Nonprofit · EIN 51-0180176
MOUNT HOREB AREA HISTORICAL SOCIETY INC
Tax-exempt · MOUNT HOREB, WI 53572
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $321,769 | $333,502 | -$11,733 | $2,949,347 | $22,056 | $2,927,291 |
| September 30, 2024 | 990 | $270,746 | $347,104 | -$76,358 | $2,413,796 | $24,468 | $2,389,328 |
| September 30, 2023 | 990 | $203,808 | $322,100 | -$118,292 | $2,441,062 | $4,457 | $2,436,605 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $265,769
- Membership dues
- $40,585
- Program service revenue
- $13,056
- Investment income
- $10,089
- Net rental income
- $17,189
- Net income from sales of inventory
- $15,626
- Other revenue
- $32,855
Expenses
- Grants and similar amounts paid
- $0
- Other salaries and wages
- $142,274
- Salaries, compensation and benefits (total)
- $156,361
- Professional fundraising fees
- $0
- Accounting fees
- $9,446
- Occupancy
- $23,442
- Travel
- $1,035
- Depreciation
- $58,672
- Program services (functional)
- $300,306
- Management and general (functional)
- $31,334
- Fundraising (functional)
- $1,862
Balance sheet and other
- Total assets, start of year
- $2,413,796
- Total assets, end of year
- $2,949,347
- Total liabilities, end of year
- $22,056
- Net assets, end of year
- $2,927,291
- Land, buildings and equipment
- $2,545,190
- Publicly traded securities
- $167,262
- Net assets without donor restrictions
- $2,927,291
- Gross receipts
- $334,421
- Employees
- 7
- Volunteers
- 15
- Year formed
- 1975
- State of legal domicile
- WI
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 for the year ended September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KARLA OTT | PRESIDENT Trustee or director, Officer | 5 | $0 |
| LORI MIDTHUN | VICE PRESIDE Trustee or director, Officer | 5 | $0 |
| ROGER DETERDING | TREASURER Trustee or director, Officer | 5 | $0 |
| LISA GRINDE | SECRETARY Trustee or director, Officer | 5 | $0 |
| TROY ARNESON | DIRECTOR Trustee or director | 2 | $0 |
| JOHN BUECHNER | DIRECTOR Trustee or director | 2 | $0 |
| JOEL SKALET | DIRECTOR Trustee or director | 2 | $0 |
| BRITTA JOHNSON | DIRECTOR Trustee or director | 2 | $0 |
990 for the year ended September 30, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KARLA OTT | PRESIDENT Trustee or director, Officer | 5 | $0 |
| DAVID SCHMIDT | VICE PRESIDE Trustee or director, Officer | 5 | $0 |
| LORI MIDTHUN | SECRETARY Trustee or director, Officer | 5 | $0 |
| ROGER DETERDING | TREASURER Trustee or director, Officer | 5 | $0 |
| JOHN BUECHNER | DIRECTOR Trustee or director | 2 | $0 |
| LISA GRINDE | DIRECTOR Trustee or director | 2 | $0 |
| PETER RIPHAHN | DIRECTOR Trustee or director | 2 | $0 |
| JOEL SKALET | DIRECTOR Trustee or director | 2 | $0 |
990 for the year ended September 30, 2023: 9 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KARLA OTT | PRESIDENT Trustee or director, Officer | 16 | $0 |
| DAVID SCHMIDT | VICE PRESIDE Trustee or director, Officer | 4 | $0 |
| LORI MIDTHUN | SECRETARY Trustee or director, Officer | 2 | $0 |
| ROGER DETERDING | TREASURER Trustee or director, Officer | 6 | $0 |
| JOHN BUECHNER | DIRECTOR Trustee or director | 2 | $0 |
| ROWAN CHILDS | DIRECTOR Trustee or director | 2 | $0 |
| LISA GRINDE | DIRECTOR Trustee or director | 2 | $0 |
| PETER RIPHAHN | DIRECTOR Trustee or director | 2 | $0 |
| JOEL SKALET | DIRECTOR Trustee or director | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 100 S 2ND ST, MOUNT HOREB, WI 53572-2106
- Principal officer (990 for 2024)
- ROGER DETERDING, 1809 SPRINGDALE ST 201, MOUNT HOREB, WI 53572
- Signed the 990
- ROGER DETERDING, TREASURER
- Phone
- (608) 437-6486
- Website
- WWW.MTHOREBHISTORY.ORG
- Return prepared by
- THOUSAND CPA LLC
Mission
THE MOUNT HOREB AREA HISTORICAL SOCIETY COLLECTS AND PRESERVES LOCAL ARTIFACTS AND ARCHIVAL, AND PROVIDES EDUCATION ON LOCAL HISTORY.
Program accomplishments
- THE MOUNT HOREB AREA HISTORICAL SOCIETY CREATES, PROMOTES, AND PROVIDES ONGOING SUPPORT FOR MUSEUM EXHIBITS. THE MUSEUM HOSTED APPROXIMATELY 3,600 VISITORS IN 2015. NEW EXHIBITS INCLUDED "STORIES IN STITCHES: QUILTS OF SOUTHWESTERN DANE COUNTY- AND "ETHNICITY AND THE CIVIL WAR". A NEW EXHIBIT TITLED "NATURAL WONDERS AND HUMAN INTERACTION" OPENED IN MAY 2013 AND REPLACES THE CURRENT QUILT EXHIBIT. IN ADDITION, THE SOCIETY OPERATES A SMALL GIFT SHOP. EDUCATIONAL PROGRAMS FOR CHILDREN ARE A GROWING SERVICE OF THE SOCIETY.Expenses $293,961 · revenue $11,893
- THE MOUNT HOREB AREA HISTORICAL SOCIETY COLLECTS AND PRESERVES LOCAL HISTORICAL ARTIFACTS AND ARCHIVE MATERIAL, MAINTAINS A DATABSE OF ITEMS IN ITS COLLECTIONS, AND DISSEMINATES INFORMATION TO THE PUBLIC VIA ASSISTANCE WITH RESEARCH AND THROUGH PROGRAMS AND THE PUBLISHING OF BOOKS AND ARTICLES. THE SOCIETY RECEIVES APPROXIMATELY FIVE REQUESTS PER WEEK FOR INFORMATION RELATED TO ITEMS IN ITS ARCHIVE.Expenses $114 · revenue $1,163
- THE MOUNT HOREB AREA HISTORICAL SOCIETY PUBLISHES A NEWSLETTER THREE OR FOUR TIMES PER YEAR. THE NEWSLETTER IS DISTRIBUTED TO APPROXIMATELY 225 MEMBERS. ADDITIONAL COPIES OF THE NEWSLETTER ARE AVAILABLE TO VISITORS TO THE MUSEUM, THE COMMUNITY, AND OTHER POTENTIAL MEMBERS.Expenses $6,231
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 September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990 on file |
IRS record
- EIN
- 51-0180176
- 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
- 1977
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $2,949,347
- Income (IRS master file)
- $334,421
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $321,769 | $333,502 | $2,949,347 | XML |
| 990 | September 2024 | $270,746 | $347,104 | $2,413,796 | XML |
| 990 | September 2023 | $203,808 | $322,100 | $2,441,062 | XML |
| 990 | September 2022 | $200,427 | $283,343 | $2,555,372 | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
| 990 | September 2019 | – | – | – | IRS |
| 990 | September 2018 | – | – | – | 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 51-0180176).
Questions about MOUNT HOREB AREA HISTORICAL SOCIETY INC
- What is the EIN of MOUNT HOREB AREA HISTORICAL SOCIETY INC?
- The employer identification number (EIN) of MOUNT HOREB AREA HISTORICAL SOCIETY INC is 51-0180176.
- Is MOUNT HOREB AREA HISTORICAL SOCIETY INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1977.
- Are donations to MOUNT HOREB AREA HISTORICAL SOCIETY INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MOUNT HOREB AREA HISTORICAL SOCIETY INC 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 HOREB AREA HISTORICAL SOCIETY INC due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MOUNT HOREB AREA HISTORICAL SOCIETY INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of MOUNT HOREB AREA HISTORICAL SOCIETY INC?
- The 990 for the year ended September 30, 2025 names ROGER DETERDING.
- Who are the officers and directors of MOUNT HOREB AREA HISTORICAL SOCIETY INC?
- The 990 for the year ended September 30, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does MOUNT HOREB AREA HISTORICAL SOCIETY INC have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $321,769, expenses of $333,502 and total assets of $2,949,347 at year end.
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