Form 990 (2021) Tax Year Checklist for Exempt Organizations
2021 Year-Specific Context
The 2021 Form 990 reflects the ARPA (American Rescue Plan Act, signed on March 12, 2021) charitable deduction enhancements, allowing donors to claim 100% of their adjusted gross income for individual cash contributions, as well as enhanced employee retention credit provisions. Section 501 (c) (3) organizations filing Form 990 must now complete all columns (including functional expense allocation) and the mandatory Schedule O for governance disclosures, reflecting the IRS's emphasis on transparency and compliance documentation over the past few years.
Year-Specific Programs Applying to This Form
ARPA charitable deduction provisions for 2021 allow qualifying donors to deduct up to 100% of their adjusted gross income for cash contributions. Form 990 reporting does not directly reflect donor deductions; however, organizations must track contribution amounts in Part VIII for revenue reporting purposes. The Employee Retention Credit, expanded under ARPA, now covers the entire 2021 tax year. Although this exception applies to payroll tax forms rather than Form 990 directly, grant recipients may reference ARPA funding sources in the narrative explanations of Schedule O.
Form-Specific Limitations (Critical Restrictions)
Form 990 (long form) is required for organizations with gross receipts of $200,000 or more OR total assets of $500,000 or more at the end of the tax year. Private foundations and nonexempt charitable trusts treated as private foundations file Form 990-PF, not Form 990; organizations with gross receipts under $50,000 may file Form 990-N (e-postcard) instead; organizations with gross receipts under $200,000 AND assets under $500,000 may elect the Form 990-EZ short form. Sponsoring organizations of donor-advised funds must file Form 990 (not Form 990-EZ). Section 509(a)(3) supporting organizations must file Form 990 or 990-EZ regardless of gross receipts. Foreign organizations must report worldwide gross receipts in U.S. dollars.
Ten-Step Compliance Checklist for 2021 Form 990
Step 1: Verify Filing Requirement and Form Selection
Confirm the organization has gross receipts of $200,000 or more OR total assets of $500,000 or more at the end of the 2021 tax year (required threshold for long Form 990). If the organization has receipts under $200,000 and assets under $500,000, verify whether it qualifies for Form 990-EZ (short form) or Form 990-N (e-postcard, available only for organizations with receipts under $50,000). Determine whether the organization is a private foundation or a section 509(a)(3) supporting organization (both have mandatory filing requirements, regardless of size).
Step 2: Gather Core Financial Documents for Parts VIII, IX, X
Compile all 2021 Form W-2s (employee compensation), Forms 1099-MISC and 1099-NEC (nonemployee compensation and independent contractor payments), bank statements showing revenue sources (Part VIII, line 1 contributions; line 7 investment income), expense ledgers (Part IX functional expenses: program services, management/general, fundraising), and balance sheet accounts (Part X assets and liabilities at beginning and end of 2021).
Step 3: Complete Part IV, “Checklist of Required Schedules,” Accurately
Answer yes/no questions on Part IV (lines 1–37) that determine mandatory attachments. Answer “Yes” to line 6 if the organization maintained donor-advised funds; line 11a if reporting land/buildings/equipment; and line 12a if obtained independent audited financial statements. For each “Yes” answer, Schedule D or other specified schedule becomes a mandatory attachment. All organizations must answer Part IV to determine filing scope.
Step 4: Attach Schedule O for All Part VI, Line 11b and Line 19 Disclosures
All 2021 Form 990 filers must complete and attach Schedule O (Supplemental Information). Use Schedule O to provide narrative explanations for Part VI, line 11b (Form 990 review process) and line 19 (governance policies). Schedule O is mandatory; no exceptions. Do not use Schedule O to supplement responses on other schedules (use each schedule’s own supplemental section instead).
Step 5: List Officers, Directors, Trustees, Key Employees on Part VII
Report all current directors/trustees (regardless of compensation), top management officials, top financial officials, up to 20 current key employees with compensation exceeding $150,000 from the organization and related organizations, and the five highest compensated employees with compensation exceeding $100,000 who are not officers/directors/trustees/key employees. Former individuals are listed only if they meet specific 2021 threshold conditions and were reported in a prior year. Compensation must include both reportable amounts from Form 1099-MISC, Box 1, and Form 1099-NEC.
Step 6: Complete Parts VIII–X Financial Statements with Functional Expense Allocation
Part VIII (Revenue): Report 2021 contributions, government grants, investment income, and unrelated business income in separate columns. Part IX (Functional Expenses): Section 501(c)(3) and 501(c)(4) organizations must report all expenses in four columns—(A) program services, (B) management and general, (C) fundraising, and (D) revenue excluded from tax—for lines 1–25. Part X (Balance Sheet): Report cash, investments, receivables, land/buildings/equipment, and liabilities at the beginning of the year (column A) and end of 2021 (column B). Totals in Part X columns (A) and (B) must reconcile to Summary Part I, lines 20–22.
Step 7: Attach Schedule D (Supplemental Financial Statements) for All Part IV “Yes” Answers
Suppose Part IV lines 6, 7, 8, 9, 10, 11a, 11b, 11c, 11d, 11e, 11f, 12a, or 12b are answered “Yes”; complete the corresponding Schedule D parts. Part VI applies if the organization reports land/buildings/equipment (line 10a of Part X); column (d) book value totals must equal Form 990 Part X line 10c. Part VII applies if investments in other securities are 5% or more of total assets (Part X line 16); totals must equal Part X line 12. Part VIII applies to program-related investments, and Part IX to other assets that exceed the 5% threshold.
Step 8: Include All Mandatory Schedules Based on Organization Type and Activities
Schedule A (Form 990) is mandatory for all section 501(c)(3) organizations and section 4947(a)(1) nonexempt charitable trusts; it completes public support test calculations. Schedule B (Contributors) is filed with the IRS; Schedule B is available for public inspection for section 527 organizations filing Form 990 or 990-EZ. For other organizations filing Form 990 or 990-EZ, certain parts of Schedule B may be open to public inspection, depending on the organization's type and circumstances. Schedule C (Political Campaign and Lobbying) is required if an organization engages in political activities or lobbying at or above the threshold amounts. Schedule E (Schools) is necessary for educational institutions. Schedule F (Activities Outside U.S.) is required if aggregate foreign activities exceeded $10,000 or foreign investments exceeded $100,000.
Step 9: Sign, Date, and Verify Form Assembly per 2021 IRS Instructions
The officer with final responsibility for the organization (typically the top management official, such as the CEO/executive director) and the top financial official (usually the treasurer/CFO) must sign and date Form 990 Part II, Signature Block, under penalty of perjury, attesting that the return is accurate, correct, and complete.
Authorized preparer (if applicable) signs with PTIN and firm information. Attach all required schedules in alphabetical order (Schedules A through R) after the core form. Refer to IRS Form 990 Where to File (2021) instructions for the mailing address specific to the organization type and filing location. Do not include social security numbers or personal identifying information on publicly disclosed forms.
Step 10: Verify Filing Deadline and Extension Procedures for 2021 Tax Year
The Form 990 for calendar year 2021 is due by May 15, 2022 (the 15th day of the 5th month after the year-end). Because May 15, 2022, falls on a Sunday, the actual due date is May 17, 2022. To request an automatic 6-month extension to November 15, 2022, file Form 8868 (Application for Automatic Extension of Time to File) by May 17, 2022; extension cannot extend Form 990-N e-postcard submissions (no extension available for 990-N).
If the organization changes accounting period in 2021, file short-period Form 990 and may be required to file Form 1128 (Application to Adopt, Change, or Retain a Tax Year) with a short-period return if the organization had a Form 990-series filing requirement at any time in the prior 10-year period.
2021 Form 990 Significant Section Changes
Part VII—Compensation Reporting: Officer and Key Employee Order Revision
Prior year instruction: Individuals may be listed in various orders depending on the organization's structure and reporting preferences.
Current year (2021) instruction: Officers, directors, trustees, key employees, and the highest-compensated employees must now be listed in a specific order—beginning with directors/trustees (who typically receive no compensation), then officers, key employees, and the highest-compensated employees, ordered from highest to lowest compensation.
Change type: Clarified and redesigned for consistency.
Part VI—Governance and Form 990 Review Requirement
Prior year instruction: Organizations answered whether Form 990 was reviewed before filing; a limited supplemental explanation was required.
Current year (2021) instruction: All Form 990 filers must answer Part VI, line 11b (whether the board reviewed the Form 990 before filing) and describe the review process on Schedule O; line 19 requires disclosure of whistleblower policy. Both items require a Schedule O narrative explanation as a mandatory attachment.
Change type: Updated and expanded disclosure requirement.
Critical Assertions About 2021 Form 990 Processing
The instructions do not state that the IRS will reject returns missing schedules; however, the 2021 instructions clearly require that if Part IV, line 1, is answered “Yes,” the corresponding schedule must be attached. Organizations must ensure Schedule O is connected regardless of whether schedules were triggered, as it is mandatory for all Form 990 filers. Failure to attach the required schedules may result in an examination or a request for an amended return. Still, the instructions do not specify enforcement timelines or consequences—only that schedules “must” be completed and attached.
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This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
