As filed with the Securities and Exchange Commission on March 15, 2012
REGISTRATION NO. 033-06867
INVESTMENT COMPANY ACT FILE NO. 811-04665

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933     / X /

Pre-Effective Amendment No. _______                                                             /    /

Post-Effective Amendment No. 59                                                                     / X /
and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 / X /

Amendment No. 59

(Check appropriate box or boxes)

COMMONWEALTH INTERNATIONAL SERIES TRUST
(Exact name of Registrant as Specified in the Charter)
791 Town & Country Blvd., Suite 250, Houston, TX 77024
(Address of Principal Executive Offices) (Zip Code)
Registrant’s Telephone Number: 1-713-260-1434

CT Corporation System
155 Federal Street
Boston, MA 02110
(Name and Address of Agent for Service)

with a copy to:

John H. Lively
The Law Offices of John H. Lively & Associates, Inc.
A Member Firm of The 1940 Act Law Group TM
2041 West 141st Terrace, Suite 119
Leawood, KS 66224

It is proposed that this filing will become effective:
/ X /      immediately upon filing pursuant to paragraph (b).
/    /      on (date) pursuant to paragraph (b).
/    /      60 days after filing pursuant to paragraph (a)(1).
/    /      on (date) pursuant to paragraph (a)(1).
/    /      75 days after filing pursuant to paragraph (a)(2).
/    /      on (date) 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.


COMMONWEALTH INTERNATIONAL SERIES TRUST

On Behalf of its Series,

COMMONWEALTH AUSTRALIA/NEW ZEALAND FUND,

AFRICA FUND,

COMMONWEALTH JAPAN FUND,

COMMONWEALTH GLOBAL FUND

COMMONWEALTH REAL ESTATE SECURITIES FUND

________________



EXPLANATORY NOTE



This Post-Effective Amendment No. 59 to the Trust’s Registration Statement on Form N-1A is filed for the sole purpose of submitting the XBRL exhibits for the risk/return summaries first provided in Post-Effective Amendment No. 58 filed on February 28, 2012 and incorporates Parts A, B and C from said amendment.




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SIGNATURES



Pursuant to the requirements of the Securities Act of 1933 (“Securities Act”) and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 59 to its Registration Statement to be signed on its behalf by the undersigned, there unto duly authorized, in the City of Houston, and State of Texas on the 15 th day of March, 2012.

COMMONWEALTH INTERNATIONAL SERIES TRUST
Registrant

By: /s/ Robert W. Scharar
Robert W. Scharar, President

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

Signatures   Title   Date
         
/s/ Robert W. Scharar   President and Trustee   March 15, 2012
Robert W. Scharar   (Principal Executive Officer)    
         
/s/ Terry Gallagher   Treasurer   March 15, 2012
Terry Gallagher   (Principal Financial Officer)    
         
* /s/ John Akard, Jr.   Trustee   March 15, 2012
John Akard, Jr.        
         
* /s/ Kathleen Kelly   Trustee   March 15, 2012
Kathleen Kelly        
         
* /s/ Jack Ewing   Chairman and Trustee   March 15, 2012
Jack H. Ewing        
         
* By:   /s/ Robert W. Scharar       March 15, 2012
           Robert W. Scharar, Attorney-in-Fact        

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

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