Nonprofit Tax and Form 990
Exemption, public support, unrelated business income, and excise taxes for exempt organizations.
Key sections and concepts
- Section 501(c)(3)
Charitable organizations
Provides exemption for charitable, religious, and educational bodies.
- Section 501(c)(4)
Social welfare organizations
Provides exemption for social welfare organizations.
- Section 509
Private foundation defined
Separates public charities from private foundations.
- Section 170
Charitable contributions
Sets the deduction rules for charitable gifts.
- Section 511
Unrelated business income tax
Imposes tax on the unrelated business income of exempt organizations.
- Section 512
Unrelated business taxable income
Defines UBTI and its modifications.
- Section 513
Unrelated trade or business
Defines an unrelated trade or business.
- Section 514
Debt-financed income
Treats certain debt-financed income as unrelated.
- Section 4940
Foundation investment income tax
Imposes excise tax on net investment income of private foundations.
- Section 4941
Self-dealing
Imposes excise taxes on self-dealing with private foundations.
- Section 4942
Minimum distributions
Requires private foundations to distribute a minimum amount.
- Section 4958
Excess benefit transactions
Imposes excise taxes on excess benefits to disqualified persons.
- Section 4960
Excess executive compensation
Imposes an excise tax on certain exempt organization compensation.
- Section 6033
Annual exempt organization returns
Requires annual information returns.
- Section 6104
Public inspection
Makes returns and exemption applications publicly available.
Popular search topics
- Form 990 instructions
- Form 990-EZ vs Form 990
- Form 990-N e-postcard
- Form 990-PF
- Form 990-T
- Schedule A public support test
- Schedule B
- Schedule O
- Form 1023
- Form 1023-EZ
- UBIT
- nonprofit tax training
- functional expenses
- public charity vs private foundation
- nonprofit accounting
For general education only, not tax advice. Tax law changes often, so confirm current rules and amounts with primary sources.
Articles on this topic
Basics
Form 990, 990-EZ, 990-N, or 990-PF: Which One to File
How to choose the correct Form 990 series return, with size thresholds, due dates, and the risk of revocation.
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Basics
Public Charity vs. Private Foundation
How Section 509 separates public charities from private foundations, and why the public support test matters.
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Basics
UBIT: Unrelated Business Income Tax for Nonprofits
When a nonprofit's income is taxed as unrelated business income, the main exclusions, and how Form 990-T works.
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