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Nonprofit · EIN 83-3710153

SONNENBERG SCHOOL

Tax-exempt · RACINE, WI 53403

Financials

$2.1M$2.1M2022$2.7M$2.4M2023$3.1M$2.4M2024
Revenue Expenses · by fiscal year end
Financials of SONNENBERG SCHOOL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$3,067,223$2,427,861$639,362$1,546,544$351,765$1,194,779
June 30, 2024990$2,742,177$2,383,692$358,485$760,832$205,415$555,417
June 30, 2023990$2,105,856$2,087,609$18,247$589,753$392,821$196,932
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$307,230
Program service revenue
$2,736,753
Investment income
$20,843
Other revenue
$2,397

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$124,554
Other salaries and wages
$1,555,900
Salaries, compensation and benefits (total)
$1,980,634
Professional fundraising fees
$0
Occupancy
$70,602
Depreciation
$38,895
Program services (functional)
$1,975,280
Management and general (functional)
$420,381
Fundraising (functional)
$32,200

Balance sheet and other

Total assets, start of year
$760,832
Total assets, end of year
$1,546,544
Total liabilities, end of year
$351,765
Net assets, end of year
$1,194,779
Land, buildings and equipment
$863,448
Net assets without donor restrictions
$1,194,779
Gross receipts
$3,067,223
Employees
53
Volunteers
5
Year formed
2019
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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
AMELIA FAHNRICHEXECUTIVE DIRECTOR
Officer
40$101,356$4,404
CHRIS PLANTETREASURER
Trustee or director, Officer
1$4,000$0
JEFFERY WINDENSECRETARY
Trustee or director, Officer
1$4,000$0
NICOLE ELLISHMEMBER
Trustee or director
1$4,000$0
FARRAH SONNENBERGPRESIDENT
Trustee or director, Officer
5$0$0
JASON SONNENBERGVICE PRESIDENT
Trustee or director, Officer
2$0$0
990 for the year ended June 30, 2024: 6 people
NameTitleHours / weekCompensationOther / benefits
AMEILA FAHNRICHEXECUTIVE DIRECTOR
Officer
40$110,000$3,150
FARRAH SONNENBERGPRESIDENT
Trustee or director, Officer
20$0$0
JASON SONNENBERGVICE PRESIDENT
Trustee or director, Officer
5$0$0
CHRIS PLANTETREASURER
Trustee or director, Officer
1$0$0
JEFF WINDENSECRETARY
Trustee or director, Officer
1$0$0
NICOLE ELLISHMEMBER
Trustee or director
1$0$0
990 for the year ended June 30, 2023: 7 people
NameTitleHours / weekCompensationOther / benefits
HEATHER WENTHOLD-BARTSCHEXEC. DIRECTOR/PRINCIPAL (END 5/18/23)
Officer
40$111,000$0
AMELIA FAHNRICHEXECUTIVE DIRECTOR/PRINCIPAL (BEGIN 5/19/23)
Officer
40$78,519$5,956
FARRAH SONNENBERGPRESIDENT
Trustee or director, Officer
0.25$0$0
JASON SONNENBERGVICE PRESIDENT
Trustee or director, Officer
0.25$0$0
JEFF WINDENSECRETARY
Trustee or director, Officer
0.25$0$0
LAURA NGMEMBER
Trustee or director
0.25$0$0
GARY MEADERMEMBER
Trustee or director
0.25$0$0

Address and contacts

Address (IRS master file)
2015 FRANKLIN ST, RACINE, WI 53403-2634
In care of
% AMELIA FAHNRICH
Mailing address (990-N for 2018)
9605 Spring Street, Mount Pleasant WI 53406
Principal officer (990 for 2024)
AMELIA FAHNRICH, 2015 FRANKLIN STREET, RACINE, WI 53403
Principal officer (990-N for 2018)
Heather Wenthold-Bartsch, N70W5420 Bridge Road, Cedarburg WI 53012
Signed the 990
AMELIA FAHNRICH, EXECUTIVE DIRECTOR
Phone
(262) 671-5018
Return prepared by
SIKICH LLC

Mission

OUR MISSION AT SONNENBERG SCHOOLS IS TO PROVIDE AN EDUCATIONAL ENVIRONMENT THAT IS LOVING, SAFE, AND SUPPORTIVE, FOCUSED ON PREPARING STUDENTS WITH UNIQUE LEARNING NEEDS ACADEMICALLY, SOCIALLY, AND EMOTIONALLY FOR THEIR FUTURE LIVES OF SUCCESS.

990 for the year ended June 30, 2025

Program accomplishments

  • SONNENBERG SCHOOLS OPERATES AS A PRIVATE K-12 EDUCATIONAL PROGRAM SERVING STUDENTS WITH DISABILITIES. THE PROGRAM PROVIDES SMALL CLASS SIZES (NO MORE THAN 16 STUDENTS PER CLASSROOM), INDIVIDUALIZED INSTRUCTION, AND A HIGH STAFF-TO-STUDENT RATIO THAT INCLUDES A LEAD TEACHER AND EDUCATIONAL ASSISTANT IN EACH CLASSROOM. DURING THE REPORTING YEAR, SONNENBERG SCHOOLS SERVED APPROXIMATELY 193 STUDENTS, PROVIDING DAILY ACADEMIC INSTRUCTION ALIGNED TO STATE STANDARDS AND SOCIAL-EMOTIONAL LEARNING SUPPORT. STUDENTS RECEIVE TARGETED INTERVENTIONS DESIGNED TO IMPROVE ACADEMIC PERFORMANCE, BEHEAVIORAL REGULATION, AND FUNCTIONAL LIFE SKILLS.
    Expenses $1,975,280 · revenue $2,739,150

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
83-3710153
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2020
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B20)
Assets (IRS master file)
$1,546,544
Income (IRS master file)
$3,067,223

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$3,067,223$2,427,861$1,546,544XML
990June 2024$2,742,177$2,383,692$760,832XML
990June 2023$2,105,856$2,087,609$589,753XML
990June 2022$1,493,576$1,417,535$538,582IRS
990June 2021–––IRS
990June 2020–––IRS
990-N for 2018
Officer: Heather Wenthold-Bartsch
August 31, 2019≤ $50,000 receipts––e-Postcard

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 83-3710153).

Questions about SONNENBERG SCHOOL

What is the EIN of SONNENBERG SCHOOL?
The employer identification number (EIN) of SONNENBERG SCHOOL is 83-3710153.
Is SONNENBERG SCHOOL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2020.
Are donations to SONNENBERG SCHOOL tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SONNENBERG SCHOOL 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 SONNENBERG SCHOOL due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SONNENBERG SCHOOL last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of SONNENBERG SCHOOL?
The 990 for the year ended June 30, 2025 names AMELIA FAHNRICH.
Who are the officers and directors of SONNENBERG SCHOOL?
The 990 for the year ended June 30, 2025 lists 6 people; 4 received compensation from the organization, the highest $101,356 (AMELIA FAHNRICH, EXECUTIVE DIRECTOR).
How much revenue does SONNENBERG SCHOOL have?
On its 990 for the year ended June 30, 2025 it reported revenue of $3,067,223, expenses of $2,427,861 and total assets of $1,546,544 at year end.

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