Nonprofit · EIN 23-7015806
MOUNT PROSPECT HISTORICAL SOCIETY
Tax-exempt · MT PROSPECT, IL 60056
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $119,891 | $111,021 | $8,870 | $424,928 | $1,889 | $423,039 |
| December 31, 2024 | 990-EZ | $114,722 | $126,310 | -$11,588 | $416,418 | $2,249 | $414,169 |
| December 31, 2023 | 990-EZ | $105,962 | $94,999 | $10,963 | $428,277 | $2,520 | $425,757 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $71,530
- Membership dues
- $3,841
- Program service revenue
- $20,320
- Investment income
- $7
- Net income from fundraising events
- $22,633
- Other revenue
- $1,560
Expenses
- Compensation of officers, directors and key employees
- $34,415
- Salaries, compensation and benefits (total)
- $70,150
- Professional fees and payments to contractors
- $4,725
- Occupancy
- $13,689
- Printing, publications and postage
- $232
- Other expenses
- $22,225
Balance sheet and other
- Total assets, start of year
- $416,418
- Total assets, end of year
- $424,928
- Total liabilities, end of year
- $1,889
- Net assets, end of year
- $423,039
- Cash, savings and investments
- $176,137
- Land and buildings
- $242,267
- Gross receipts
- $119,891
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| EMILY DATTILO | Director | 30 | $34,415 |
| ARLENE JURACEK | Treasurer | 4 | $0 |
| JEAN MURPHY | President | 10 | $0 |
| SHARON ANDERSON | Vice President | 4 | $0 |
| KRISTIN REINGER | Secretary | 4 | $0 |
990-EZ for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| EMILY DATTILO | DIRECTOR | 30 | $33,059 |
| FRANK CORRY | TREASURER | 7 | $0 |
| JEAN MURPHY | PRESIDENT | 5 | $0 |
| SHARON ANDERSON | VICE PRESIDENT | 5 | $0 |
| KRISTIN REINGER | SECRETARY | 5 | $0 |
990-EZ for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| EMILY DATTILO | DIRECTOR | 30 | $31,499 |
| FRANK CORRY | PRESIDENT & TREASURER | 7 | $0 |
| JEAN MURPHY | PRESIDENT-ELECT | 5 | $0 |
| MARILYN GENTHER | VICE PRESIDENT | 5 | $0 |
| SHARON ANDERSON | SECRETARY | 5 | $0 |
| KAREN AGORANOS | ASSISTANT TREASURER | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 101 S MAPLE ST, MT PROSPECT, IL 60056-3229
- Signed the 990-EZ
- SHARON ANDERSON, Vice President
- Phone
- (847) 392-9006
- Website
- MTPHIST.ORG
- Return prepared by
- MK Group CPAs & Consultants LLC
Mission
HISTORICAL PRESERVATION
Program accomplishments
- THE SOCIETY'S MISSION IS TO DISCOVER, PRESERVE AND DISEMINATE KNOWLEDGE ABOUT THE HISTORY OF MOUNT PROSPECT, ILLINOIS AND THE SURROUNDING AREA.
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 23-7015806
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1969
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $424,928
- Income (IRS master file)
- $119,891
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $119,891 | $111,021 | $424,928 | XML |
| 990-EZ | December 2024 | $114,722 | $126,310 | $416,418 | XML |
| 990-EZ | December 2023 | $105,962 | $94,999 | $428,277 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 23-7015806).
Questions about MOUNT PROSPECT HISTORICAL SOCIETY
- What is the EIN of MOUNT PROSPECT HISTORICAL SOCIETY?
- The employer identification number (EIN) of MOUNT PROSPECT HISTORICAL SOCIETY is 23-7015806.
- Is MOUNT PROSPECT HISTORICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1969.
- Are donations to MOUNT PROSPECT HISTORICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MOUNT PROSPECT HISTORICAL SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of MOUNT PROSPECT HISTORICAL SOCIETY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MOUNT PROSPECT HISTORICAL SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who are the officers and directors of MOUNT PROSPECT HISTORICAL SOCIETY?
- The 990-EZ for the year ended December 31, 2025 lists 5 people; 1 received compensation from the organization, the highest $34,415 (EMILY DATTILO, Director).
- How much revenue does MOUNT PROSPECT HISTORICAL SOCIETY have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $119,891, expenses of $111,021 and total assets of $424,928 at year end.
Other nonprofits in MT PROSPECT
- NATIONAL ASSOCIATION OF BOARDS OF PHARMACY EIN 36-1520565 · last filed 990 for 2025
- SOCIETY OF CRITICAL CARE MEDICINE EIN 23-7104387 · last filed 990 for 2025
- NORTHWEST COMPASS INC EIN 36-3382832 · last filed 990 for 2025
- NORTHWEST CHARGERS HOCKEY ASSOC EIN 36-3225829 · last filed 990 for 2025
- PARKVIEW MONTESSORI SCHOOL INC EIN 36-2875726 · last filed 990 for 2024
- ILLINOIS FIRE SAFETY ALLIANCE EIN 36-3647745 · last filed 990 for 2025
- NATIONAL ASSOCIATION OF BOARDS OF PHARMACY FOUNDATION INC EIN 36-2677921 · last filed 990 for 2025
- ST MARK PRESCHOOL & ENRICHMENT CENTER FOUNDATION EIN 47-1565407 · last filed 990 for 2025