Nonprofit · EIN 31-1585646
MARS SOCIETY INC
Also known as MARS SOCIETY
Tax-exempt · LAKEWOOD, CO 80215
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| March 31, 2025 | 990 | $284,254 | $662,716 | -$378,462 | $495,397 | $0 | $495,397 |
| March 31, 2024 | 990 | $657,438 | $744,050 | -$86,612 | $873,859 | $0 | $873,859 |
| March 31, 2023 | 990 | $250,169 | $550,902 | -$300,733 | $960,899 | $428 | $960,471 |
Financial details: 990 for the year ended March 31, 2025
Revenue
- Contributions, gifts and grants
- $126,409
- Membership dues
- $12,930
- Program service revenue
- $147,596
- Investment income
- $10,249
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $19,903
- Professional fundraising fees
- $0
- Accounting fees
- $3,062
- Occupancy
- $21,391
- Depreciation
- $29,194
- Program services (functional)
- $615,294
- Management and general (functional)
- $47,422
Balance sheet and other
- Total assets, start of year
- $873,859
- Total assets, end of year
- $495,397
- Total liabilities, end of year
- $0
- Net assets, end of year
- $495,397
- Land, buildings and equipment
- $34,003
- Net assets without donor restrictions
- $495,397
- Gross receipts
- $284,254
- Employees
- 0
- Year formed
- 1997
- State of legal domicile
- CO
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 March 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| James Heisler | Chairman Trustee or director | 0 | $0 |
| Tony Muscatello | Director Trustee or director | 0 | $0 |
| Robert Zubrin | President Trustee or director, Officer | 0 | $0 |
990 for the year ended March 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JAMES HEISLER | CHAIRMAN Trustee or director | 2 | $0 |
| TONY MUSCATELLO | DIRECTOR Trustee or director | 2 | $0 |
| ROBERT M ZUBRIN | PRESIDENT Trustee or director, Officer | 10 | $0 |
990 for the year ended March 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Robert M Zubin | President Trustee or director | 0 | $0 |
| James Burk | Executive Dir. Trustee or director | 0 | $0 |
| James Heisler | Chairman Trustee or director | 0 | $0 |
| Tony Muscatello | Director Trustee or director | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 11111 W 8TH AVE STE A, LAKEWOOD, CO 80215-5516
- In care of
- % ROBERT ZUBRIN
- Principal officer (990 for 2024)
- Robert Zubrin, 11111 W 8th Ave, Denver, CO 80215
- Signed the 990
- ROBERT ZUBRIN, President
- Website
- www.marssociety.org
- Return prepared by
- Brian N Poole CPA PC
Mission
Public outreach for fostering Mars Pioneer and worldwide support for government funded Mars research and exploration
Program accomplishments
- Crews of Mars enthusiasts, students, scientists and volunteers spent 2 or 3 week rotations living, working and conducting expiriments at the habitat designed to simulate the challenges of humans living on MarsExpenses $615,294
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 March, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | March 31, 2026 | August 17, 2026 | Not on file |
| 2024 | March 31, 2025 | August 15, 2025 | 990 on file |
| 2023 | March 31, 2024 | August 15, 2024 | 990 on file |
IRS record
- EIN
- 31-1585646
- 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
- 1998
- Accounting year ends
- March
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U31)
- Assets (IRS master file)
- $495,397
- Income (IRS master file)
- $284,254
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | March 2025 | $284,254 | $662,716 | $495,397 | XML |
| 990 | March 2024 | $657,438 | $744,050 | $873,859 | XML |
| 990 | March 2023 | $250,169 | $550,902 | $960,899 | XML |
| 990 | March 2022 | – | – | – | IRS |
| 990 | March 2021 | – | – | – | IRS |
| 990 | March 2020 | – | – | – | IRS |
| 990 | March 2019 | – | – | – | IRS |
| 990 | March 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 31-1585646).
Questions about MARS SOCIETY INC
- What is the EIN of MARS SOCIETY INC?
- The employer identification number (EIN) of MARS SOCIETY INC is 31-1585646.
- Is MARS SOCIETY INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.
- Are donations to MARS SOCIETY INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MARS 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 MARS SOCIETY INC due?
- The return for tax year 2025 (the year ending March 31, 2026) is due August 17, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MARS SOCIETY INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended March 2025.
- Who is the principal officer of MARS SOCIETY INC?
- The 990 for the year ended March 31, 2025 names Robert Zubrin.
- Who are the officers and directors of MARS SOCIETY INC?
- The 990 for the year ended March 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does MARS SOCIETY INC have?
- On its 990 for the year ended March 31, 2025 it reported revenue of $284,254, expenses of $662,716 and total assets of $495,397 at year end.
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