<SEC-DOCUMENT>0001510281-22-000098.txt : 20220513
<SEC-HEADER>0001510281-22-000098.hdr.sgml : 20220513
<ACCEPTANCE-DATETIME>20220513132618
ACCESSION NUMBER:		0001510281-22-000098
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220510
FILED AS OF DATE:		20220513
DATE AS OF CHANGE:		20220513

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Saba Capital Management, L.P.
		CENTRAL INDEX KEY:			0001510281
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07410
		FILM NUMBER:		22921575

	BUSINESS ADDRESS:	
		STREET 1:		405 LEXINGTON AVENUE
		STREET 2:		58TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10174
		BUSINESS PHONE:		212-542-4635

	MAIL ADDRESS:	
		STREET 1:		405 LEXINGTON AVENUE
		STREET 2:		58TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10174

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Weinstein Boaz
		CENTRAL INDEX KEY:			0001608233

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07410
		FILM NUMBER:		22921574

	MAIL ADDRESS:	
		STREET 1:		405 LEXINGTON AVENUE
		STREET 2:		58TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10174

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Delaware Investments National Municipal Income Fund
		CENTRAL INDEX KEY:			0000895574
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				411737161
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0330

	BUSINESS ADDRESS:	
		STREET 1:		100 INDEPENDENCE
		STREET 2:		610 MARKET STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19106-2354
		BUSINESS PHONE:		18005231918

	MAIL ADDRESS:	
		STREET 1:		100 INDEPENDENCE
		STREET 2:		610 MARKET STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19106-2354

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DELAWARE INVESTMENTS FLORIDA INSURED MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	20020327

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VOYAGEUR FLORIDA INSURED MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	19930519

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VOYAGEUR FLORIDA INSURD MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	19930122
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-05-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000895574</issuerCik>
        <issuerName>Delaware Investments National Municipal Income Fund</issuerName>
        <issuerTradingSymbol>VFL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001510281</rptOwnerCik>
            <rptOwnerName>Saba Capital Management, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>405 LEXINGTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>58TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001608233</rptOwnerCik>
            <rptOwnerName>Weinstein Boaz</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>405 LEXINGTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>58TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-05-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>71627</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.48</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2992518</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>-</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-05-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11660</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.46</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3004178</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>-</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-05-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>116891</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.41</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3121069</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>-</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>William Manzolillo</signatureName>
        <signatureDate>2022-05-13</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Boaz Weinstein</signatureName>
        <signatureDate>2022-05-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
