UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant x Filed by a Party other than the Registrant ¨

Check the appropriate box:

¨  Preliminary Proxy Statement

¨  Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨  Definitive Proxy Statement

x  Definitive Additional Materials

¨  Soliciting Material Pursuant to §240.14a-12

MBIA Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x  No fee required.

¨  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

(1)  Title of each class of securities to which transaction applies:

(2)  Aggregate number of securities to which transaction applies:

(3)  Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

(4)  Proposed maximum aggregate value of transaction:

(5)  Total fee paid:

¨  Fee paid previously with preliminary materials.

¨  Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

(1)  Amount Previously Paid:

(2)  Form, Schedule or Registration Statement No.:

(3)  Filing Party:

(4)  Date Filed:

***IMPORTANT MESSAGE ABOUT VOTING YOUR SHARES***

Recently, NYSE and SEC rule changes were enacted changing how shares held in brokerage accounts are voted in director elections. If YOU do not vote your shares on proposal one (Election of Directors), your brokerage firm can no longer vote them for you; your shares will remain unvoted. Previously, if your broker did not receive instructions from you, they were permitted to vote your shares for you in director elections. However, starting January 1, 2010, under changes to NYSE Rule 452, brokers will no longer be allowed to vote uninstructed shares.

Therefore, it is very important that you vote your shares for all proposals including the election of directors.

In addition to checking the appropriate boxes on the enclosed vote instruction form, signing and returning it in the enclosed postage paid envelope, there are two additional convenient ways to vote that are available 24 hours a day:

Vote by Internet

Go to website: www.proxyvote.com

Follow these four easy steps:

Read the accompanying Proxy materials.

Go to website www.proxyvote.com.

Have your vote instruction form in hand when you access the website.

Follow the simple instructions.

********* Note **********

When voting online, you may also elect to give your consent to have all future proxy materials delivered to you electronically.

Do not return your vote instruction form if you are voting by Internet or Telephone

Vote by Telephone

Call toll-free on a touch-tone phone in the U.S. or Canada

Follow these four easy steps:

Read the accompanying Proxy materials.

Call the toll-free phone number printed on the enclosed vote instruction form.

Have your vote instruction form in hand when you call the toll-free number.

Follow the recorded instructions:

* Press 1 to vote as the Board recommends * Press 2 to vote each proposal individually