Quick answer: choose the IRS dataset before interpreting the result
The IRS Tax Exempt Organization Search tool can show federal tax-exempt status and related filings, but it is not one single database. Choose the dataset that matches your question: Pub. 78 for deductible-contribution eligibility, Form 990 series returns for annual filing details, Form 990-N for eligible small organizations, determination letters for IRS rulings, or the automatic revocation list for loss of exemption after filing failures.
Search by EIN when you have it. If you search by name, use the legal name and confirm location, because public-facing names and IRS records may differ.
Match the question to the dataset
| Question | IRS dataset to start with |
|---|---|
| Is this organization listed as eligible for deductible contributions? | Pub. 78 data |
| What annual information return did it file? | Form 990 series returns |
| Did an eligible small organization submit an e-Postcard? | Form 990-N data |
| Did the IRS issue a determination letter available in TEOS? | Determination letters |
| Does it appear on the automatic revocation list? | Auto-revocation data |
| What organizations have federal exemption records in bulk? | Exempt Organizations Business Master File extract |
Selecting the wrong dataset is a common reason a real organization appears to be missing.
Start with the EIN, not a familiar name
An Employer Identification Number is a strong search key because organization names can be ambiguous. The IRS search accepts the EIN with or without its dash. Still, an EIN match should be compared with the legal name and address rather than copied from an unverified message or invoice.
If the EIN is unknown:
- Search the complete legal name in quotation marks where supported.
- Try a distinctive part of the name.
- Remove generic words such as "the" or "foundation."
- Sort or filter using city, state, or ZIP.
- Check whether the organization uses a DBA or is covered by a parent or central organization.
- Confirm any candidate result with another official record or the organization's own documents.
The FEIN lookup guide explains why publicly finding an EIN is not the same as validating an organization.
Legal name, DBA, and group exemptions
A charity may advertise under a program name that differs from its IRS legal name. Some IRS datasets do not display doing-business-as names. A local affiliate may also operate under a group exemption associated with a central organization.
This creates three practical checks:
- Ask what legal entity receives the donation or signs the contract.
- Compare the EIN on the receipt, solicitation, or official website with IRS data.
- Determine whether the organization is a subordinate in a group rather than assuming it has an independent determination letter.
For state-level entity records, use a business entity search. State formation and federal exemption are separate statuses.
Understand Pub. 78 data
Pub. 78 data is used to check whether an organization is listed as eligible to receive tax-deductible charitable contributions. Read the organization name, EIN, location, deductibility code, and any related limitations shown by the IRS.
Do not turn a name-only match into a conclusion. Similarly named organizations can operate in different states, and a chapter may not use the same EIN as a national brand.
Tax deductibility can depend on the recipient, payment type, and circumstances. This guide does not provide tax advice; retain receipts and consult current IRS guidance or a qualified tax professional for material decisions.
Read Form 990 series records as dated filings
Form 990 records can provide substantial information about an organization's activities, finances, leadership, governance responses, grants, related entities, and compensation. The exact content depends on the form and schedules filed.
| Filing | General role | Important limit |
|---|---|---|
| Form 990 | Broad annual information return | Reporting period may be older than filing date |
| Form 990-EZ | Shorter return for eligible organizations | Less detail than a full Form 990 |
| Form 990-PF | Return for private foundations | Foundation rules and fields differ |
| Form 990-N | Electronic notice for eligible small organizations | Very limited information |
| Form 990-T | Certain unrelated business income reporting | Public availability and content vary |
Check the tax period, not only the posting date. An organization's fiscal year may not match the calendar year.
A practical Form 990 reading sequence
Instead of jumping to one number, read in this order:
- Confirm the EIN, legal name, tax period, and form type.
- Review the mission and program-service descriptions.
- Compare revenue, expenses, assets, and liabilities across available years.
- Read compensation and governance sections in context.
- Open relevant schedules for grants, related organizations, fundraising, transactions, and supplemental explanations.
- Note accounting changes, amended returns, and unusual one-time items.
- Compare claims with the organization's current materials and applicable state records.
A ratio alone rarely explains program quality. Different missions have different operating models, reserves, capital needs, and pass-through activity.
Determination letters and what they establish
A determination letter generally records an IRS conclusion about exemption under the facts and representations considered at that time. It is useful evidence of a federal tax determination, but it is not a perpetual endorsement of every later activity.
Check the letter date, organization identity, classification, and any conditions. Then compare current status and filing history. A scanned letter and current Pub. 78 listing answer related but different questions.
Automatic revocation records
Federal law can automatically revoke an organization's exemption after required annual returns or notices are not filed for three consecutive years. The auto-revocation dataset identifies affected organizations and dates.
Read it carefully:
- Confirm EIN and legal name.
- Note the revocation date.
- Check for later reinstatement or a new determination.
- Do not assume current status from an old revocation entry alone.
- Distinguish revocation from state dissolution or loss of a state solicitation registration.
Why a filing may be missing or delayed
A no-result search can reflect:
- The wrong dataset was selected
- A legal name differs from the public name
- The EIN was entered incorrectly
- The organization files under a group exemption
- The organization uses Form 990-N rather than a full return
- A filing is not yet posted
- The tax period differs from the expected year
- The organization is not required to file that form
- The record is in an older or separate data format
Treat absence as a research problem, not proof of misconduct.
Federal status vs state records
IRS status does not establish every state requirement. Depending on the question, also check:
- Secretary of state entity status
- State charity registration or solicitation regulator
- Professional or facility licenses
- Local permits
- Court or enforcement records
- The organization's current governance and contact information
The professional license lookup is the better route for regulated credentials. EDGAR may contain filings for some nonprofit-related securities or debt, but most charities are not SEC reporting companies; see the SEC EDGAR search guide for that separate system.
Appropriate and inappropriate conclusions
An IRS record may support a statement such as: "The organization appears in Pub. 78 under this EIN as of the searched data." It does not support: "The organization is effective, ethical, financially healthy, or endorsed by the government."
Do not use casual lookup information for employment, housing, credit, insurance, or other regulated eligibility decisions. Lookup Plainly is an informational publisher, not a Consumer Reporting Agency.
Tax-exempt organization checklist
- Correct IRS dataset selected
- EIN confirmed from a reliable source
- Legal name and location matched
- DBA or group exemption considered
- Tax period and filing date distinguished
- Form and schedules reviewed together
- Amendments or later filings checked
- Pub. 78, determination, and revocation data not conflated
- State registration and licenses checked when relevant
- Missing records not treated as proof of wrongdoing
Bottom line
IRS TEOS is not one yes-or-no charity database. Choose the dataset for the question, identify the organization by EIN and legal name, read filings as dated records, and cross-check state systems when necessary. The result can establish specific tax and filing facts without becoming a rating of the organization itself.