-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001333017-08-000001.txt : 20080229
<SEC-HEADER>0001333017-08-000001.hdr.sgml : 20080229
<ACCEPTANCE-DATETIME>20080229171358
ACCESSION NUMBER:		0001333017-08-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080228
FILED AS OF DATE:		20080229
DATE AS OF CHANGE:		20080229

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERCO /NV/
		CENTRAL INDEX KEY:			0000004457
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-AUTO RENTAL & LEASING (NO DRIVERS) [7510]
		IRS NUMBER:				880106815
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0905

	BUSINESS ADDRESS:	
		STREET 1:		1325 AIRMOTIVE WAY STE 100
		CITY:			RENO
		STATE:			NV
		ZIP:			89502
		BUSINESS PHONE:		7756886300

	MAIL ADDRESS:	
		STREET 1:		1325 AIRMOTIVE WAY
		STREET 2:		SUITE 100
		CITY:			RENO
		STATE:			NV
		ZIP:			89502

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERCO
		DATE OF NAME CHANGE:	19770926

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Berg Jason Allen
		CENTRAL INDEX KEY:			0001333017

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11255
		FILM NUMBER:		08656936

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		602-820-4368

	MAIL ADDRESS:	
		STREET 1:		1238 E. EUGIE AVENUE
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-02-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000004457</issuerCik>
        <issuerName>AMERCO /NV/</issuerName>
        <issuerTradingSymbol>UHAL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001333017</rptOwnerCik>
            <rptOwnerName>Berg Jason Allen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2727 N CENTRAL AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PHOENIX</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Acctng Officer of AMERCO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series A 8 1/2 % Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-02-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series A 8 1/2 % Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-02-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Jason A. Berg</signatureName>
        <signatureDate>2008-02-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----