Live preview — download the board-ready PDF to attach to your minutes.Download PDF — $49
PeerBasis
Compensation Comparability Determination

Sumner Academy Inc

Executive Director / CEO

EIN 237242981
TN · NTEE B21Z
FY ending 2023-06-30
June 9, 2026

This analysis benchmarks the total compensation of Chan Gammill, Executive Director / CEO ($63,631) against every comparable organization that fit the selection criteria — 129 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 19th percentile of comparable organizationsbelow the typical range for comparable organizations

Benchmarked executive: Chan Gammill — reported title “INTERIM HEAD”, selected as the organization's highest-paid individual — no exact title match, so confirm this is a comparable role.

How comparable organizations were selected

129 organizations qualified on sector, size, and geography 129 within the band form the benchmarked peer set.

Distribution of comparable compensation

$504 total compensation of comparable organizations → $387,067 $63,631
$47,89610th
$69,92325th
$96,712Median
$133,58275th
$192,53990th
$63,631This org · 19th
p10$47,896
p25$69,923
p50$96,712
p75$133,582
p90$192,539
$63,631

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to TN cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
Martin Trust Partnership In Education MA$2,874,522 Executive Director $108,069 $87,424 2025
Medina Academy WA$2,873,578 Principal $83,759 $71,342 2023
Northampton Montessori Society Inc MA$2,910,334 Head Of School $124,049 $103,007 2024
Christian Education Development Company CA$2,850,383 President $63,408 $49,290 2025
The Montessori Children's House Of Valley Forge Inc PA$2,932,357 Head Of School - Current $94,209 $86,813 2024
🔒 124 more comparable organizations — included in the purchased report

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to TN cost of living and 2023 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to TN cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default19th
Total compensation (D + F), as reported (no adjustments)16th
Reportable pay only (column D), adjusted21st
All sources (D + E + F), adjusted17th

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Ready-to-adopt board minutes — executive compensation

🔒 The complete minutes language — three numbered resolutions pre-filled with this organization, the 129-organization comparison, the date, and the percentile finding, ready to paste into your minutes — is included in the purchased report.

Unlock the board report — $49

Running reports for this organization all year? Annual Org Pass — $99/yr.

Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.