Registration No. 2-33043

File No. 811-01512

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM N-1A

REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933	☒
PreEffective Amendment No.	☐
PostEffective Amendment No. 87	☒
and/or
REGISTRATION STATEMENT
UNDER
THE INVESTMENT COMPANY ACT OF 1940	☒
Amendment No. 71	☒

Oppenheimer Capital Income Fund

(Exact Name of Registrant as Specified in Charter)

6803 South Tucson Way, Centennial, Colorado 80112-3924

(Address of Principal Executive Offices) (Zip Code)

(303) 768-3200

(Registrant’s Telephone Number, including Area Code)

Cynthia Lo Bessette, Esq.

OFI Global Asset Management, Inc.

225 Liberty Street, New York, New York 10281-1008

(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box):

☒ immediately upon filing pursuant to paragraph (b)

☐ on                  pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)(1)

☐ on                  pursuant to paragraph (a)(1)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ on                  pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

☐ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York and State of New York on the 13th day of November 2018.

	Oppenheimer Capital Income Fund
By:	Arthur P. Steinmetz*
	Arthur P. Steinmetz Trustee, President and Principal Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities on the dates indicated:

Signatures	Title	Date
Robert J. Malone*	Chairman of the Board of Trustees	November 13, 2018
Robert J. Malone Arthur P. Steinmetz*	Trustee, President and Principal Executive Officer	November 13, 2018
Arthur P. Steinmetz Brian S. Petersen*	Treasurer, Principal Financial & Accounting Officer	November 13, 2018
Brian S. Petersen Andrew J. Donohue*	Trustee	November 13, 2018
Andrew J. Donohue Richard F. Grabish*	Trustee	November 13, 2018
Richard F. Grabish Beverly L. Hamilton*	Trustee	November 13, 2018
Beverly L. Hamilton Victoria J. Herget*	Trustee	November 13, 2018
Victoria J. Herget Karen L. Stuckey*	Trustee	November 13, 2018
Karen L. Stuckey James D. Vaughn*	Trustee	November 13, 2018
James D. Vaughn *By: /s/ Taylor V. Edwards
Taylor V. Edwards, Attorney-in-Fact

EXHIBIT INDEX

Exhibit No.	Description
Ex-101.INS	XBRL Instance Document
Ex-101.SCH	XBRL Taxonomy Extension Schema Document
Ex-101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
Ex-101.DEF	XBRL Taxonomy Extension Definition Linkbase
Ex-101.LAB	XBRL Taxonomy Extension Labels Linkbase
Ex-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document