-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ECdH8rZYZn6wWjJK19vXQA9jk4L2Z5XTjvNVc4RSL68SK5h/WvTho9hjFwlf1QBl
 7glynqTi0OIDXhZGZGBdAg==

<SEC-DOCUMENT>0001186618-03-000022.txt : 20030728
<SEC-HEADER>0001186618-03-000022.hdr.sgml : 20030728
<ACCEPTANCE-DATETIME>20030728161951
ACCESSION NUMBER:		0001186618-03-000022
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030724
FILED AS OF DATE:		20030728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CMS ENERGY CORP
		CENTRAL INDEX KEY:			0000811156
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				382726431
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		FAIRLANE PLZ S STE 1100
		STREET 2:		330 TOWN CENTER DR
		CITY:			DEARBORN
		STATE:			MI
		ZIP:			48126
		BUSINESS PHONE:		3134369261

	MAIL ADDRESS:	
		STREET 1:		FAIRLANE PLAZA SOUTH, SUITE 1100
		STREET 2:		330 TOWN CENTER DRIVE
		CITY:			DEARBORN
		STATE:			MI
		ZIP:			48126

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BARBA GLENN P
		CENTRAL INDEX KEY:			0001186618
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09513
		FILM NUMBER:		03806310

	BUSINESS ADDRESS:	
		STREET 1:		212 WEST MICHIGAN AVENUE
		CITY:			JACKSON
		STATE:			MI
		ZIP:			49201
		BUSINESS PHONE:		3139829354
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
    <periodOfReport>2003-07-24</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000811156</issuerCik>
        <issuerName>CMS ENERGY CORP</issuerName>
        <issuerTradingSymbol>CMS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001186618</rptOwnerCik>
            <rptOwnerName>BARBA GLENN P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Cont, CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>
  <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
          <value> Common Stock (CMS)</value>
      </securityTitle>
      <transactionDate>
          <value>2003-07-24</value>
      </transactionDate>
      <transactionCoding>
          <transactionFormType>4</transactionFormType>
          <transactionCode>F</transactionCode>
          <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionTimeliness>
      <value />
      </transactionTimeliness>
      <transactionAmounts>
          <transactionShares>
              <value>117</value>
          </transactionShares>
          <transactionPricePerShare>
              <value>6.52</value>
          </transactionPricePerShare>
          <transactionAcquiredDisposedCode>
              <value>D</value>
          </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
          <sharesOwnedFollowingTransaction>
              <value>7480</value>
              <footnoteId id="F1" />
          </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
          <directOrIndirectOwnership>
              <value>D</value>
          </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
  </nonDerivativeTable>
<footnotes>
   <footnote id="F1">Total includes 6,875 directly held shares of Restricted Stock of the Corporation, of which 1,500 shares are nominal (The actual number of nominal shares received will be determined by the passage of time and the achievement of performance objectives under CMS Energy Corporation's Performance Incentive Stock Plan.); 722 directly held shares of Common Stock of the Corporation registered as Glenn P. Barba TOD The Glenn P. Barba Living Trust UA DTD 11/15/99; and options granted for 25,000 shares of Common </footnote>
</footnotes>
    <ownerSignature>
       <signatureName>Glenn  P Barba</signatureName>
       <signatureDate>2003-07-28</signatureDate>
    </ownerSignature>
    <ownerSignature>
       <signatureName>By: MDVanHemert, Attny in Fact</signatureName>
       <signatureDate>2003-07-28</signatureDate>
    </ownerSignature>
</ownershipDocument>

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