<SEC-DOCUMENT>0001133228-24-000526-index.html : 20240126
<SEC-HEADER>0001133228-24-000526.hdr.sgml : 20240126
<ACCEPTANCE-DATETIME>20240126172353
ACCESSION NUMBER:		0001133228-24-000526
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		37
FILED AS OF DATE:		20240126
DATE AS OF CHANGE:		20240126
EFFECTIVENESS DATE:		20240201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Natixis Funds Trust I
		CENTRAL INDEX KEY:			0000770540
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04323
		FILM NUMBER:		24569113

	BUSINESS ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-449-2810

	MAIL ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IXIS Advisor Funds Trust I
		DATE OF NAME CHANGE:	20050502

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDC NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20010503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20000202

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Natixis Funds Trust I
		CENTRAL INDEX KEY:			0000770540
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-98326
		FILM NUMBER:		24569112

	BUSINESS ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-449-2810

	MAIL ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IXIS Advisor Funds Trust I
		DATE OF NAME CHANGE:	20050502

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDC NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20010503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20000202
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000006660
<SERIES-NAME>Loomis Sayles Core Plus Bond Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018168
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NEFRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018170
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>NECRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018171
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>NERYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000125481
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>NERNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000188560
<CLASS-CONTRACT-NAME>Class T
<CLASS-CONTRACT-TICKER-SYMBOL>LCPTX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>nfti-html7129_485bpos.htm
<DESCRIPTION>NATIXIS FUNDS TRUST I - 485BPOS
<TEXT>
Document 1 - file: nfti-html7129_485bpos.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(D)(1)(IV)
<SEQUENCE>2
<FILENAME>nfti-html7129_ex99d1iv.htm
<DESCRIPTION>ADDENDUM DATED JULY 1, 2023 TO ADVISORY AGREEMENT DATED OCTOBER 30, 2000 BETWEEN REGISTRANT ON BEHALF OF NATIXIS U.S. EQUITY OPPORTUNITIES FUND AND NATIXIS ADVISORS
<TEXT>
Document 2 - file: nfti-html7129_ex99d1iv.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(D)(2)(V)
<SEQUENCE>3
<FILENAME>nfti-html7129_ex99d2v.htm
<DESCRIPTION>AMENDMENT DATED JULY 1, 2023 TO SUB-ADVISORY AGREEMENT DATED OCTOBER 30, 2000 AMONG REGISTRANT ON BEHALF OF NATIXIS U.S. EQUITY OPPORTUNITIES FUND, NATIXIS ADVISORS AND HARRIS ASSOCIATES
<TEXT>
Document 3 - file: nfti-html7129_ex99d2v.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(E)(8)
<SEQUENCE>4
<FILENAME>nfti-html7129_ex99e8.htm
<DESCRIPTION>FORM OF DEALER AGREEMENT USED BY NATIXIS DISTRIBUTION
<TEXT>
Document 4 - file: nfti-html7129_ex99e8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(1)(VIII)
<SEQUENCE>5
<FILENAME>nfti-html7129_ex99h1viii.htm
<DESCRIPTION>AMENDMENT DATED OCTOBER 1, 2023 TO THE TRANSFER AGENCY AND SERVICES AGREEMENT DATED OCTOBER 1, 2005
<TEXT>
Document 5 - file: nfti-html7129_ex99h1viii.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(3)(I)
<SEQUENCE>6
<FILENAME>nfti-html7129_ex99h3i.htm
<DESCRIPTION>FEE WAIVER/EXPENSE REIMBURSEMENT UNDERTAKING DATED JANUARY 31, 2024 BETWEEN LOOMIS SAYLES AND THE REGISTRANT, ON BEHALF OF LOOMIS SAYLES CORE PLUS BOND FUND
<TEXT>
Document 6 - file: nfti-html7129_ex99h3i.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(3)(IV)
<SEQUENCE>7
<FILENAME>nfti-html7129_ex99h3iv.htm
<DESCRIPTION>EXPENSE REIMBURSEMENT UNDERTAKING OF TRANSFER AGENCY EXPENSES FOR CLASS N SHARES DATED JUNE 8, 2023
<TEXT>
Document 7 - file: nfti-html7129_ex99h3iv.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(3)(V)
<SEQUENCE>8
<FILENAME>nfti-html7129_ex99h3v.htm
<DESCRIPTION>EXPENSE REIMBURSEMENT UNDERTAKINGS OF TRANSFER AGENCY EXPENSES FOR CLASS N SHARES FOR CERTAIN ACCOUNTS DATED JUNE 30, 2023, BETWEEN NATIXIS ADVISORS AND THE REGISTRANT
<TEXT>
Document 8 - file: nfti-html7129_ex99h3v.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(4)(XLII)
<SEQUENCE>9
<FILENAME>nfti-html7129_ex99h4xlii.htm
<DESCRIPTION>FORTY-FIRST AMENDMENT DATED JUNE 28, 2023, TO THE ADMINISTRATIVE SERVICES AGREEMENT
<TEXT>
Document 9 - file: nfti-html7129_ex99h4xlii.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(H)(4)(XLIII)
<SEQUENCE>10
<FILENAME>nfti-html7129_ex99h4xliii.htm
<DESCRIPTION>FORTY-SECOND AMENDMENT DATED DECEMBER 13, 2023, TO THE ADMINISTRATIVE SERVICES AGREEMENT
<TEXT>
Document 10 - file: nfti-html7129_ex99h4xliii.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(J)(I)
<SEQUENCE>11
<FILENAME>nfti-html7129_ex99ji.htm
<DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR LOOMIS SAYLES CORE PLUS BOND FUND
<TEXT>
Document 11 - file: nfti-html7129_ex99ji.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(O)(2)
<SEQUENCE>12
<FILENAME>nfti-html7129_ex99o2.htm
<DESCRIPTION>CODE OF ETHICS AS AMENDED APRIL 2023 FOR NATIXIS ADVISORS, LLC AND NATIXIS DISTRIBUTION, LLC
<TEXT>
Document 12 - file: nfti-html7129_ex99o2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(O)(4)
<SEQUENCE>13
<FILENAME>nfti-html7129_ex99o4.htm
<DESCRIPTION>CODE OF ETHICS DATED SEPTEMBER 30, 2005, AS AMENDED JANUARY 20, 2023 OF HARRIS ASSOCIATES
<TEXT>
Document 13 - file: nfti-html7129_ex99o4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(O)(5)
<SEQUENCE>14
<FILENAME>nfti-html7129_ex99o5.htm
<DESCRIPTION>CODE OF ETHICS DATED MAY 20, 2008, AS AMENDED MAY 1, 2023 OF VAUGHAN NELSON
<TEXT>
Document 14 - file: nfti-html7129_ex99o5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(P)(1)
<SEQUENCE>15
<FILENAME>nfti-html7129_ex99p1.htm
<DESCRIPTION>POWER OF ATTORNEYS TO SIGN FOR EACH TRUSTEE
<TEXT>
Document 15 - file: nfti-html7129_ex99p1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>sai001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: sai001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>pr4397img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: pr4397img001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>pr4397img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: pr4397img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>pr4397img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: pr4397img003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>pr4397img004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 21 - file: pr4397img004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>pr4397img005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 22 - file: pr4397img005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>pr4397img006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 23 - file: pr4397img006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>pr4397img007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 24 - file: pr4397img007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>25
<FILENAME>natixis-20240201.xsd
<DESCRIPTION>XBRL SCHEMA FILE
<TEXT>
Document 25 - file: natixis-20240201.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>26
<FILENAME>natixis-20240201_cal.xml
<DESCRIPTION>XBRL CALCULATION FILE
<TEXT>
Document 26 - file: natixis-20240201_cal.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>27
<FILENAME>natixis-20240201_def.xml
<DESCRIPTION>XBRL DEFINITION FILE
<TEXT>
Document 27 - file: natixis-20240201_def.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>28
<FILENAME>natixis-20240201_lab.xml
<DESCRIPTION>XBRL LABEL FILE
<TEXT>
Document 28 - file: natixis-20240201_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>29
<FILENAME>natixis-20240201_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
Document 29 - file: natixis-20240201_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>30
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 30 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>31
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 31 - file: R2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>32
<FILENAME>nfti-html7129_485bpos_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 32 - file: nfti-html7129_485bpos_htm.html

Document 32 - RAW XML: nfti-html7129_485bpos_htm.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>33
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 33 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>34
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 34 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>35
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 35 - file: FilingSummary.html

Document 35 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>37
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 37 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>38
<FILENAME>0001133228-24-000526-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 38 - file: 0001133228-24-000526-xbrl.zip

</DOCUMENT>
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