Bank of Montreal (BMO) 40-F/A 2006 FY Annual report (Canada) (amended)

U.S. Securities and Exchange Commission

Washington, D.C. 20549

Form 40-F/A

[Check One]

o Registration statement pursuant to section 12 of the Securities Exchange Act of 1934

or

þ Annual report pursuant to section 13(a) or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended October 31, 2006 Commission File Number 001-133354

BANK OF MONTREAL

(Exact name of Registrant as specified in its charter)

Not Applicable
(Translation of registrant’s name into English (if applicable))

Canada
(Province or other jurisdiction of incorporation or organization)

6029
(Primary Standard Industrial Classification Code Number (if applicable))

Not Applicable
(I.R.S. Employer Identification Number (if applicable))

100 King Street West, 1 First Canadian Place, Toronto, Ontario, Canada M5X 1A1 (416-867-6785)
(Address and Telephone number of Registrant’s principal executive offices)

Paul V. Reagan, Bank of Montreal, 111 West Monroe Street, P.O. Box 755, Chicago, Illinois 60690 (312-461-3167)
(Name, address (including zip code) and telephone number (including area code)
of agent for service in the United States)

Securities registered or to be registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Each Exchange On Which Registered
Common Shares	New York Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the Act:
Not Applicable
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:
Not Applicable
For annual reports, indicate by check mark the information filed with this Form:

þ Annual information form þ Audited annual financial statements

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

Common Shares	500,726,079
Class B Preferred Shares Series 4		8,000,000
Class B Preferred Shares Series 5		8,000,000
Class B Preferred Shares Series 6		10,000,000
Class B Preferred Shares Series 10		12,000,000

Indicate by check mark whether the Registrant by filing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934 (the“Exchange Act”). If “Yes” is marked, indicate the filing number assigned to the Registrant in connection with such Rule.

Yeso 82 — ___ Noþ

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yesþ Noo

TABLE OF CONTENTS

SIGNATURES
EXHIBIT INDEX
Section 302 Certifications of Chief Executive Officer
Section 302 Certifications of Chief Financial Officer
Section 906 Certification

Explanatory Note:
The sole purpose of the filing of this amendment on Form 40-F/A to the annual report on Form 40-F for the year ended October 31, 2006, is to correct the date of the fiscal year covered by the annual report on Form 40-F referenced in the Section 906 Certification to October 31, 2006. This Form 40-F/A does not modify or update disclosures in the original Form 40-F except as described in this explanatory note.

SIGNATURES

     Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this amended annual report to be signed on its behalf by the undersigned, thereto duly authorized.

Registrant: Bank of Montreal
By:	/s/ William A. Downe
	William A. Downe
	President and Chief Executive Officer

Date: November 16, 2007

EXHIBIT INDEX

Exhibits	Description
99.5	Certifications of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
99.6	Certifications of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
99.7	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
		Explanatory Note: The sole purpose of the filing of this amendment on Form 40-F/A to the annual report on Form 40-F for the year ended October 31, 2006, is to correct the date of the fiscal year covered by the annual report on Form 40-F referenced in the Section 906 Certification to October 31, 2006. This Form 40-F/A does not modify or update disclosures in the original Form 40-F except as described in this explanatory note.