Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 91-6458451

WISSNER-SLIVKA FOUNDATION

Tax-exempt · BELLEVUE, WA 98009

Financials

$82K$258K2023$78K$153K2024$65K$7K2025
Revenue Expenses · by fiscal year end
Financials of WISSNER-SLIVKA FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$65,064$6,636$58,428$1,580,729$0$1,580,729
December 31, 2024990-PF$78,078$152,916-$74,838$1,522,301$0$1,522,301
December 31, 2023990-PF$81,606$257,699-$176,093$1,597,139$0$1,597,139
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Dividends
$65,064

Expenses

Grants and similar amounts paid
$1,000
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$3,512
Excise tax on investment income
$875

Balance sheet and other

Total assets, start of year
$1,522,301
Total assets, end of year
$1,580,729
Total liabilities, end of year
$0
Net assets, end of year
$1,580,729
Fair market value of assets
$1,580,729
Qualifying distributions
$3,512
Net investment income
$65,064

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-PF for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
BENJAMIN W SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
LISA WISSNER-SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
MAX SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
NATHANIEL SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
LAUREN SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
990-PF for the year ended December 31, 2024: 5 people
NameTitleHours / weekCompensation
BENJAMIN W SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
LISA WISSNER-SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
MAX SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
NATHANIEL SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
LAUREN SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
990-PF for the year ended December 31, 2023: 5 people
NameTitleHours / weekCompensation
BENJAMIN W SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
LISA WISSNER-SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.75$0
MAX SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
NATHANIEL SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0
LAUREN SLIVKA
PO BOX 3904, CLYDE HILL, WA 98009
TRUSTEE0.25$0

Address and contacts

Address (IRS master file)
PO BOX 3904, BELLEVUE, WA 98009-3904
In care of
% LISA WISSNER-SLIVKA
Signed the 990-PF
LISA WISSNER-SLIVKA, TRUSTEE
Phone
(425) 454-8182
Return prepared by
EIDE BAILLY LLP

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
91-6458451
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
1998
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$1,580,729
Income (IRS master file)
$65,064

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$65,064$6,636$1,580,729IRS
990-PFDecember 2024$78,078$152,916$1,522,301IRS
990-PFDecember 2023$81,606$257,699$1,597,139XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––IRS
990-PFDecember 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 91-6458451).

Questions about WISSNER-SLIVKA FOUNDATION

What is the EIN of WISSNER-SLIVKA FOUNDATION?
The employer identification number (EIN) of WISSNER-SLIVKA FOUNDATION is 91-6458451.
Is WISSNER-SLIVKA FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.
Are donations to WISSNER-SLIVKA FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does WISSNER-SLIVKA FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of WISSNER-SLIVKA FOUNDATION 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 WISSNER-SLIVKA FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended December 2025.
Who are the officers and directors of WISSNER-SLIVKA FOUNDATION?
The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
How much revenue does WISSNER-SLIVKA FOUNDATION have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $65,064, expenses of $6,636 and total assets of $1,580,729 at year end.

Other nonprofits in BELLEVUE

All nonprofits in BELLEVUE · Washington · Philanthropy, voluntarism and grantmaking foundations