EXHIBIT 16 [LETTERHEAD OF ANDERSON ASSOCIATES, LLP] Securities and Exchange Commission 450 5th Street, N.W. Washington, DC 20549 Members of the Commission: We have read and agree with the comments in Item 4 of Form 8-K of BCSB Bankcorp, Inc., dated January 2, 2004. /s/ Anderson Associates, LLP January 2, 2004 Baltimore, Maryland