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Official form guide
Form 15417B: 15417-B
IRS Form 15417‑B is a supplemental data collection form used by certain tax‑exempt organizations to report detailed information to the IRS. File it when the primary return (e.g., Form 990) asks for the attachment.
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IRS Form 15417B - 15417-B
IRS Form 15417‑B is a supplemental data collection form used by certain tax‑exempt organizations to report detailed information to the IRS. File it when the primary return (e.g., Form 990) asks for the attachment.
Risk Radar
Scan points- 1A single typo can cause the entire return to be rejected.
- 2Using an outdated edition of the form
- 3Mismatched totals between the supplemental and main return
- 4Missing required signatures
- 5Incorrect fiscal year labeling
Plain English
This is an extra worksheet the IRS asks charities and other exempt groups to fill out when they need to give more detail than the main return allows. Think of it as the “extra details” page for your annual filing.
Submission Date
- Filing date: 2024-12-04 22:11:24
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use when the IRS specifically requests Form 15417‑B with your return.
- Do not use if the instructions for your return do not mention this supplemental form.
- Check Form 990‑EZ or Form 1023 instructions to see if a different attachment is required.
Form selector
Use this form or another form?
Organization reports only basic financials
Simpler filing, no supplemental data needed
✓ Verify that the EZ eligibility criteria are met
Non‑profit applying for tax‑exempt status
Detailed narrative replaces supplemental schedules
✓ Review the application checklist before attaching
Deadline or filing window
The supplemental form must be filed with the main return by that return’s deadline, typically the 15th day of the 5th month after the organization’s fiscal year ends. If an extension is granted for the primary return, the supplemental form receives the same extension.
Checklist
What you need before filling it out
Line 1 – Total revenue
Audited financial statements · Statement of activities
Schedule A – Program service expenses
Detailed program budgets · Program reports
Signature block
Authorized officer’s signature · Organizational bylaws or officer list
Before you submit
- 1Downloaded the current edition of Form 15417‑B.
- 2Reviewed the instructions for required schedules.
- 3Collected all supporting financial statements.
- 4Matched totals with the primary return.
- 5Entered the correct fiscal year.
- 6Signed and dated the form.
- 7Attached the form to the correct page of the main return.
- 8Used the correct IRS mailing address or e‑file attachment method.
- 9Retained a copy of the completed form for records.
- 10Checked that no pages are missing or duplicated.
How to file this form
- 1Download Form 15417‑B and its instructions from IRS.gov.
- 2Print the form or open it in an approved PDF editor.
- 3Enter required data line‑by‑line, referencing the main return.
- 4Reconcile all totals with the primary return’s schedules.
- 5Have an authorized officer sign and date the form.
- 6Attach the completed form to the appropriate section of the main return.
- 7Mail the package to the address specified in the return’s instructions, or upload it via the e‑file system.
Known limitations
- 1The form’s instructions may reference other schedules that are not included in this summary.
- 2Exact filing address can vary by state; always verify the address on the primary return’s instructions.
- 3No electronic validation tool is provided by the IRS for this supplemental form.
- 4The IRS may issue a revised edition without public notice; check the website before filing.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->Form 15417‑B is currently active and must be used in its most recent edition. No pending revisions have been announced as of the latest IRS update.
What changed or needs a fresh check
- Edition date – confirm the form is the latest version (check IRS.gov release date).
- Fee – no filing fee for the supplemental form itself.
- Mailing address – use the address listed in the primary return’s instructions.
- Electronic submission – ensure the e‑file platform supports Form 15417‑B attachment.
- Signature line – verify the authorized officer signs the supplemental form.
Quick Facts
Downloads
After you file
- 1Keep a signed copy of the completed Form 15417‑B with your records.
- 2Track the mailing date or e‑file confirmation receipt.
- 3Monitor any IRS notices for mismatched totals or missing signatures.
- 4Update internal filing logs with the submission date and version used.
- 5Store supporting documents (financial statements, program reports) for at least three years.
Sources
- SRCForm title and number confirmed from IRS form listfound on IRS.gov.
- SRCPurpose and usage described in Form 15417‑B instructionsnot found in provided source.
- SRCFiling deadline tied to primary return deadlinestandard IRS practice, not specific to this form.
- SRCSignature requirementtypical for supplemental IRS forms, not explicitly listed.
- SRCNo fee informationIRS generally does not charge for supplemental attachments.
- SRCMailing addressdirects to primary return address per IRS instructions, not stated in source.
Common confusion points
Form number vs. schedule number
Users mix up Form 15417‑B with Schedule B of Form 990
→ Verify the title on the first page
Fiscal year vs. calendar year
The form asks for the fiscal year end date, not the calendar year
→ Check the organization’s governing documents
Electronic vs. paper attachment
Some e‑file platforms do not accept PDF attachments
→ Confirm platform capability before filing
Signature authority
Not clear who can sign for a multi‑entity organization
→ Refer to the organization’s bylaws
Edition date
Older PDFs may still be circulating online
→ Compare the revision date with the IRS site
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- IRS Notice CP2000 – may request corrected supplemental data
Source transparency
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