-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 VPwODEftOWBcZkojGtOiuk4SpyWTYoGw5fUtX3cOW6btK6cf7DKM4G9HdwNVMU9j
 YsKRBs5gWilAtn/+kXJrWg==

<SEC-DOCUMENT>0000904896-08-000060.txt : 20081031
<SEC-HEADER>0000904896-08-000060.hdr.sgml : 20081031
<ACCEPTANCE-DATETIME>20081031160211
ACCESSION NUMBER:		0000904896-08-000060
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081029
FILED AS OF DATE:		20081031
DATE AS OF CHANGE:		20081031

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			N-VIRO INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0000904896
		STANDARD INDUSTRIAL CLASSIFICATION:	PATENT OWNERS & LESSORS [6794]
		IRS NUMBER:				341741211
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3450 W CENTRAL AVE
		STREET 2:		STE 328
		CITY:			TOLEDO
		STATE:			OH
		ZIP:			43606
		BUSINESS PHONE:		4195356374

	MAIL ADDRESS:	
		STREET 1:		3450 WEST CENTRAL AVENUE SUITE 328
		CITY:			TOLEDO
		STATE:			OH
		ZIP:			43606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DiPrete R. Francis
		CENTRAL INDEX KEY:			0001242789

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21802
		FILM NUMBER:		081154624

	BUSINESS ADDRESS:	
		STREET 1:		N-VIRO INTERNATIONAL CORP.
		STREET 2:		3450 W. CENTRAL AVE.
		CITY:			TOLEDO
		STATE:			OH
		ZIP:			43606
		BUSINESS PHONE:		401-647-3177

	MAIL ADDRESS:	
		STREET 1:		255 IDE ROAD
		CITY:			SCITUATE
		STATE:			RI
		ZIP:			02857

	FORMER NAME:	
		FORMER CONFORMED NAME:	DIPRETE R FRANCIS
		DATE OF NAME CHANGE:	20030617
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-10-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000904896</issuerCik>
        <issuerName>N-VIRO INTERNATIONAL CORP</issuerName>
        <issuerTradingSymbol>nvic.ob</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001242789</rptOwnerCik>
            <rptOwnerName>DiPrete R. Francis</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>255 IDE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SCITUATE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02857</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, par value $.01</value>
            </securityTitle>
            <transactionDate>
                <value>2008-10-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.71</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15340</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ R. Francis DiPrete</signatureName>
        <signatureDate>2008-10-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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