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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Proof School Jason Horowitz

Jason Horowitz

Highest compensated employee

MATH and Science Teacher at Proof School

Fiscal year ended June 30, 2024. Published on January 25, 2026.

$125,983
2024

Total compensation

Jason Horowitz has been listed as an employee of Proof School in Form 990 filings since fiscal year 2020. Total compensation for Jason Horowitz has increased by 11.4% from 2020 to 2024.

Annual compensation details

$125,983
+2%
MATH and Science Teacher
2024
$115k org
40 hrs/wk
$12k other
--
$123,455
+2.8%
MATH and Science Teacher
2023
$107k org
40 hrs/wk
$18k other
--

Total compensation by year

Compare the compensation of Jason Horowitz to:

2024

Other employees at Proof School

Samuel Vandervelde
Head of School
$273,212
$250,853 from orgNo related comp$22,359 other
Zachary Sifuentes
DEAN of Humanities
$240,146
$223,153 from orgNo related comp$16,993 other
Kathy Lin
Admissions Director
$235,233
$234,360 from orgNo related comp$873 other
Ilyse Gordis
Language ARTS and History Teacher
$122,735
$100,213 from orgNo related comp$22,522 other
Susan Durst
MATH and Music Teacher
$119,149
$111,833 from orgNo related comp$7,316 other
Connie You
Literature Teacher
$110,206
$100,470 from orgNo related comp$9,736 other
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Revisions to this profile

January 25, 2026:
2024 Proof School 990 published
January 25, 2026:
2023 Proof School 990 published
January 25, 2026:
2022 Proof School 990 published

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