As filed with the Securities and Exchange Commission on February 15, 2013

Securities Act registration no. 33-38953

Investment Company Act file no. 811-06279

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 x

Post-Effective Amendment No. 45x

and

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 x

Amendment No. 47 x

HARRIS ASSOCIATES INVESTMENT TRUST

(Registrant)

Two North La Salle Street, Suite 500

Chicago, Illinois 60602-3790

Telephone number 312/621-0600

Janet L. Reali	Paulita A. Pike
Harris Associates L.P.	K&L Gates LLP
Two North La Salle Street, #500	70 West Madison Street, #3100
Chicago, Illinois 60602	Chicago, Illinois 60602

(Agents for service)

It is proposed that this filing will become effective:

ximmediately upon filing pursuant to rule 485(b)

oon                            pursuant to rule 485(b)

o60 days after filing pursuant to rule 485(a)(1)

oon                            pursuant to rule 485(a)(1)

o75 days after filing pursuant to rule 485(a)(2)

oon                            pursuant to rule 485(a)(2)

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 of the requirements for effectiveness of this post-effective amendment 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 Chicago and State of Illinois on February 15, 2013.

HARRIS ASSOCIATES INVESTMENT TRUST
By	/s/ Kristi L. Rowsell
	Kristi L. Rowsell, President

Pursuant to the requirements of the Securities Act of 1933, this post-effective amendment to the registration statement has been signed below by the following persons in the capacities and on the date indicated.

Signature	Title	Date
/s/ Michael J. Friduss*	Trustee
Michael J. Friduss
/s/ Thomas H. Hayden*	Trustee
Thomas H. Hayden
/s/ Christine M. Maki*	Trustee
Christine M. Maki
/s/ Allan J. Reich*	Trustee
Allan J. Reich
/s/ Steven S. Rogers*	Trustee	February 15, 2013
Steven S. Rogers
/s/ Burton W. Ruder*	Trustee
Burton W. Ruder
/s/ Peter S. Voss*	Trustee
Peter S. Voss
/s/ Kristi L. Rowsell	Trustee and President (Principal Executive Officer)
Kristi L. Rowsell
/s/ Thomas E. Herman	Principal Financial Officer
Thomas E. Herman

By	/s/ Janet L. Reali
	Janet L. Reali
	Secretary

* Janet L. Reali signs this document on behalf of the individuals noted pursuant to the powers of attorney filed on January 28, 2013 as exhibit (q) to Post-effective Amendment no. 44 on Form N-1A (File No. 33-38953) and incorporated by reference herein.

Index of Exhibits

Exhibit
Number	Exhibits
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase