<SEC-DOCUMENT>0001140361-18-017523-index.html : 20180406
<SEC-HEADER>0001140361-18-017523.hdr.sgml : 20180406
<ACCEPTANCE-DATETIME>20180406080029
ACCESSION NUMBER:		0001140361-18-017523
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20180522
FILED AS OF DATE:		20180406
DATE AS OF CHANGE:		20180406
EFFECTIVENESS DATE:		20180406

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NBT BANCORP INC
		CENTRAL INDEX KEY:			0000790359
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				161268674
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14703
		FILM NUMBER:		18741916

	BUSINESS ADDRESS:	
		STREET 1:		52 S BROAD ST
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
		BUSINESS PHONE:		6073372265

	MAIL ADDRESS:	
		STREET 1:		52 S. BROAD STREET
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>formdef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: formdef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image00002.jpg
<TEXT>
Document 2 - file: image00002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image00003.jpg
<TEXT>
Document 3 - file: image00003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image00004.jpg
<TEXT>
Document 4 - file: image00004.jpg

</DOCUMENT>
</SEC-DOCUMENT>