Securities and Exchange Commission Washington, DC 20549 FORM 10-K/A AMENDMENT NO. 1 [X] Annual Report Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 For the period ended SEPTEMBER 30, 2003 or [ ] Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 0-24033 NASB FINANCIAL, INC. (Exact name of registrant as specified in its charter) Missouri 43-1805201 (State or other jurisdiction of (IRS Employer incorporation or organization) Identification No.) 12498 South 71 Highway, Grandview, Missouri 64030 (Address of principal executive offices) (Zip Code) (816) 765-2200 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: NONE Securities registered pursuant to Section 12(g) of the Act: Common Stock, $0.15 par value Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. [X]Yes [ ] No Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (Section 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [ ] Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). [ ]Yes [X]No The aggregate market value of the voting stock held by non- affiliates of the Registrant, based on the asking price of its Common Stock on March 31, 2003, was approximately $191.5 million. As of December 15, 2003, there were issued and outstanding 8,455,442 shares of the Registrant's common stock. DOCUMENTS INCORPORATED BY REFERENCE 1. Part II - Annual report to Stockholders for the Fiscal Year Ended September 30, 2003. 2. Part III - Proxy Statement for the 2004 Annual Meeting of Stockholders. <Page> This Form 10-K/A is Amendment No. 1 to the Annual Report on Form 10-K filed December 29, 2003 by NASB Financial, Inc. This amendment is filed for the sole purpose of updating the certifications required by Section 302 of the Sarbanes-Oxley Act of 2002. <Page> SIGNATURES Pursuant to the requirements of section 13 or 15 (d) 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. NASB FINANCIAL, INC. By: /s/ David H. Hancock David H. Hancock Chairman Date: March 3, 2004 Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on March 3, 2004, by the following persons on behalf of the Registrant and in the capacities indicated. Signature Title /s/ David H. Hancock Chairman (Chief Executive David H. Hancock Officer) /s/ Rhonda Nyhus Chief Financial Officer Rhonda Nyhus (Principal Accounting Officer) /s/ Keith B. Cox Director Keith B. Cox /s/ Frederick V. Arbanas Director Frederick V. Arbanas /s/ A. Ray Cecrle Director A Ray Cecrle /s/ Barrett Brady Director Barrett Brady /s/ Linda S. Hancock Director Linda S. Hancock /s/ W. Russell Welsh Director W. Russell Welsh <Page> I, David Hancock, Chairman and Chief Executive Officer, certify that: 1. I have reviewed this report on Form 10-K of NASB Financial, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have: a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidate subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and c) disclosed in this report any changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions); a) all significant deficiencies and material weaknesses in the design or operation of internal controls which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal controls over financial reporting. Date: March 3, 2004 <Page> I, Rhonda Nyhus, Vice President and Treasurer, certify that: 1. I have reviewed this report on Form 10-K of NASB Financial, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have: a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidate subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and c) disclosed in this report any changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions); a) all significant deficiencies and material weaknesses in the design or operation of internal controls which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal controls over financial reporting. Date: March 3, 2004 <Page>