<SEC-DOCUMENT>0001496099-21-000003-index.html : 20210224
<SEC-HEADER>0001496099-21-000003.hdr.sgml : 20210224
<ACCEPTANCE-DATETIME>20210224170124
ACCESSION NUMBER:		0001496099-21-000003
CONFORMED SUBMISSION TYPE:	10-K
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210224
DATE AS OF CHANGE:		20210224

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:		10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-00832
		FILM NUMBER:		21674556

	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>10-K
<SEQUENCE>1
<FILENAME>nmfc-12312020x10k.htm
<DESCRIPTION>10-K
<TEXT>
Document 1 - file: nmfc-12312020x10k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.9
<SEQUENCE>2
<FILENAME>nmfc-12312020xexhibit49.htm
<DESCRIPTION>EX-4.9
<TEXT>
Document 2 - file: nmfc-12312020xexhibit49.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>nmfc-12312020xexhibit231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: nmfc-12312020xexhibit231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>4
<FILENAME>nmfc-12312020xexhibit311.htm
<DESCRIPTION>EX-31.1
<TEXT>
Document 4 - file: nmfc-12312020xexhibit311.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>5
<FILENAME>nmfc-12312020xexhibit312.htm
<DESCRIPTION>EX-31.2
<TEXT>
Document 5 - file: nmfc-12312020xexhibit312.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>6
<FILENAME>nmfc-12312020xexhibit321.htm
<DESCRIPTION>EX-32.1
<TEXT>
Document 6 - file: nmfc-12312020xexhibit321.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>7
<FILENAME>nmfc-12312020xexhibit322.htm
<DESCRIPTION>EX-32.2
<TEXT>
Document 7 - file: nmfc-12312020xexhibit322.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>8
<FILENAME>nmfc-12312020xexhibit991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 8 - file: nmfc-12312020xexhibit991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>chart-0342d9fa18b8475ba791a.jpg
<DESCRIPTION>CHART
<TEXT>
Document 9 - file: chart-0342d9fa18b8475ba791a.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>deloittelogoa241a.jpg
<DESCRIPTION>DELOITTE LOGO
<TEXT>
Document 10 - file: deloittelogoa241a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>image_01.jpg
<DESCRIPTION>DELOITTE LOGO
<TEXT>
Document 11 - file: image_01.jpg

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