuals rather than organizations
SF-424 MandatoryMandatory and formula programs, such as many grants to states
SF-424 (Research and Related)Research applications to agencies such as NIH and NSF, with research-specific companion forms

You never choose between them yourself. Whatever family is in the Workspace for your opportunity is the one the agency expects.

The companion forms

The SF-424 rarely travels alone. In a standard non-construction package you will usually see:

  • The SF-424A budget form: budget information for non-construction programs, by object class category such as personnel, travel and contractual. It breaks down the money that item 18 summarizes.
  • The SF-424B assurances: standard assurances for non-construction programs. Many agencies stopped collecting this form after the same commitments moved into SAM.gov registration in 2019 and 2020, but some notices still include it.
  • SF-424C and SF-424D: the construction counterparts to the budget and assurances forms.

A simple way to remember the suffixes: A and C are budget forms, B and D are assurances; A and B are for non-construction programs, C and D for construction.

Why SF-424s get packages rejected

Grants.gov validates the package when it is submitted, and a handful of SF-424 problems cause most of the failures and delays:

  • Name or UEI mismatch. The legal name and UEI must match your SAM.gov record exactly. "Inc." on one record and not the other is enough.
  • Expired or inactive SAM.gov registration. Registration must be renewed every year. A lapsed registration blocks submission no matter how clean the form is.
  • Wrong assistance listing number. Usually copied from last year's application. Listings are renumbered and retired.
  • Wrong person submitting. Only someone holding the Authorized Organization Representative role in Grants.gov can submit, and submission applies their signature to item 21.
  • Figures that disagree with the budget. Item 18 that does not match the SF-424A will not always fail validation, but reviewers and grants officers notice, and it can trigger questions or a request to correct the package.
  • Expired form version. Agencies will not accept an outdated version, which is another reason to work only from your Workspace copy.

Fix the registration before you touch the form

Almost every item that fails validation depends on something that takes weeks to fix, so the real work happens long before you open the form. Grants.gov advises allowing up to 10 business days for a SAM.gov registration to become active, and longer if your information cannot be verified. If registration lapses or is still pending at the deadline, a flawless SF-424 still cannot be submitted.

Sequence the work so the form becomes transcription:

  1. Confirm your SAM.gov registration is active and will not expire before the deadline, ideally not during the project period either. Our guide to registering in SAM.gov and Grants.gov covers the steps.
  2. Copy the legal name, UEI and address from SAM.gov into a worksheet, so nobody types them from memory.
  3. Confirm your Authorized Organization Representative has the role in Grants.gov and is available on submission day. Roles are assigned by your organization's E-Business Point of Contact and are not instant.
  4. Take the program details from the funding notice for your opportunity, including which form family and attachments it requires.
  5. Fill item 18 last, after the budget is frozen, and reconcile it with the SF-424A.

Handled this way, completing the SF-424 takes minutes. The cover form earns no points on its own, but an inconsistent one costs credibility before anyone reads your project narrative, and a non-compliant one can stop the application before review. For where this form sits in the full process, see our step-by-step guide to applying for federal grants.

About the author

Grant Writing Service Editorial Team

Grant writers and reviewers

Written and reviewed by the Grant Writing Service team, the grant writers who research funders and draft foundation, federal, nonprofit, and research proposals for our clients. We update guides when funder rules, forms, or deadlines change.

Frequently asked questions

What is the SF 424 application for federal assistance?+

The SF-424, formally the Application for Federal Assistance, is the standard cover form for most federal grant and cooperative agreement applications. It records the applicant's legal name, Unique Entity Identifier and address, the assistance listing and funding opportunity numbers, the project title, dates and congressional districts, the estimated funding, and the signature of the authorized representative.

What is the difference between SF 424 and SF 424A?+

The SF-424 is the cover form that says who is applying, for which program and for how much. The SF-424A is the budget information form for non-construction programs, which breaks the request into object class categories such as personnel, travel, contractual and indirect costs. Most non-construction packages require both, and their funding figures must agree.

What is the current version of the SF-424 form?+

The published Grants.gov instructions cover SF-424 version 4.0 under OMB number 4040-0004. Versions are renewed and occasionally revised, so the safest rule is to use whatever version comes inside your opportunity's application package in Grants.gov, which is always the version that agency will accept.

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