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EIN04-2103916

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Museum of Science

Updated October 30, 2026. Based on Internal Revenue Service records. Published by Humblebee.

Exempt under
501(c)(3)[1]
IRS ruling date
December 1993[2]
Publication 78 data
Listed (PC)[3]
Total revenue, period ending Jun 2025
$56,491,241[4]

Museum of Science is an organization in Boston, Massachusetts that the IRS lists as exempt under section 501(c)(3)[5][1]. The IRS master file lists total revenue of $56,491,241 for the tax period ending June 2025[4].

IRS status

The IRS lists Museum of Science as exempt under section 501(c)(3), classification: Educational Organization[1]. Its foundation code is 15: Organization that receives a substantial part of its support from a governmental unit or the general public 170(b)(1)(A)(vi)[6]. It appears in Publication 78 data with status code PC, a public charity, with deductibility limitation 50% (60% for cash contributions)[3]. The IRS ruling date is December 1993[2].

Item IRS record
EIN[5] 04-2103916
Location in IRS records[5] Boston, Massachusetts
Exempt under[1] Section 501(c)(3)
IRS classification[1] Educational Organization
Ruling date[2] December 1993
Foundation code[6] 15: Organization that receives a substantial part of its support from a governmental unit or the general public 170(b)(1)(A)(vi)
Deductibility code[7] 1: Contributions are deductible
Publication 78 data[3] Listed, status PC
NTEE code[8] A570: Arts, Culture and Humanities, Science and Technology Museums
Filing requirement[9] 990 (all other) or 990EZ return
Fiscal year ends[10] June
Latest e-filed return[11] Form 990, tax period ending June 2025

Finances as reported to the IRS

On its Form 990 for the tax period ending June 2023, Museum of Science reported total revenue of $72,506,770, total expenses of $66,023,873 and net assets of $336,924,117[12]. Revenue lines that period included contributions, gifts and grants of $30,533,140 and program service revenue of $23,579,006[13]. Total revenue on its Form 990 was $53,494,363 for the tax period ending June 2021[14] and $71,466,361 for the tax period ending June 2022[15]. The 2022 figure was higher than the 2021 figure, and the 2023 figure was higher than both. Separately, the IRS master file lists total revenue of $56,491,241 and total assets of $519,926,742 for the tax period ending June 2025[4].

IRS master file, newer period. For the most recent return in the IRS master file, for the tax period ending June 2025, the IRS lists total revenue of $56,491,241 and total assets of $519,926,742.[4]

June 2021: total revenue $53.5M$53.5MJune 2021: total expenses $49.6M$49.6MJun 2021June 2022: total revenue $71.5M$71.5MJune 2022: total expenses $58.6M$58.6MJun 2022June 2023: total revenue $72.5M$72.5MJune 2023: total expenses $66.0M$66.0MJun 2023
  • Total revenue
  • Total expenses
Amounts as reported on each return, rounded in the chart. Exact figures are in the table below[12].
Tax period ending Form Total revenue Total expenses Net assets at year end
June 2021[14]Form 990$53,494,363$49,559,451$329,199,972
June 2022[15]Form 990$71,466,361$58,555,016$323,110,391
June 2023[12]Form 990$72,506,770$66,023,873$336,924,117

Totals as reported on each return. The IRS publishes these extracts one to two years after filing.

Balance sheet, tax period ending June 2023

Line Amount
Total assets[16] $356,576,389
Total liabilities[16] $19,652,272
Net assets or fund balances[16] $336,924,117

Employees. Museum of Science reported 488 employees on Form W-3 for calendar year ending with or within the tax period ending June 2023 (Form 990, Part V, line 2a).[17]

Compensation over $100,000. On the Form 990 for the tax period ending June 2023, Museum of Science reported 49 individuals who received more than $100,000 of reportable compensation from the organization (Part VII, line 2).[18]

Form 990 checklist. In the Form 990 checklist (Part IV) for the tax period ending June 2023, Museum of Science answered yes to: it engaged in lobbying activities; it reported professional fundraising services.[19]

Questions people ask

What is the EIN of Museum of Science?
The IRS master file lists Museum of Science with EIN 04-2103916, located in Boston, Massachusetts[5].
Is Museum of Science a 501(c)(3) nonprofit?
The IRS lists it as exempt under section 501(c)(3), classification: Educational Organization[1].
Are contributions to Museum of Science tax-deductible?
IRS deductibility code 1 says: Contributions are deductible[7]. Publication 78 lists it with status code PC, deductibility limitation 50% (60% for cash contributions)[3].
Where is Museum of Science located?
The IRS master file lists it in Boston, Massachusetts[5].
What revenue did Museum of Science report?
On its Form 990 for the tax period ending June 2023, it reported total revenue of $72,506,770[12]. The IRS master file lists $56,491,241 for the tax period ending June 2025[4].

Facts and sources

  1. The IRS lists Museum of Science as exempt under section 501(c)(3) of the Internal Revenue Code, classification: Educational Organization. IRS EO Business Master File
  2. The ruling date in the IRS master file (the month and year of the IRS letter recognizing the exemption) is December 1993. IRS EO Business Master File
  3. Museum of Science (EIN 04-2103916) appears in the IRS Publication 78 data, the list of organizations eligible to receive tax-deductible charitable contributions, with status code PC (A public charity, deductibility limitation 50% (60% for cash contributions)). IRS Tax Exempt Organization Search data
  4. For the most recent return in the IRS master file, for the tax period ending June 2025, the IRS lists total revenue of $56,491,241 and total assets of $519,926,742. IRS EO Business Master File
  5. The IRS Exempt Organizations Business Master File lists Museum of Science with employer identification number (EIN) 04-2103916, located in Boston, Massachusetts. IRS EO Business Master File
  6. IRS foundation code 15 for Museum of Science: Organization that receives a substantial part of its support from a governmental unit or the general public 170(b)(1)(A)(vi). IRS EO Business Master File
  7. IRS deductibility code 1 for Museum of Science: Contributions are deductible. IRS EO Business Master File
  8. The IRS master file assigns Museum of Science the National Taxonomy of Exempt Entities (NTEE) code A570: Arts, Culture and Humanities, Science and Technology Museums. IRS EO Business Master File
  9. IRS filing requirement code 01 for Museum of Science: 990 (all other) or 990EZ return. IRS EO Business Master File
  10. Museum of Science's accounting period (fiscal year) ends in June, according to the IRS master file. IRS EO Business Master File
  11. The IRS Form 990 series e-file data released in 2026 includes a Form 990 from Museum of Science for the tax period ending June 2025. IRS Form 990 e-file data
  12. On its Form 990 for the tax period ending June 2023, Museum of Science reported total revenue $72,506,770, total expenses $66,023,873, net assets or fund balances at year end $336,924,117. IRS SOI Form 990 extracts
  13. Revenue lines on the Form 990 for the tax period ending June 2023: contributions, gifts and grants $30,533,140 (Part VIII, line 1h); program service revenue $23,579,006 (Part VIII, line 2g); investment income $3,879,169 (Part VIII, line 3); total revenue $72,506,770 (Part VIII, line 12). IRS SOI Form 990 extracts
  14. On its Form 990 for the tax period ending June 2021, Museum of Science reported total revenue $53,494,363, total expenses $49,559,451, net assets or fund balances at year end $329,199,972. IRS SOI Form 990 extracts
  15. On its Form 990 for the tax period ending June 2022, Museum of Science reported total revenue $71,466,361, total expenses $58,555,016, net assets or fund balances at year end $323,110,391. IRS SOI Form 990 extracts
  16. Balance sheet at the end of the tax period ending June 2023 (Form 990, Part X): total assets $356,576,389, total liabilities $19,652,272, net assets or fund balances $336,924,117. IRS SOI Form 990 extracts
  17. Museum of Science reported 488 employees on Form W-3 for calendar year ending with or within the tax period ending June 2023 (Form 990, Part V, line 2a). IRS SOI Form 990 extracts
  18. On the Form 990 for the tax period ending June 2023, Museum of Science reported 49 individuals who received more than $100,000 of reportable compensation from the organization (Part VII, line 2). IRS SOI Form 990 extracts
  19. In the Form 990 checklist (Part IV) for the tax period ending June 2023, Museum of Science answered yes to: it engaged in lobbying activities; it reported professional fundraising services. IRS SOI Form 990 extracts

All figures are as the organization reported them to the IRS for the stated tax period. Say the tax period with every figure. Finance figures come from the IRS SOI annual extracts, which lag filing by one to two years. The IRS master file can list a newer period: keep the two apart and name each period. To see an organization's own filings, use the IRS Tax Exempt Organization Search.