NASB Financial, Inc. NEWS RELEASE Contact: Keith B. Cox NASB Financial, Inc. 12498 South 71 Highway Grandview, MO 64030 Phone (816) 765-2200 FOR IMMEDIATE RELEASE: NASB Financial, Inc. Announces Financial Results Grandview, Missouri (May 12, 2003) - NASB Financial, Inc. (NASDAQ: NASB) announced today net income for the quarter ended March 31, 2003, of $5,879,000 or $0.70 per share. This compares to net income of $5,055,000 or $0.60 per share for the quarter ended December 31, 2002, and compares to net income of $4,026,000 or $0.48 per share for the quarter ended March 31, 2002. Net income for the six months ended March 31, 2003, was $10,934,000 or $1.30 per share, compared to net income of $9,187,000 or $1.09 per share for the six months ended March 31, 2002. NASB Financial, Inc. is a unitary thrift holding company for North American Savings Bank, F.S.B. ("North American" or the "Bank"). North American operates five offices in greater Kansas City, Missouri and others in Harrisonville, St. Joseph, and Excelsior Springs, Missouri. The Bank also has loan origination offices in Lee's Summit, Springfield, St. Charles and St. Louis, Missouri as well as Overland Park and Leawood, Kansas. On December 19, 2002, NASB Financial, Inc. merger with Community Bancorp, Inc. As a result of the merger, NASB Financial, Inc. acquired assets of $109.9 million and assumed liabilities of $94.3 million. (Financial Highlights Schedule Attached) <page> <Table> <Caption> NASB Financial, Inc. Financial Highlights (Dollars in thousands, except per share data) Three months ended Six months ended ------------------------------------- ----------------------- 3/31/03 12/31/02 3/31/02 3/31/03 3/31/02 ------------------------------------- ----------------------- EARNINGS DATA: Net interest income $ 11,818 11,751 9,625 23,569 18,765 Provision for loan losses 42 18 150 60 491 Non-interest income 4,092 2,325 2,262 6,416 7,322 Non-interest expense 6,309 5,842 5,084 12,151 10,566 Income tax expense 3,680 3,161 2,627 6,840 5,843 ------- ------- ------- ------- ------- Net income $ 5,879 5,055 4,026 10,934 9,187 ======= ======= ======= ======= ======= FINANCIAL CONDITION DATA: Total assets $ 1,112,569 1,106,750 930,643 1,112,569 930,643 Total loans and mortgage-backed and related securities 1,005,600 1,029 042 859,948 1,005,600 859,948 Customer deposit accounts 657,000 617,930 567,643 657,000 567,643 Stockholders' equity 117,567 113,249 100,780 117,567 100,780 FINANCIAL RATIOS AND PER SHARE DATA: Book value per share $ 13.93 13.42 11.98 13.93 11.98 Earnings per share 0.70 0.60 0.48 1.30 1.09 Cash dividends paid per share 0.17 0.15 0.15 0.32 0.275 Return on assets (annualized net income divided by total average assets) 2.12% 1.94% 1.67% 2.09% 1.93% Return on equity (annualized net income divided by average stockholder's equity) 20.38% 18.16% 16.09% 19.27% 18.72% Weighted average shares outstanding 8,438,653 8,425,299 8,412,887 8,433,041 8,460.142 </Table> <Page>