-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OxzBbYK6RYsXRnaca6LxlBblRQPvmTale6H1Z7RcdJSvEujUc8mXsdln3UeIMzUh
 9m/g4fFOr+XQqa97vLV4XA==

<SEC-DOCUMENT>0001209191-06-009849.txt : 20060213
<SEC-HEADER>0001209191-06-009849.hdr.sgml : 20060213
<ACCEPTANCE-DATETIME>20060213161118
ACCESSION NUMBER:		0001209191-06-009849
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060201
FILED AS OF DATE:		20060213
DATE AS OF CHANGE:		20060213

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TYLER TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000860731
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				752303920
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1400
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		9727133700

	MAIL ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1400
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TYLER CORP /NEW/
		DATE OF NAME CHANGE:	19930328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TYLER THREE INC
		DATE OF NAME CHANGE:	19600201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MSD CAPITAL L P
		CENTRAL INDEX KEY:			0001105497
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		06603804

	BUSINESS ADDRESS:	
		STREET 1:		645 FIFTH AVENUE 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-5910
		BUSINESS PHONE:		2123031650

	MAIL ADDRESS:	
		STREET 1:		645 FIFTH AVENUE 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-5910

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MSD Torchlight, L.P.
		CENTRAL INDEX KEY:			0001343838
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		06603803

	BUSINESS ADDRESS:	
		STREET 1:		645 FIFTH AVENUE 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2123031650

	MAIL ADDRESS:	
		STREET 1:		645 FIFTH AVENUE 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>bod32869_bod1msd.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2006-02-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000860731</issuerCik>
        <issuerName>TYLER TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>TYL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001105497</rptOwnerCik>
            <rptOwnerName>MSD CAPITAL L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>645 FIFTH AVENUE, 21ST FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001343838</rptOwnerCik>
            <rptOwnerName>MSD Torchlight, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>645 FIFTH AVENUE, 21ST FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4049923</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This form is filed on behalf of MSD Capital, L.P., a Delaware limited partnership (&quot;MSD&quot;), and MSD Torchlight, L.P., a Delaware limited partnership (&quot;Torchlight&quot;).  Torchlight is the record and beneficial owner of 4,049,923 shares (the &quot;Shares&quot;) of common stock of Tyler Technologies, Inc.  MSD is the general partner of Torchlight, and therefore may be deemed to be the indirect beneficial owner of the Shares.  MSD Capital Management LLC is the general partner of MSD.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>MSD Capital, L.P., By: MSD Capital Management LLC, its general partner, By: /s/ Marc R. Lisker, Manager and General Counsel</signatureName>
        <signatureDate>2006-02-13</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>MSD Torchlight, L.P. By: MSD Capital, L.P., its general partner, By: MSD Capital Management LLC, its general partner,  By: /s/ Marc R. Lisker, Manager and General Counsel</signatureName>
        <signatureDate>2006-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----