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Exhibit 99.40

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors of IAMGOLD Corporation

We consent to the inclusion in this annual report on Form 40-F/A of our auditors' report on the restated Reconciliation with United States Generally Accepted Accounting Principles—Item 17 dated March 30, 2007, except for notes 1 and 2(a), which are as of March 3, 2009, which is contained in or incorporated by reference in this annual report on Form 40-F/A of the Company for the fiscal year ended December 31, 2006.

We also consent to the incorporation by reference of the above report in the registration statement (No. 333-142127) on Form S-8.

/s/ KPMG LLP

Chartered Accountants, Licensed Public Accountants

Toronto, Canada

March 3, 2009

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Exhibit 99.40

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM