<SEC-DOCUMENT>0001752724-22-202562.txt : 20220909
<SEC-HEADER>0001752724-22-202562.hdr.sgml : 20220909
<ACCEPTANCE-DATETIME>20220909104149
ACCESSION NUMBER:		0001752724-22-202562
CONFORMED SUBMISSION TYPE:	N-CEN
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20220630
FILED AS OF DATE:		20220909
DATE AS OF CHANGE:		20220909
EFFECTIVENESS DATE:		20220909

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EATON VANCE SENIOR INCOME TRUST
		CENTRAL INDEX KEY:			0001070732
		IRS NUMBER:				043435040

	FILING VALUES:
		FORM TYPE:		N-CEN
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09013
		FILM NUMBER:		221235304

	BUSINESS ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-482-8260

	MAIL ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
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          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
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            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
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            <principalTotalPurchaseSale>39549018.69000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>41707508.28000000</principalTotalPurchaseSale>
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          <principalTransaction>
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            <principalFileNo>8-129</principalFileNo>
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            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>25110567.61000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>48735232.96000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
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            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>27068405.49000000</principalTotalPurchaseSale>
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        </principalTransactions>
        <principalAggregatePurchase>326376941.86000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>140399959.25230769</mnthlyAvgNetAssets>
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    </managementInvestmentQuestionSeriesInfo>
    <closedEndManagementInvestment>
      <securityRelatedItems>
        <securityRelatedItem>
          <description>Preferred stock</description>
          <securityClassTitle>Auction Preferred Shares</securityClassTitle>
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            <commonStock commonStockExchange="N/A" commonStockTickerSymbol="N/A"/>
          </commonStocks>
        </securityRelatedItem>
        <securityRelatedItem>
          <description>Common stock</description>
          <securityClassTitle>Common Shares</securityClassTitle>
          <commonStocks>
            <commonStock commonStockExchange="XNYS" commonStockTickerSymbol="EVF"/>
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        </securityRelatedItem>
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      <isRightsOffering>N</isRightsOffering>
      <isSecondaryOffering>N</isSecondaryOffering>
      <repurchaseSecurities isRepurchaseSecurity="Y">
        <repurchaseSecurityType>Preferred stock</repurchaseSecurityType>
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      <isDividendsInArrears>N</isDividendsInArrears>
      <isSecuritiesModified>N</isSecuritiesModified>
      <managementFee>1.10000000</managementFee>
      <netOperatingExpenses>2.38000000</netOperatingExpenses>
      <marketPricePerShare>5.46000000</marketPricePerShare>
      <netAssetValuePerShare>6.06000000</netAssetValuePerShare>
    </closedEndManagementInvestment>
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      <isIPAReportInternalControl>true</isIPAReportInternalControl>
      <isInfoItem405>true</isInfoItem405>
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    <signature registrantSignedName="EATON VANCE SENIOR INCOME TRUST" signedDate="2022-09-06" signature="James Kirchner" title="Treasurer"/>
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<DOCUMENT>
<TYPE>ITEM 405 REG S-K
<SEQUENCE>2
<FILENAME>NCEN_811-09013_94445459_0622.htm
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<p style="margin-bottom:0in;margin-left:.5in;margin-right:0in;margin-top:0in;"><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;">Based solely upon a review of
the copies of the forms received by Eaton Vance Senior Income Trust and Eaton
Vance Floating-Rate 2022 Target Term Trust (each a Fund and collectively the
Funds), all of the trustees and officers of the Funds, Eaton Vance Management
and its affiliates, and any person who owns more than ten percent of a Fund&#8217;s
outstanding securities have complied with the filings required under Section
16(a) of the Securities Exchange Act of 1934 regarding ownership of shares of
the Funds for the most recent fiscal year end, except that Jill Damon, the
Secretary of each Fund, submitted a Form 3 filing after its due date as a
result of an administrative delay with the Securities and Exchange
Commission.&nbsp; No transactions were reported on this form.</font></p>

<p style="margin:0in;"><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;">&nbsp;</font></p>

<p style="margin:0in;"><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;">&nbsp;</font></p>




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<DOCUMENT>
<TYPE>LEGAL PROCEEDINGS
<SEQUENCE>3
<FILENAME>NCEN_811-09013_42615439_0622.htm
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<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">LEGAL PROCEEDINGS</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">On July 15, 2020, after its Board of Trustees</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">received a demand letter from counsel to Saba</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Capital Management, L.P. and a hedge fund it</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">advises (together &quot;Saba&quot;), Eaton Vance Senior</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Income Trust (&quot;EVF&quot;) filed a complaint against</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Saba in Suffolk County Superior Court in</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Massachusetts seeking a declaratory judgment</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">as to the validity of an amendment to its by-</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">laws requiring trustee nominees in contested</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">elections to obtain affirmative votes of a</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">majority of eligible shares in order to be elected.</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Saba subsequently answered this complaint and</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">asserted counterclaims for breach of contract</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">and fiduciary duty against EVF and certain</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">affiliates of EVF, including Eaton Vance Senior</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Floating-Rate Trust (&quot;EFR&quot;), Eaton Vance</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Floating-Rate Income Trust (&quot;EFT&quot;), Eaton Vance</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Limited Duration Income Trust (&quot;EVV&quot;) and</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">Eaton Vance Management, as well as the Board.</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">The answer and counterclaims seek, with</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">respect to each registered fund named as a</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">counterclaim defendant, rescission of the</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">above-referenced by-law provision, other by-</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">law provisions related to &quot;control share&quot;</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">acquisitions and related relief. On March 31,</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">2021, the court allowed in part and denied in</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">part a motion to dismiss Saba's</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">counterclaims.&nbsp; On April 26, 2021, EFR, EFT and</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">EVV filed counterclaims against Saba seeking</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">declaratory judgment as to the validity of the</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">above-referenced by-law amendments. The</font></p>

<p style="margin:0in;"><font color=black face="courier new" lang=EN-US style="font-size:10.0pt;">case number is 2084-cv-01533-BLS2.</font></p>

<p style="margin:0in;"><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;">&nbsp;</font></p>




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<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>4
<FILENAME>NCEN_811-09013_76816521_0622.htm
<TEXT>

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<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">REPORT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</font></b></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">To the Trustees and
Shareholders of Eaton Vance Senior Income Trust:</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">In planning and
performing our audit of the financial statements of Eaton Vance Senior Income Trust
(the &quot;Trust&quot;) as of and for the year ended June 30, 2022, in
accordance with the standards of the Public Company Accounting Oversight Board
(United States) (PCAOB), we considered the Trust's internal control over
financial reporting, including controls over safeguarding securities, as a
basis for designing our auditing procedures for the purpose of expressing our
opinion on the financial statements and to comply with the requirements of Form
N-CEN, but not for the purpose of expressing an opinion on the effectiveness of
the Trust's internal control over financial reporting. Accordingly, we express
no such opinion.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">The management of the Trust
is responsible for establishing and maintaining effective internal control over
financial reporting. In fulfilling this responsibility, estimates and judgments
by management are required to assess the expected benefits and related costs of
controls. A trust's internal control over financial reporting is a process
designed to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A trust's internal
control over financial reporting includes those policies and procedures that
(1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of
the trust; (2) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in accordance with
generally accepted accounting principles, and that receipts and expenditures of
the trust are being made only in accordance with authorizations of management and
trustees of the trust; and (3) provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition, use, or disposition
of a trust's assets that could have a material effect on the financial
statements.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">Because of its inherent
limitations, internal control over financial reporting may not prevent or
detect misstatements. Also, projections of any evaluation of effectiveness to
future periods are subject to the risk that controls may become inadequate
because of changes in conditions or that the degree of compliance with the
policies or procedures may deteriorate.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">A deficiency in
internal control over financial reporting exists when the design or operation
of a control does not allow management or employees, in the normal course of
performing their assigned functions, to prevent or detect misstatements on a
timely basis. A material weakness is a deficiency, or a combination of
deficiencies, in internal control over financial reporting, such that there is
a reasonable possibility that a material misstatement of the trust's annual or
interim financial statements will not be prevented or detected on a timely
basis. </font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">Our consideration of
the Trust's internal control over financial reporting was for the limited
purpose described in the first paragraph and would not necessarily disclose all
deficiencies in internal control that might be material weaknesses under
standards established by the PCAOB. However, we noted no deficiencies in the Trust's
internal control over financial reporting and its operation, including controls
for safeguarding securities, that we consider to be a material weakness, as
defined above, as of June 30, 2022. </font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">This report is intended
solely for the information and use of management and the Trustees of Eaton Vance
Senior Income Trust and the Securities and Exchange Commission and is not
intended to be and should not be used by anyone other than these specified
parties.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">/s/ Deloitte &amp;
Touche LLP</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">Boston, Massachusetts</font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:115%;">August 18, 2022</font></p>




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