    <SEC-DOCUMENT>0001047469-19-001310-index.html : 20190315
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    <ACCEPTANCE-DATETIME>20190315155652
    ACCESSION NUMBER:		0001047469-19-001310
    CONFORMED SUBMISSION TYPE:	N-2
    PUBLIC DOCUMENT COUNT:		8
    FILED AS OF DATE:		20190314
    DATE AS OF CHANGE:		20190315

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			New Mountain Finance Corp
    		CENTRAL INDEX KEY:			0001496099
    		IRS NUMBER:				272978010
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		N-2
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-230326
    		FILM NUMBER:		19684964

    	BUSINESS ADDRESS:
    		STREET 1:		787 SEVENTH AVENUE, 48TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    		BUSINESS PHONE:		(212) 720-0300

    	MAIL ADDRESS:
    		STREET 1:		787 SEVENTH AVENUE, 48TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	New Mountain Guardian Corp
    		DATE OF NAME CHANGE:	20100706
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-2
    <SEQUENCE>1
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    <DESCRIPTION>N-2
    <TEXT>
    Document 1 - file: a2237814zn-2.htm

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    <DESCRIPTION>EX-99.(D)(5)
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    <SEQUENCE>3
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    <DESCRIPTION>EX-99.(N)(1)
    <TEXT>
    Document 3 - file: a2237814zex-99_n1.htm

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    <TYPE>EX-99.(N)(2)
    <SEQUENCE>4
    <FILENAME>a2237814zex-99_n2.htm
    <DESCRIPTION>EX-99.(N)(2)
    <TEXT>
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    <DESCRIPTION>G977294.JPG
    <TEXT>
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    <SEQUENCE>7
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    <DESCRIPTION>G52812MQ03I001.GIF
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    <SEQUENCE>8
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