-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 J6DxCQhckq+qlhnM5fC6vl7P8HAnbibcEKyGW0yCIu0YD5kha7k8JA/BcKFwpa+Y
 i4y90gNtOwYtjTXSaIU6EQ==

<SEC-DOCUMENT>0000720671-03-000045.txt : 20030725
<SEC-HEADER>0000720671-03-000045.hdr.sgml : 20030725
<ACCEPTANCE-DATETIME>20030725151952
ACCESSION NUMBER:		0000720671-03-000045
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030723
FILED AS OF DATE:		20030725

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HEWITT THOMAS L
		CENTRAL INDEX KEY:			0001198424

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08964
		FILM NUMBER:		03803526

	BUSINESS ADDRESS:	
		STREET 1:		2339 49TH ST NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20007
		BUSINESS PHONE:		2023381944

	MAIL ADDRESS:	
		STREET 1:		2339 49TH STREET NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20007
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-23</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198424</rptOwnerCik>
            <rptOwnerName>HEWITT THOMAS L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Halifax Corporation Common Stock</value>
        </securityTitle>
        <transactionDate>
            <value>2003-07-23</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>P</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>24331</value>
            </transactionShares>
            <transactionValue>
                <value>4.11</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>29331</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Options for Halifax Corporation Common Stock</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>4.11</value>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-07-23</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>P</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>2000</value>
            </transactionShares>
            <transactionValue>
                <value>4.11</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>2003-07-24</value>
            <footnoteId id="F1"/>
        </exerciseDate>
        <expirationDate>
            <value>2013-07-24</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Halifax Corporation Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>2000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>12000</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Warrants for Halifax Corporation Common Stock</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>4.11</value>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-07-23</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>P</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>4866</value>
            </transactionShares>
            <transactionValue>
                <value>4.11</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>2003-07-24</value>
        </exerciseDate>
        <expirationDate>
            <value>2013-07-24</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Halifax Corporation Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>4866</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>16866</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">1/12 A MONTH FOR 1 YEAR</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Thomas L. Hewitt</signatureName>
        <signatureDate>2003-07-24</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----