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Nonprofit · EIN 46-6040533

SOUTH DAKOTA OPTOMETRIC SOCIETY

Tax-exempt · PIERRE, SD 57501

Financials

$329K$365K2023$355K$345K2024$256K$214K2025
Revenue Expenses · by fiscal year end
Financials of SOUTH DAKOTA OPTOMETRIC SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$255,696$213,862$41,834$968,623$5,161$963,462
December 31, 2024990$354,724$345,349$9,375$901,478$5,164$896,314
December 31, 2023990$328,964$365,326-$36,362$853,355$4,972$848,383
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$137,204
Membership dues
$137,204
Program service revenue
$83,304
Investment income
$35,188
Net gain from sales of assets
$13,710
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$70,849
Salaries, compensation and benefits (total)
$76,411
Professional fundraising fees
$0
Legal fees
$7,752
Accounting fees
$3,395
Occupancy
$9,804
Travel
$16,068
Program services (functional)
$213,862

Balance sheet and other

Total assets, start of year
$901,478
Total assets, end of year
$968,623
Total liabilities, end of year
$5,161
Net assets, end of year
$963,462
Land, buildings and equipment
$495
Publicly traded securities
$800,104
Net assets without donor restrictions
$963,462
Gross receipts
$409,852
Employees
1
Volunteers
0
Year formed
1971
State of legal domicile
SD

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 December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
DEB MORTENSONEXECUTIVE DIRECTOR
Officer
1$70,849
DR JUSTIN SCHWEITZERPAST PRESIDENT
Trustee or director, Officer
1$0
DR ASHLEY CRABTREEPRESIDENT
Trustee or director, Officer
1$0
DR ERIC PORISCHTREASURER
Trustee or director, Officer
1$0
DR JOHN OLSONBOARD MEMBER
Trustee or director
1$0
DR ROSS ENGLISHBOARD MEMBER
Trustee or director
1$0
DR JERIKA KIRWAN ODPRESIDENT ELECT
Trustee or director
1$0
DR CHRISTIAN DEJONGHBOARD MEMBER
Trustee or director
1$0
DR RENAE WELKEBOARD MEMBER
Trustee or director
1$0
990 for the year ended December 31, 2024: 9 people
NameTitleHours / weekCompensation
DEB MORTENSONEXECUTIVE DIRECTOR
Officer
1$66,839
DR JUSTIN SCHWEITZERPRESIDENT
Trustee or director, Officer
1$0
DR ASHLEY CRABTREEPRESIDENT ELECT
Trustee or director
1$0
DR ERIC PORISCHTREASURER
Trustee or director, Officer
1$0
DR AIMEE SCHULTEPAST PRESIDENT
Trustee or director
1$0
DR ROSS ENGLISHBOARD MEMBER
Trustee or director
1$0
DR JERIKA KIRWAN ODBOARD MEMBER
Trustee or director
1$0
JASON SCHMIT ODBOARD MEMBER
Trustee or director
1$0
DR RENAE WELKEBOARD MEMBER
Trustee or director
1$0
990 for the year ended December 31, 2023: 9 people
NameTitleHours / weekCompensation
DEB MORTENSONEXECUTIVE DIRECTOR
Officer
40$63,667
DR JUSTIN SCHWEITZERPRESIDENT
Trustee or director
1$0
DR ASHLEY CRABTREEPRESIDENT ELECT
Trustee or director
1$0
DR ERIC PORISCHTREASURER
Trustee or director
1$0
DR AIMEE SCHULTEPAST PRESIDENT
Trustee or director
1$0
DR ROSS ENGLISHBOARD MEMBER
Trustee or director
1$0
DR JERIKA KIRWAN ODBOARD MEMBER
Trustee or director
1$0
JASON SCHMIT ODBOARD MEMBER
Trustee or director
1$0
DR RENAE WELKEBOARD MEMBER
Trustee or director
1$0

Address and contacts

Address (IRS master file)
PO BOX 1173, PIERRE, SD 57501-1173
In care of
% DEB MORTENSON EXECUTIVE DIRECTOR
Principal officer (990 for 2025)
DEB MORTENSON, PO BOX 1137, PIERRE, SD 57501
Signed the 990
DEB MORTENSON, EXECUTIVE DIRECTOR
Phone
(605) 280-9372
Return prepared by
Take Charge Bookkeeping LLC

Mission

ASSIST IN THE ORGANIZATION AND DEVELOPMENT OF SOUTH DAKOTA OPTOMETRISTS IN ORDER TO BETTER SERVE SOUTH DAKOTA RESIDENTS.

990 for the year ended December 31, 2025

Program accomplishments

  • TO SERVE AS THE STATE PROFESSIONAL SOCIETY OF OPTOMETRISTS WHICH REPRESENTS THE PROFESSION OF OPTOMETRY, ENHANCES PUBLIC AWARENESS AND SERVES THE BEST INTERESTS OF PUBLIC HEALTH AND OPTMETRY.

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 yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
46-6040533
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1975
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$968,623
Income (IRS master file)
$409,852

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$255,696$213,862$968,623IRS
990December 2024$354,724$345,349$901,478XML
990December 2023$328,964$365,326$853,355XML
990December 2022$342,936$360,148$889,888IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS
990December 2017–––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 46-6040533).

Questions about SOUTH DAKOTA OPTOMETRIC SOCIETY

What is the EIN of SOUTH DAKOTA OPTOMETRIC SOCIETY?
The employer identification number (EIN) of SOUTH DAKOTA OPTOMETRIC SOCIETY is 46-6040533.
Is SOUTH DAKOTA OPTOMETRIC SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1975.
Are donations to SOUTH DAKOTA OPTOMETRIC SOCIETY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does SOUTH DAKOTA OPTOMETRIC 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 SOUTH DAKOTA OPTOMETRIC 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 SOUTH DAKOTA OPTOMETRIC SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of SOUTH DAKOTA OPTOMETRIC SOCIETY?
The 990 for the year ended December 31, 2025 names DEB MORTENSON.
Who are the officers and directors of SOUTH DAKOTA OPTOMETRIC SOCIETY?
The 990 for the year ended December 31, 2025 lists 9 people; 1 received compensation from the organization, the highest $70,849 (DEB MORTENSON, EXECUTIVE DIRECTOR).
How much revenue does SOUTH DAKOTA OPTOMETRIC SOCIETY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $255,696, expenses of $213,862 and total assets of $968,623 at year end.

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