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Mason Preparatory School

EIN 57-0447248Charleston, SCEducationLatest 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 6, 2026, 1:55 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)

$6.7Mrevenue
FY2025 · +22% in 3 yrs
98staff
8 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpending
$0$2.0M$4.0M$6.0M$8.0M’18’19’20’21’22’23’24’25
Against similar nonprofits FY2025
Operating margin17.1%
Months of reserve8.7mo
Revenue growth (annualized)+5.2%
Middle half of peersMedianMason Preparatory School
Where the money goes FY2025 · $5.6M spent
Programs$4.7M84%Management and general$775k14%Fundraising$108k2%990 FY2025 · Part IX line 25