IRS records on US nonprofits: exempt status, revocations, Form 990 financials, due dates, stats.
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Whether the IRS automatically revoked an organization's tax exemption (revocation, posting and reinstatement dates), and which of its last three ended accounting years have no return on the IRS public files. Three consecutive missing years revoke the exemption (IRC 6033(j)).
Employer Identification Number, 9 digits, with or without the dash (12-3456789)
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
claude mcp add --transport http nonprofit-lookup https://990.tax/mcp
Whether the IRS automatically revoked an organization's tax exemption (revocation, posting and reinstatement dates), and which of its last three ended accounting years have no return on the IRS public files. Three consecutive missing years revoke the exemption (IRC 6033(j)).
| Argument | Type | Description |
|---|---|---|
| ein* | string | Employer Identification Number, 9 digits, with or without the dash (12-3456789) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"ein"
],
"properties": {
"ein": {
"type": "string",
"description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
}
}
}Plain-English meaning of an IRS Modernized e-File business rule reject code for Forms 990-N, 990-EZ, 990 and 8868 (e.g. R0000-922-01), the IRS rule text, and how to fix it.
| Argument | Type | Description |
|---|---|---|
| code* | string | Reject code, e.g. R0000-922-01 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"code"
],
"properties": {
"code": {
"type": "string",
"maxLength": 20,
"minLength": 5,
"description": "Reject code, e.g. R0000-922-01"
}
}
}Due date of a Form 990-N, 990-EZ, 990 or 990-PF for a fiscal year end and tax year, moved off weekends and legal holidays, the Form 8868 extended due date (none for the 990-N), days remaining, and late-filing consequences. Give the fiscal year end month or an EIN. Tax year = the calendar year the accounting year begins in; default is the latest ended year.
| Argument | Type | Description |
|---|---|---|
| ein | string | Employer Identification Number, 9 digits, with or without the dash (12-3456789) |
| form | string | Default 990-N |
| tax_year | integer | |
| fiscal_year_end_month | integer | Month the accounting year ends, 1-12 (12 = December 31) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"ein": {
"type": "string",
"description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
},
"form": {
"enum": [
"990",
"990-N",
"990-EZ",
"990-PF"
],
"type": "string",
"description": "Default 990-N"
},
"tax_year": {
"type": "integer",
"maximum": 2100,
"minimum": 2000
},
"fiscal_year_end_month": {
"type": "integer",
"maximum": 12,
"minimum": 1,
"description": "Month the accounting year ends, 1-12 (12 = December 31)"
}
}
}One organization's IRS record: exempt status, 501(c) subsection, NTEE category, ruling year, deductibility (Publication 78), fiscal year end, which return it files, last filing, and the latest e-filed financial summary. Optional sections: financials (up to 5 years of revenue, expenses, assets from e-filed Form 990/990-EZ/990-PF), officers (up to 15 officers, directors and key employees with compensation from the latest e-filed return), filing_history (e-Postcards and e-filed returns).
| Argument | Type | Description |
|---|---|---|
| ein* | string | Employer Identification Number, 9 digits, with or without the dash (12-3456789) |
| include | array | Extra sections to return; leave out for the compact profile |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"ein"
],
"properties": {
"ein": {
"type": "string",
"description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
},
"include": {
"type": "array",
"items": {
"enum": [
"financials",
"officers",
"filing_history"
],
"type": "string"
},
"maxItems": 3,
"description": "Extra sections to return; leave out for the compact profile"
}
}
}Counts and totals for US tax-exempt organizations from IRS public data: national, one state, or one NTEE major category (A-Z). Active organizations, 990-N filers, revocations, and revenue, assets, employees and pay from e-filed returns; national adds e-Postcard filers by year, revocations by month and organizations by category.
| Argument | Type | Description |
|---|---|---|
| scope* | string | |
| state | string | With scope "state" |
| ntee_major | string | With scope "ntee": NTEE major group letter, e.g. B (education) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"scope"
],
"properties": {
"scope": {
"enum": [
"national",
"state",
"ntee"
],
"type": "string"
},
"state": {
"type": "string",
"maxLength": 2,
"minLength": 2,
"description": "With scope \"state\""
},
"ntee_major": {
"type": "string",
"maxLength": 1,
"minLength": 1,
"description": "With scope \"ntee\": NTEE major group letter, e.g. B (education)"
}
}
}Ranked lists from e-filed Form 990 returns, national (25) or per state (10): highest-paid executives, largest by revenue, most money raised, richest by net assets, biggest employers.
| Argument | Type | Description |
|---|---|---|
| list* | string | |
| limit | integer | Default 10 |
| state | string | Two-letter US state or territory code, e.g. TX |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"list"
],
"properties": {
"list": {
"enum": [
"highest-paid-nonprofit-executives",
"largest-nonprofits",
"top-fundraising-nonprofits",
"richest-nonprofits",
"biggest-nonprofit-employers"
],
"type": "string"
},
"limit": {
"type": "integer",
"maximum": 25,
"minimum": 1,
"description": "Default 10"
},
"state": {
"type": "string",
"maxLength": 2,
"minLength": 2,
"description": "Two-letter US state or territory code, e.g. TX"
}
}
}Find US tax-exempt organizations by name or EIN in IRS records. Returns up to 10 matches with EIN, city, state, exempt status (active, revoked, reinstated, terminated) and the latest form filed. Use the EIN with the other tools.
| Argument | Type | Description |
|---|---|---|
| limit | integer | Maximum results, 1-10 (default 5) |
| query* | string | Organization name (or part of it) or EIN |
| state | string | Two-letter US state or territory code, e.g. TX |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"maximum": 10,
"minimum": 1,
"description": "Maximum results, 1-10 (default 5)"
},
"query": {
"type": "string",
"maxLength": 100,
"minLength": 1,
"description": "Organization name (or part of it) or EIN"
},
"state": {
"type": "string",
"maxLength": 2,
"minLength": 2,
"description": "Two-letter US state or territory code, e.g. TX"
}
}
}Which annual return applies under the IRS thresholds: 990-N (gross receipts normally $50,000 or less), 990-EZ (under $200,000 and assets under $500,000), 990, 990-PF, or none (churches, group-return members). With an EIN, missing amounts come from the IRS Business Master File. Cites the IRS rule.
| Argument | Type | Description |
|---|---|---|
| ein | string | Employer Identification Number, 9 digits, with or without the dash (12-3456789) |
| is_church | boolean | Church, integrated auxiliary, or convention or association of churches |
| total_assets | number | Total assets at year end, in USD |
| gross_receipts | number | Gross receipts, normally the 3-year average for organizations 3+ years old, in USD |
| is_private_foundation | boolean | |
| is_509a3_supporting_org | boolean | Supporting organization under section 509(a)(3) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"ein": {
"type": "string",
"description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
},
"is_church": {
"type": "boolean",
"description": "Church, integrated auxiliary, or convention or association of churches"
},
"total_assets": {
"type": "number",
"minimum": 0,
"description": "Total assets at year end, in USD"
},
"gross_receipts": {
"type": "number",
"minimum": 0,
"description": "Gross receipts, normally the 3-year average for organizations 3+ years old, in USD"
},
"is_private_foundation": {
"type": "boolean"
},
"is_509a3_supporting_org": {
"type": "boolean",
"description": "Supporting organization under section 509(a)(3)"
}
}
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 3, 2026.