-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 I3EgV7D4SuboiZrmCUNYo/tfd58TINAtztYl6xNpRUeM1g9yDK+a2LoMSAw8M+8Z
 jDMkPeFtj5MwcX5qh+6RKQ==

<SEC-DOCUMENT>0000720671-05-000008.txt : 20050513
<SEC-HEADER>0000720671-05-000008.hdr.sgml : 20050513
<ACCEPTANCE-DATETIME>20050513121906
ACCESSION NUMBER:		0000720671-05-000008
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050331
FILED AS OF DATE:		20050513
DATE AS OF CHANGE:		20050513

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCURLOCK ARCH C
		CENTRAL INDEX KEY:			0001198709

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08964
		FILM NUMBER:		05827533

	BUSINESS ADDRESS:	
		STREET 1:		7425 WALTON LANE
		CITY:			ANNADALE
		STATE:			VA
		ZIP:			22003
		BUSINESS PHONE:		7035483667

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HALIFAX CORP
		CENTRAL INDEX KEY:			0000720671
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				540829246
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		5250 CHEROKEE AVE
		CITY:			ALEXANDRIA
		STATE:			VA
		ZIP:			22312
		BUSINESS PHONE:		7037502202

	MAIL ADDRESS:	
		STREET 1:		5250 CHEROKEE AVENUE
		CITY:			ALEXANDRIA
		STATE:			VA
		ZIP:			22312

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HALIFAX ENGINEERING INC/VA
		DATE OF NAME CHANGE:	19911204
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2005-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000720671</issuerCik>
        <issuerName>HALIFAX CORP</issuerName>
        <issuerTradingSymbol>HX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198709</rptOwnerCik>
            <rptOwnerName>SCURLOCK ARCH C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5250 CHEROKEE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ALEXANDRIA</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22312</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2004-10-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>W</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>65493</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>82998</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>BY ARCH C. SCURLOCK CHILDREN'S TRUST</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>7% HALIFAX CONVERTIBLE DEBENTURE - DUE 11/07/2008</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.11</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-10-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>W</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>33333</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.11</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2004-10-18</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-11-07</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>HALIFAX COMMON STOCK</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8110</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>33333</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>BY ARCH C. SCURLOCK CHILDREN'S TRUST</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">THE REPORTING PERSON IS REPORTING THE AMOUNT OF THE COMMON STOCK AND THE NUMBER OF SHARES PROPORTIONATE TO THE REPORTING PERSON'S INTEREST IN THE ARCH C. SCURLOCK CHILDREN'S TRUST.  THE REPORTING PERSON DISCLAIMS BENEFICIAL OWNERSHIP OF THESE SECURITIES, AND THIS REPORT SHALL NOT BE DEEMED AN ADMISSION THAT THE REPORTING PERSON IS THE BENEFICIAL OWNER OF SUCH SECURITIES FOR PURPOSES OF SECTION 16 OR FOR ANY OTHER PUSPOSE.</footnote>
        <footnote id="F2">THE REPORTING PERSON IS REPORTING THE AMOUNT OF THE CONVERTIBLE NOTE AND THE NUMBER OF SHARES PROPORTIONATE TO THE REPORTING PERSON'S INTEREST IN THE ARCH C. SCURLOCK CHILDREN'S TRUST.  THE REPORTING PERSON DISCLAIMS BENEFICIAL OWNERSHIP OF THESE SECURITIES, AND THIS REPORT SHALL NOT BE DEEMED AN ADMISSION THAT THE REPORTING PERSON IS THE BENEFICIAL OWNER OF SUCH SECURITIES FOR PURPOSES OF SECTION 16 OR FOR ANY OTHER PURPOSE.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>ARCH C. SCURLOCK, JR</signatureName>
        <signatureDate>2005-05-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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