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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 81-5206100

NAUTILUS HEALTH INSTITUTE

Tax-exempt · SEATTLE, WA 98104

Financials

$190K$117K2025
Revenue Expenses · by fiscal year end
Financials of NAUTILUS HEALTH INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-EZ$190,254$117,186$73,068$84,345–$84,345
Financial details: 990-EZ for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$189,085
Investment income
$1,169

Expenses

Compensation of officers, directors and key employees
$0
Professional fees and payments to contractors
$104,245
Printing, publications and postage
$784
Other expenses
$12,157
Program services (functional)
$111,839

Balance sheet and other

Total assets, start of year
$11,277
Total assets, end of year
$84,345
Total liabilities, end of year
–
Net assets, end of year
$84,345
Cash, savings and investments
$84,345
Gross receipts
$190,254

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.

NameTitleHours / weekCompensation
David ChasePresident Board of Directors10$0
Sean SchantzenExecutive Director15$0

Address and contacts

Address (IRS master file)
600 1ST AVE STE 330 PMB 292523, SEATTLE, WA 98104-2246
Mailing address (990-N for 2024)
614 12th Street, Bellingham WA 98225
Principal officer (990-N for 2024)
Dave Chase, 614 12th Street, Bellingham WA 98225
Signed the 990-EZ
Sean Schantzen, Executive Director

Mission

The mission of Nautilus Health Institute Nautilus is to redirect Americas healthcare resources toward community wellbeing by democratizing the proven tools standards and technology that enable patients employers and local systems to optimize health outcomes and control costs.

990-EZ for the year ended December 31, 2025

Program accomplishments

  • We envision an America where healthcare dollars effectively serve community wellbeing where employers and unions become engines of health transformation and where excellence in health plans is accessible to all. By providing open-source infrastructure and standards were transforming an inefficient system into one that prioritizes patient outcomes over institutional profit margins.
    Expenses $111,839

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-EZ on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2026 990-EZ for NAUTILUS HEALTH INSTITUTE

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
81-5206100
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2017
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E05)
Assets (IRS master file)
$84,345
Income (IRS master file)
$190,254

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZDecember 2025$190,254$117,186$84,345IRS
990-N for 2024
Officer: Dave Chase
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Dave Chase
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Dave Chase
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: SEAN SCHANTZEN
December 31, 2020≤ $50,000 receipts––e-Postcard
990-EZDecember 2018–––IRS
990-EZDecember 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 81-5206100).

Questions about NAUTILUS HEALTH INSTITUTE

What is the EIN of NAUTILUS HEALTH INSTITUTE?
The employer identification number (EIN) of NAUTILUS HEALTH INSTITUTE is 81-5206100.
Is NAUTILUS HEALTH INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2017.
Are donations to NAUTILUS HEALTH INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does NAUTILUS HEALTH INSTITUTE 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 NAUTILUS HEALTH INSTITUTE 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 NAUTILUS HEALTH INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
Who is the principal officer of NAUTILUS HEALTH INSTITUTE?
The 990-N for 2024 names Dave Chase.
Who are the officers and directors of NAUTILUS HEALTH INSTITUTE?
The 990-EZ for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
How much revenue does NAUTILUS HEALTH INSTITUTE have?
On its 990-EZ for the year ended December 31, 2025 it reported revenue of $190,254, expenses of $117,186 and total assets of $84,345 at year end.

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