UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of ~~the~~Report ~~Securities~~(Date ~~Exchange~~of ~~Act~~earliest ofevent ~~1934~~reported): February 9, 2023 (February 8, 2023)

~~Date~~Nuveen ofMunicipal ~~Report~~Credit ~~(Date~~Income ofFund ~~earliest event reported): February 25, 2022 (February 24, 2022)~~

NUVEEN MUNICIPAL CREDIT INCOME FUND

(Exact name of registrant as specified in its charter)

Massachusetts	811-10345	36-4460811
(State or other jurisdictionof incorporation)	(CommissionFile Number)	(I.R.S. EmployerIdentification No.)
(State or other jurisdiction of incorporation)	(CommissionFile Number)	(I.R.S. Employer Identification No.)

333 West Wacker Drive Chicago, Illinois	60606
333 West Wacker DriveChicago, Illinois		60606
(Address of principal executive offices)	~~(Zip Code)~~	(Zip Code)

Registrant’s telephone number, including area code: (800) 257-8787

(Former name or former address, if changed since last report) : N/A

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐☒ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b))

☐ Pre-commencement communications pursuant to Rule ~~13e~~20e-4(c) under the Exchange Act (17 CFR 240.1320e-4(c))

~~Title~~Securities ofregistered ~~each~~pursuant ~~class~~to ~~Trading Symbol~~Section 12(sb) ~~Name~~ of ~~each~~the ~~exchange~~Act: ~~on which registered Common Stock NZF New York Stock Exchange~~


Title of each class	Trading symbol(s)	Name of exchange of which registered
Common Shares of Beneficial Interest	NZF	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 78.01. ~~Regulation~~Other ~~FD Disclosure~~Events.

~~Amendment~~At a Special Meeting of ~~By-Laws.~~Shareholders Onon February 24 8, ~~2022~~2023, the ~~Board~~common ofand ~~Trustees~~preferred shareholders of Nuveen Ohio Municipal ~~Credit~~Quality Income Fund (NYSE: NUO), voting together as a ~~registered~~single ~~closed-end management~~class, ~~investment~~NUO’s ~~company~~preferred (shareholders, voting as a separate class, and the “preferred shareholders of Nuveen Municipal Credit Income Fund” (NYSE: NZF), ~~adopted~~voting ~~Amendment~~as Noa separate class, approved the proposed merger between NUO and NZF. 1While (NZF’s preferred shareholders also approved the ~~“Amendment”~~proposed merger between NZF and Nuveen Georgia Municipal Quality Income Fund (NYSE: NKG), toand the ~~Amended~~shareholders ~~and~~of ~~Restated~~NKG ~~By-Laws~~voted to elect Board Members at that fund’s Annual Meeting of ~~the~~Shareholders, ~~Fund.~~NKG ~~The~~adjourned ~~Amendment~~its isAnnual ~~attached~~Meeting ~~hereto~~of asShareholders ~~Exhibit~~with ~~3.1~~respect to the proposal to approve the proposed merger between NKG and isNZF ~~incorporated~~to ~~herein~~permit bythe further solicitation of proxies necessary to obtain shareholder approvals for that ~~reference~~proposal.

OnConsummation ~~February 24,~~of ~~2022,~~ the ~~Fund~~merger ~~issued~~between aNUO ~~press~~and ~~release~~NZF inis ~~connection~~not ~~with~~contingent on NKG’s approval of the ~~adoption~~merger between NKG and NZF. Additional details on the expected closing date of the ~~Amendment~~merger will be announced at a later date.

~~Item~~SIGNATURES ~~9.01 Financial Statements and Exhibits.~~

~~(d)~~Pursuant ~~Exhibits~~to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

NUVEEN MUNICIPAL CREDIT INCOME FUND By: /s/ David J. Lamb Name: David J. Lamb Title: Chief Administrative Officer

DATE: February 25, 2022

Amendment No. 1 to Amended and Restated By-Laws

NUVEEN MUNICIPAL CREDIT INCOME FUND

Press Release, dated February 24, 2022

Date: February 9, 2023

/s/ Mark L. Winget

Mark L. Winget

Vice President and Secretary

Filing Compare · Nuveen Municipal Credit Income Fund