Exhibit 23.2 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-134884) pertaining to the Triad Guaranty Inc. 401(k) Profit-Sharing Plan of our report dated June 22, 2006, with respect to the financial statements and schedule of the Triad Guaranty Inc. 401(k) Profit-Sharing Plan included in this Annual Report (Form 11-K) for the year ended December 31, 2005. /s/ Ernst & Young, LLP ---------------------- Greensboro, North Carolina June 22, 2006