Sec Form 4 Filing - WELLS FARGO & COMPANY/MN @ Nuveen AMT-Free Municipal Credit Income Fund - 2019-11-18

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person WELLS FARGO & COMPANY/MN 2. Issuer Name and Ticker or Trading Symbol Nuveen AMT-Free Municipal Credit Income Fund [ NVG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 420 MONTGOMERY STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/18/2019 (Street) SAN FRANCISCO, CA94104 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Adjustable Rate MuniFund Term Preferred Shares 11/18/2019 J( 1 ) 1,120 A 1,120 I By Subsidiary ( 3 ) ( 4 ) MuniFund Preferred Shares 2,054 ( 2 ) I By Subsidiary ( 3 ) ( 4 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other WELLS FARGO & COMPANY/MN 420 MONTGOMERY STREET SAN FRANCISCO, CA94104 X Wells Fargo Municipal Capital Strategies, LLC 375 PARK AVENUE NEW YORK, NY10152 X WELLS FARGO BANK N A 101 NORTH PHILLIPS AVENUE SIOUX FALLS, SD57104 X Signatures WELLS FARGO & COMPANY, /s/ Patricia Arce 11/20/2019 Signature of Reporting Person Date WELLS FARGO MUNICIPAL CAPITAL STRATEGIES, LLC, /s/ Adam Joseph 11/20/2019 Signature of Reporting Person Date WELLS FARGO BANK, NATIONAL ASSOCIATION, /s/ Adam Joseph 11/20/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In connection with the reorganization of Nuveen Connecticut Quality Municipal Income Fund into Nuveen AMT-Free Municipal Credit Income Fund (the "Issuer"), 1,120 adjustable rate munifund term preferred shares beneficially owned by Wells Fargo Municipal Capital Strategies, LLC ("Capital Strategies") were exchanged for an equal number of adjustable rate munifund term preferred shares ("AMTP Shares"), Series 2028, of the Issuer in a cashless transaction. The 1,120 AMTP Shares reported as acquired in Table I represent AMTP Shares beneficially owned by Capital Strategies. ( 2 )In addition to the 1,120 AMTP Shares owned by Capital Strategies, Wells Fargo Bank, National Association ("WFBNA") holds 2,054 munifund preferred shares ("MFP Shares") of the Issuer. The 2,054 MFP Shares were previously acquired by WFBNA as reported in the Form 4 filings filed by Wells Fargo & Company ("Wells Fargo") and WFBNA with the United States Securities and Exchange Commission filed January 31, 2019 and April 5, 2019. ( 3 )This statement is jointly filed by Wells Fargo, Capital Strategies and WFBNA. Wells Fargo holds an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiaries Capital Strategies and WFBNA. Capital Strategies and WFBNA are each indirect wholly owned subsidiaries of Wells Fargo. Following additional issuances of securities by the Issuer, none of Wells Fargo, WFBNA, or WFMCS currently hold more than 10% of the class of securities of the Issuer. ( 4 )Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the US Securities Exchange Act of 1934 or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group with respect to the Issuer or any securities of the Issuer.

Remarks: Exhibits IndexExhibit 99.1 - Joint Filing AgreementExhibit 99.2 - Joint Filer Information

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