<Page>1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 4, 2008 ------------- BCSB BANKCORP, INC. ------------------- (Exact Name of Registrant as Specified in Its Charter) United States 0-24589 52-2108333 - ------------- ----------- ------------- (State or other jurisdiction of (Commission (IRS Employer incorporation or organization) File Number) Identification No.) 4111 E. Joppa Road, Suite 300, Baltimore, Maryland 21236 --------------------------------------------------------- (Address of principal executive offices) (Zip Code) (410) 256-5000 -------------- (Registrant's telephone number, including area code) Not Applicable -------------- (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) <Page>2 Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in ------------------------------------------------------------ Fiscal Year. ------------ (a) On March 4, 2008, the Board of Directors of BCSB Bankcorp, Inc. ("the Company") amended Article II Section 2 of the Company's Bylaws to delay the Company's annual meeting for the fiscal year ended September 30, 2007 to a date within 185 days from the end of the fiscal year. The Company's Bylaws, as amended, are filed as Exhibit 3.2 hereto. On February 6, 2008, the Company had voted to amend its bylaws to delay the Company's annual meeting for the fiscal year ended September 30, 2007 to a date within 270 days from the end of the fiscal year. Based on conversations with Office of Thrift Supervision staff, the Company's Board of Directors on March 4, 2008 voted to amend the Company's bylaws to reduce the 270 day period to 185 days to provide exactly, and no more than, the period of time needed to convene the 2008 annual meeting of stockholders scheduled for April 2, 2008. Item 9.01 Financial Statements and Exhibits. --------------------------------- (d) Exhibits Number Description ------ ----------- 3.2 Bylaws of BCSB Bankcorp, Inc., as amended <Page>3 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized. BCSB BANKCORP, INC. Date: March 5, 2008 By: /s/ Joseph J. Bouffard --------------------------------- Joseph J. Bouffard President, Chief Executive Officer and Director