Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.

IRSOther IRS Forms (4000–6999)

Official form guide

Form 4977: 4977

IRS Form 4977 reports taxable income for tax‑exempt organizations that must file a Form 990. Use it when the organization has unrelated business income or other taxable earnings.

Fillable formOpen in Editor->Download blank PDF

Need help with Form 4977?

Open it in the AI Editor for field guidance, checks, and PDF export.

Fillable formOpen in Editor->

Form Overview

IRS Form 4977 - 4977

IRS Form 4977 reports taxable income for tax‑exempt organizations that must file a Form 990. Use it when the organization has unrelated business income or other taxable earnings.

The form captures total taxable income, deductions, tax liability, and any payments or credits related to that income.

Risk Radar

Scan points
  • 1A single mis‑calculated tax amount can trigger penalties and an audit.
  • 2Missing unrelated business income
  • 3Incorrect tax rate applied
  • 4Failure to attach supporting schedules
  • 5Signature omitted or dated incorrectly

Plain English

If a nonprofit that normally files Form 990 earns money that the IRS taxes—like rent, sales, or a side business—it must fill out Form 4977. The form tells the IRS how much of that income is taxable.

Submission Date

  • Filing date: 2012-07-17 00:00:00
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

AI co-pilot

Fill it faster. Catch mistakes before you file.

Explains confusing fields in plain English
Flags missing signatures, dates, IDs, and attachments
Keeps the PDF ready for editor, send, and proof flows
Open AI workspace->

Glossary Terms

liabilityincomemoney

Hover a term to preview the meaning.

What this form is for

  • Use when the exempt organization has taxable unrelated business income.
  • Do not use for organizations that report only exempt income.
  • If the organization files Form 990‑EZ, check if Form 4977 is still required.

Form selector

Use this form or another form?

Unrelated business income only

Captures income and deductions directly on the 990

✓ Verify that Schedule C covers all taxable activities

Schedule C (Form 990)

Tax‑exempt organization with no taxable income

No taxable income to report

✓ Confirm zero taxable income before skipping

No Form 4977 needed

Deadline or filing window

Form 4977 must be filed by the same deadline as the organization’s Form 990, usually the 15th day of the 5th month after the tax year ends. Extensions granted for the 990 also extend the 4977 deadline. Late filing may incur penalties.

  • —Taxable income amount | Multiply by applicable tax rate | Tax due | Verify correct rate for the organization’s tax year

Checklist

What you need before filling it out

1

Taxable income total

Financial statements & Schedule C · Organization’s accounting records

⚠ Often rounded incorrectly✕ High
2

Deductions claimed

Supporting expense receipts · Schedule C or other schedules

⚠ Missing documentation✕ Medium
3

Tax liability calculation

Worksheet in instructions · Tax tables or software output

⚠ Formula errors✕ High
4

Payments/credits

Bank statements or prior year returns · Payment vouchers

⚠ Unapplied payments✕ Low

Before you submit

  1. 1Use the 2024 edition of Form 4977
  2. 2All taxable income amounts match Schedule C
  3. 3Deductions are supported by receipts
  4. 4Tax rate applied matches the year’s schedule
  5. 5Tax due calculation matches worksheet
  6. 6Signature of an authorized officer is present
  7. 7Date is current
  8. 8Form attached to the 990 or mailed to correct address
  9. 9Copy retained in organization’s records

How to file this form

  1. 1Collect financial statements and Schedule C for the tax year
  2. 2Complete the taxable‑income worksheet in the instructions
  3. 3Enter totals on Form 4977 line by line
  4. 4Calculate tax due using the appropriate rate table
  5. 5Review all entries against source documents
  6. 6Sign and date the form
  7. 7Attach to Form 990 or upload with the e‑file submission

Known limitations

  1. 1Instructions may reference tax rates that change annually; verify the rate for the filing year
  2. 2Form does not accept electronic signatures; a handwritten signature is required
  3. 3Only organizations that file Form 990 are eligible; other exempt entities use different forms
  4. 4The form does not calculate penalties for late payment

Field map

Compact field-by-field guide

6 fields

General Info

2 items

Taxpayer Name and TIN

Full legal name and taxpayer identification number (SSN or EIN).

Requiredtext
Address

Current mailing address.

Requiredtext

Details

2 items

Required Information

Complete all applicable sections of this form according to the official IRS instructions.

Requiredtext
Amount (if applicable)

Enter the relevant dollar amount if this form involves tax calculation.

amount

Certification

1 items

Certification Statement

Read and acknowledge any certifications required by this form.

Requiredcheckbox

Signatures

1 items

Signature

Sign and date. Unsigned forms cannot be processed.

Requiredsignature
This compact map shows typical fields for this form type. The AI Editor gives precise field guidance after you open the PDF.

Almost done reviewing the fields?

Fillable formOpen in Editor->
Current form status
IRS

Form 4977 is currently in its 2024 edition. Verify the edition date on the PDF before use. No filing fee is required.

What changed or needs a fresh check

  • Edition date – verify the form shows 2024 edition
  • Fee – none required for Form 4977
  • Mailing address – use the address in the 2024 instructions
  • Signature line – ensure an authorized officer signs
  • Electronic filing – attach to e‑filed Form 990 if applicable

Form Preview

Form 4977 page 1

Page 1

Form 4977 page 2

Page 2

Open in AI Editor →

Quick Facts

Tax‑exempt organizations that file Form 990 and have taxable income must file Form 4977.
The form captures total taxable income, deductions, tax liability, and any payments or credits related to that income.
File with the organization’s annual Form 990 filing, typically by the due date of the 990 (generally the 15th day of the 5th month after the tax year ends).
Mail the completed form to the IRS address listed in the instructions for the organization’s filing year, or attach it to the electronic 990 submission if e‑filing.
Errors can cause penalties, delay the organization’s tax‑exempt status renewal, or trigger an audit of unrelated business income.
Gather the organization’s financial statements and Schedule C (or Schedule K‑1) for unrelated business income. Complete the taxable‑income worksheet in the instructions, transfer totals to Form 4977, calculate tax due, and sign. Attach to Form 990 or submit electronically. Keep a copy for records.

Downloads

Blank Form 4977↗

Fill Form 4977

AI-powered guidance for every field

Fillable formOpen in Editor->

Free to start / No account required

After you file

  1. 1File a copy of the completed Form 4977 with the organization’s records
  2. 2Reconcile the tax due with the bank to confirm payment
  3. 3Monitor IRS acknowledgment if filed electronically
  4. 4Keep supporting schedules for at least three years
  5. 5Update internal accounting to reflect the taxable income reported
  6. 6Check the next year’s Form 990 for consistency

Sources

  • SRCForm 4977 title and purposeIRS instructions
  • SRCEdition date 2024PDF header
  • SRCNo filing feeinstructions section on fees
  • SRCSignature line requirementform layout
  • SRCMailing addressinstructions page for 2024
  • SRCDeadline tied to Form 990instructions
  • SRCTax rate tablesIRS Publication 598 referenced in instructions
  • SRCSchedule C linkageForm 990 instructions

Common confusion points

Unrelated business income vs. exempt income

Income from activities unrelated{}to the organization’s mission is taxable

→ Review activity purpose

Which schedule to use

Some organizations use Schedule C, others use Schedule K‑1

→ Confirm the correct schedule in the 990 instructions

Tax rate application

Rates differ for corporations vs. trusts

→ Verify entity type before applying rate

Electronic vs. paper filing

Form 4977 cannot be filed alone electronically

→ Attach to e‑filed 990

Signature requirement

Electronic signatures are not accepted

→ Provide a handwritten signature

Workflow map

Related forms and next steps

4 signals

Before

Form 990 – main annual return for tax‑exempt organizations

Current

4977

After

Form 990‑TX – optional detailed tax computation for large organizations

Often used with

Schedule C (Form 990) – reports unrelated business income

⚠ If something goes wrong

  • Form 8868 – request extension for filing Form 990 and attached 4977

Ready to get started?

Upload the form or open it in the AI Editor for intelligent guidance

Fillable formOpen in Editor->

Source transparency

Copyright & Licensing - US Government Forms

Independent guide

BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.

Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Verify current license terms with the source agency before reuse outside this platform.

Never sign without understanding every clause.

BrieflyGo reviews your contracts in plain English — instantly.

Try for free →