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EIN43-0653611

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Washington University

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

Exempt under
501(c)(3)[1]
IRS ruling date
August 1933[2]
Publication 78 data
Listed (PC)[3]
Total revenue, period ending Jun 2025
$5,899,375,814[4]

Washington University is listed in IRS records as an organization in ST Louis, Missouri, exempt under section 501(c)(3)[5][1]. The IRS master file lists total revenue of $5,899,375,814 for the tax period ending June 2025[4].

IRS status

The IRS lists Washington University as exempt under section 501(c)(3), classification: Educational Organization[1]. Its foundation code is 11, described as School 170(b)(1)(A)(ii)[6]. It appears in IRS Publication 78 data with status code PC, a public charity[3]. The IRS master file gives a ruling date of August 1933[2].

Item IRS record
EIN[5] 43-0653611
Location in IRS records[5] ST Louis, Missouri
Exempt under[1] Section 501(c)(3)
IRS classification[1] Educational Organization
Ruling date[2] August 1933
Foundation code[6] 11: School 170(b)(1)(A)(ii)
Deductibility code[7] 1: Contributions are deductible
Publication 78 data[3] Listed, status PC
NTEE code[8] B430: Education, University or Technological Institute
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, Washington University reported total revenue of $5,086,312,965[12]. That included contributions, gifts and grants of $964,367,403 and program service revenue of $3,516,590,186[13]. It reported total expenses of $5,011,674,219 and net assets of $15,385,744,569 for that period[12]. Total revenue on its Form 990 was $4,891,410,261 for the period ending June 2021[14] and $5,567,524,594 for the period ending June 2022[15]. Net assets on the Form 990 for June 2021 were $17,750,105,348[14], higher than the $15,385,744,569 reported for June 2023[12].

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 $5,899,375,814 and total assets of $22,330,732,000.[4]

June 2021: total revenue $4.9B$4.9BJune 2021: total expenses $4.1B$4.1BJun 2021June 2022: total revenue $5.6B$5.6BJune 2022: total expenses $4.5B$4.5BJun 2022June 2023: total revenue $5.1B$5.1BJune 2023: total expenses $5.0B$5.0BJun 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$4,891,410,261$4,080,045,645$17,750,105,348
June 2022[15]Form 990$5,567,524,594$4,492,247,424$16,044,453,328
June 2023[12]Form 990$5,086,312,965$5,011,674,219$15,385,744,569

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] $19,792,327,000
Total liabilities[16] $4,406,582,431
Net assets or fund balances[16] $15,385,744,569

Employees. Washington University reported 30,487 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, Washington University reported 4,749 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, Washington University answered yes to: it operated a school; it maintained donor advised funds; it engaged in lobbying activities; it had an office outside the United States.[19]

Questions people ask

What is the EIN of Washington University?
The IRS master file lists Washington University with EIN 43-0653611[5].
Is Washington University a 501(c)(3)?
Yes, the IRS lists it as exempt under section 501(c)(3), classification: Educational Organization[1].
Are contributions to Washington University tax-deductible?
IRS deductibility code 1 reads: Contributions are deductible[7]. It appears in Publication 78 data with status code PC[3].
Where is Washington University located?
The IRS master file lists it in ST Louis, Missouri[5].
What revenue did Washington University report?
The IRS master file lists total revenue of $5,899,375,814 for the tax period ending June 2025[4]. Its Form 990 for the tax period ending June 2023 reported total revenue of $5,086,312,965[12].

Facts and sources

  1. The IRS lists Washington University 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 August 1933. IRS EO Business Master File
  3. Washington University (EIN 43-0653611) 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 $5,899,375,814 and total assets of $22,330,732,000. IRS EO Business Master File
  5. The IRS Exempt Organizations Business Master File lists Washington University with employer identification number (EIN) 43-0653611, located in ST Louis, Missouri. IRS EO Business Master File
  6. IRS foundation code 11 for Washington University: School 170(b)(1)(A)(ii). IRS EO Business Master File
  7. IRS deductibility code 1 for Washington University: Contributions are deductible. IRS EO Business Master File
  8. The IRS master file assigns Washington University the National Taxonomy of Exempt Entities (NTEE) code B430: Education, University or Technological Institute. IRS EO Business Master File
  9. IRS filing requirement code 01 for Washington University: 990 (all other) or 990EZ return. IRS EO Business Master File
  10. Washington University'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 Washington University 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, Washington University reported total revenue $5,086,312,965, total expenses $5,011,674,219, net assets or fund balances at year end $15,385,744,569. IRS SOI Form 990 extracts
  13. Revenue lines on the Form 990 for the tax period ending June 2023: contributions, gifts and grants $964,367,403 (Part VIII, line 1h); program service revenue $3,516,590,186 (Part VIII, line 2g); investment income $116,073,717 (Part VIII, line 3); total revenue $5,086,312,965 (Part VIII, line 12). IRS SOI Form 990 extracts
  14. On its Form 990 for the tax period ending June 2021, Washington University reported total revenue $4,891,410,261, total expenses $4,080,045,645, net assets or fund balances at year end $17,750,105,348. IRS SOI Form 990 extracts
  15. On its Form 990 for the tax period ending June 2022, Washington University reported total revenue $5,567,524,594, total expenses $4,492,247,424, net assets or fund balances at year end $16,044,453,328. IRS SOI Form 990 extracts
  16. Balance sheet at the end of the tax period ending June 2023 (Form 990, Part X): total assets $19,792,327,000, total liabilities $4,406,582,431, net assets or fund balances $15,385,744,569. IRS SOI Form 990 extracts
  17. Washington University reported 30,487 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, Washington University reported 4,749 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, Washington University answered yes to: it operated a school; it maintained donor advised funds; it engaged in lobbying activities; it had an office outside the United States. 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.