Federal Deposit Insurance Reform Conforming Amendments Act of 2005

Establishes a fine for violations of signage requirements pertaining to the insurance logo for insured depository institutions and insured credit unions.

Amends the International Banking Act of 1978 to replace the minimum deposit of $100,000 with a standard maximum deposit insurance amount.

Makes conforming changes to the Federal Credit Union Act. Provides coverage for certain employee benefit plan deposits. Directs the National Credit Union Administration Board to provide pass-through share insurance for the deposits or shares of any employee benefit plan.

(Sec. 3) Makes conforming amendments relating to assessments and repeal of special rules relating to minimum assessments and free deposit insurance.

Amends the Federal Deposit Insurance Corporation Improvement Act of 1991 to remove the Board of Governors of the Federal Reserve System from the requirement to consider certain factors in determining the minimum requirements for lifeline accounts at insured depository institutions. (Thus leaves the Federal Deposit Insurance Corporation (FDIC) with the sole responsibility to consider such factors in determining such minimum requirements.)

(Sec. 4) Defines the "designated reserve ratio" as the reserve ratio designated by the FDIC Board of Directors.

(Sec. 5) Requires a report to Congress on refunds, dividends, and credits from the Deposit Insurance Fund (DIF).

(Sec. 6) Directs the Comptroller General to study and report to Congress on: (1) the efficiency and effectiveness of the administration of the prompt corrective action program by federal banking agencies, including their effectiveness in identifying troubled depository institutions and taking effective action with respect to them, and the degree of accuracy of the risk assessments made by the FDIC; and (2) the appropriateness of the FDIC's organizational structure.

Requires the FDIC Board of Directors and the National Credit Union Administration Board (NCUAB) each to study and report to Congress on the feasibility of: (1) establishing a voluntary deposit insurance system for deposits in excess of the maximum amount of deposit insurance; (2) increasing the limit on deposit insurance for deposits of municipalities and other units of general local government; and (3) privatizing all deposit insurance at insured depository institutions and insured credit unions.

Requires the FDIC to study and report to Congress on the feasibility of: (1) using alternatives to estimated insured deposits in calculating the reserve ratio of the DIF and designating a reserve ratio for it; and (2) the reserve methodology and loss accounting used by the FDIC between January 1, 1992, and December 31, 2004, with respect to insured depository institutions in a troubled condition.

Directs the Comptroller General to study and report to Congress on the potential impact on the U.S. financial system of the implementation of the new Basel Capital Accord (Basel II) and the proposed revisions to current reserve requirement regulations for non-Basel II banks.

(Sec. 7) Directs the FDIC to survey and report biannually to Congress on efforts by insured depository institutions to bring individuals and families who have rarely, if ever, held a checking account, a savings account, or other type of transaction or check cashing account at an insured depository institution (the unbanked) into the conventional finance system.

(Sec. 8) Amends the FDIA to establish the DIF, to be available to the FDIC for use with respect to insured depository institutions whose deposits are DIF-insured.

Prescribes guidelines for borrowing for the DIF from insured depository institutions and Federal Home Loan Banks.

(Sec. 9) Makes technical and conforming amendments to the FDIA and the following Acts relating to the merger of the BIF and SAIF to reflect the changes made by this Act: (1) Revised Statutes of the United States; (2) the Federal Reserve Act; (3) the Federal Home Loan Bank Act; (4) the Home Owners' Loan Act; (5) the National Housing Act; (6)the Financial Institutions Reform, Recovery, and Enforcement Act of 1989; (7) the Gramm-Leach-Bliley Act; and (8) the Bank Holding Company Act of 1956.