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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>Endowment funds are assets of the School that are invested to provide support to the School. A portion of the investment return is utilized to support the School's operations in fulfillment of its mission and a portion to enhance and maintain the purchasing capacity of the permanently restricted net assets.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>In accordance with Section 501(c)(3) of the Internal Revenue Code, the School is exempt from federal and state income taxes and, accordingly, the financial statements do not reflect a provision for income taxes. These determinations have been reviewed according to guidance in a Financial Accounting Standards Board pronouncement related to accounting for uncertainty in income taxes. In determining the recognition of uncertain tax positions, the School now applies a more-likely-than-not recognition threshold and determines the measurement of uncertain tax positions considering the amounts and probabilities of the outcomes that could be realized upon ultimate settlement with taxing authorities. As of June 30, 2017, the School has no uncertain tax positions that qualify for either recognition or disclosure in the financial statements. The School is generally subject to potential examination by taxing jurisdictions for the prior three years.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 4b - Other Adjustments:</FormAndLineReferenceDesc>
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        <FormAndLineReferenceDesc>Schedule E, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>The notice of nondiscriminatory policy toward students is published annually in The Boston Globe.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Brimmer and May requires all families asking for financial grant awards to complete a financial aid application. The School partners with School and Student Service for Financial Aid (SSS) for the application process, which includes a full personal financial statement and two years of federal tax returns and W-2's. SSS provides an independent assessment of what the family can contribute towards educational costs. All financial grant awards are based on need as determined by the Financial Aid Committee using all information obtained in the application and from SSS. Once the Financial Aid Office receives all financial materials pertaining to the application, the Committee will review each family's request. Consideration for aid is made after a student has been offered a place at Brimmer and May. Once the award has been given and the student enrolls at the School, the Business Office is given the amount of the award to process against the student account. These funds are part of the School's operating budget and the Business Office produces reports in order to verify against the final financial aid reports to student billing.</ExplanationTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Joseph Iuliano</PersonNm>
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        <PurposeDesc>Defeasance of 2005 bond, repayment of mortgage, reimbursement for art center</PurposeDesc>
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        <MethodOfDeterminingRevenuesTxt>Sale value</MethodOfDeterminingRevenuesTxt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>A trustee provides family council services to another trustee.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Treasurer reviews the Form 990 to ensure that it is complete and accurate. The Audit Committee then reviews the Form 990 in its complete form and authorizes it to be signed by the Treasurer and filed with the IRS. The Form 990 is distributed in a secure electronic format to the full governing body with Schedule B deleted.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conflict of Interest Policy is regularly and consistently monitored by the Board of Trustees. Compliance with the policy is enforced by the Governing Board, which informs new trustees and committee appointees of its policy and requires disclosure annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>On June 30, 2016, the School entered into a five year employment contract with the Head of School. The Head of School's salary is determined annually by a compensation committee comprised of independent members of the Board of Trustees based on performance, the School's financial position and salary adjustments paid other School Administrators with comparable duties and responsibilities, never to be less than the salary at start of the employment contract.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing documents, conflict of interest policy and financial statements of the School are made available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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</Return>