Montessori School St Clair

  • Belleville, IL
  • Tax exemption issued: Feb. 2017
  • EIN: 47-4504901

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Educational Institutions and Related Activities / Primary, Elementary Schools (NTEE)

Donations to this organization are tax deductible.

Details

According to its June 2026 tax filing, this nonprofit:

Operated a school
Organization is a school. Details are reported on Schedule E.

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending June
2026

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$141,931
Expenses
$179,741
Net Income
-$37,810
Net Assets
$36,699
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $141,931
100%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $78,800
43.8%
Professional Fundraising Fees $0
Other Salaries and Wages $37,034
20.6%
Assets/Debt
Total Assets $36,699
Total Liabilities $0
Net Assets $36,699
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Mary Sharkey (Director/age) $78,800 $0 $0
Kenneth Sharkey (Director) $0 $0 $0
Nolan Sharkey (Director) $0 $0 $0

Document Links

990
Filed on Sept. 8, 2026

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$249,087
Expenses
$212,218
Net Income
$36,869
Net Assets
$74,509
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $249,087
100%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $63,000
29.7%
Professional Fundraising Fees $0
Other Salaries and Wages $83,609
39.4%
Assets/Debt
Total Assets $74,509
Total Liabilities $0
Net Assets $74,509
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Mary Sharkey (Director/age) $63,000 $0 $0
Kenneth Sharkey (Director) $0 $0 $0
Nolan Sharkey (Director) $0 $0 $0

Document Links

990
Filed on Oct. 20, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$246,546
Expenses
$222,326
Net Income
$24,220
Net Assets
$37,640
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $246,546
100%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $63,000
28.3%
Professional Fundraising Fees $0
Other Salaries and Wages $84,985
38.2%
Assets/Debt
Total Assets $37,640
Total Liabilities $0
Net Assets $37,640
Other
Operated a school
Compensation
Key Employees and Officers Compensation Related Other
Mary Sharkey (Director/age) $63,000 $0 $0
Kenneth Sharkey (Director) $0 $0 $0
Nolan Sharkey (Director) $0 $0 $0

Document Links

990
Filed on Oct. 30, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$193,752
Expenses
$199,784
Net Income
-$6,032
Net Assets
$13,420
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $193,752
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $13,420
Total Liabilities $0
Net Assets $13,420
Other
Operated a school
Compensation
Key Employees and Officers Compensation Other
Mary Sharkey (Director/age) $63,000 $0
Kenneth Sharkey (Director) $0 $0
Nolan Sharkey (Director) $0 $0

Document Links

990-EZ
Filed on Nov. 13, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$184,361
Expenses
$173,125
Net Income
$11,236
Net Assets
$19,452
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $184,361
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $19,452
Total Liabilities $0
Net Assets $19,452
Other
Operated a school
Compensation
Key Employees and Officers Compensation Other
Mary Sharkey (Director/agent) $53,000 $0
Kenneth Sharkey (Director) $0 $0
Nolan Sharkey (Director) $0 $0

Document Links

990-EZ
Filed on Oct. 18, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$162,442
Expenses
$157,339
Net Income
$5,103
Net Assets
$8,216
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $119,118
73.3%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $43,324
26.7%
Assets/Debt
Total Assets $8,216
Total Liabilities $0
Net Assets $8,216
Other
Operated a school
Compensation
Key Employees and Officers Compensation Other
Mary Sharkey (Director/agent) $58,800 $0
Kenneth Sharkey (Director) $0 $0
Nolan Sharkey (Director) $0 $0

Document Links

990-EZ
Filed on Aug. 3, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$110,716
Expenses
$126,593
Net Income
-$15,877
Net Assets
$3,113
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $110,716
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $25,135
Total Liabilities $22,022
Net Assets $3,113
Other
Operated a school
Compensation
Key Employees and Officers Compensation Other
Mary Sharkey (Director/agent) $42,400 $0
Kenneth Sharkey (Director) $0 $0
Nolan Sharkey (Director) $0 $0

Document Links

990-EZ
Filed on Sept. 1, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$155,790
Expenses
$166,325
Net Income
-$10,535
Net Assets
$18,990
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $155,790
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $18,990
Total Liabilities $0
Net Assets $18,990

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$164,947
Expenses
$158,959
Net Income
$5,988
Net Assets
$29,525
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $164,947
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $29,525
Total Liabilities $0
Net Assets $29,525

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$158,136
Expenses
$144,984
Net Income
$13,152
Net Assets
$23,537
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $158,136
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $23,537
Total Liabilities $0
Net Assets $23,537

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$82,453
Expenses
$72,068
Net Income
$10,385
Net Assets
$10,385
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $82,453
100%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $10,385
Total Liabilities $0
Net Assets $10,385

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Most organizations that have been recognized as tax exempt by the IRS have to file the Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file the Form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes Employer Identification Numbers and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

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