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Millbrook School

EIN 14-1413770Millbrook, NYEducationLatest 990 FY2025

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Listed with the IRS. Every screen came back clear.

A 501(c)(3) on Publication 78 and the IRS master file.

A paid feature, included from the $75 plan up. Sign in to download.Checked Nov 5, 2026, 1:14 PM ET
IRS nonprofit listing
No issue
Revocation
None
IRS files
Agree
Sanctions
No match
IRS bulletin
No notice
California
No record
Charity type
509(a)(1)

$45Mrevenue
FY2025 · +58% in 3 yrs
208staff
8 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
$0$10M$20M$30M$40M$50M’18’19’20’21’22’23’24’25
Against similar nonprofits FY2025
Operating margin23.3%
Months of reserve4.2mo
Revenue growth (annualized)+4.8%
Middle half of peersMedianMillbrook School
Where the money goes FY2025 · $35M spent
Programs$27M77%Management and general$5.8M17%Fundraising$2.2M6%990 FY2025 · Part IX line 25