NASB Financial, Inc. NEWS RELEASE Contact: Rhonda Nyhus Vice President 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 (February 6, 2006) - NASB Financial, Inc. (NASDAQ: NASB) announced today net income for the quarter ended December 31, 2005, of $5,209,000 or $0.62 per share. This compares to net income of $6,439,000 or $0.77 per share for the quarter ended September 30, 2005, and compares to net income of $6,919,000 or $0.82 per share for the quarter ended December 31, 2004. The decrease in earnings for the quarter ended December 31, 2005, was primarily the result of lower mortgage lending volumes and changes in the interest rate environment. During the quarter ended December 31, 2005, the company paid a quarterly dividend on common stock of $0.225 per share and a special dividend of $0.225 per share. During the quarter ended December 31, 2004, the company paid a quarterly dividend on common stock of $0.20 per share and a special dividend of $0.80 per share. 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. (Financial Highlights Schedule Attached) <page> <Table> <Caption> NASB Financial, Inc. Financial Highlights (Dollars in thousands, except per share data) Three months ended ------------------------------------- 12/31/05 9/30/05 12/31/04 ------------------------------------- EARNINGS DATA: Net interest income $ 12,260 12,216 13,232 Provision for loan losses 65 105 167 Non-interest income 5,841 9,094 6,504 Non-interest expense 9,897 11,145 8,673 Income tax expense 2,930 3,621 3,977 ------- ------- ------- Net income $ 5,209 6,439 6,919 ======= ======= ======= FINANCIAL CONDITION DATA: Total assets $ 1,552,886 1,556,344 1,417,560 Total loans and mortgage-backed and related securities 1,438,684 1,450,377 1,325,082 Customer and brokered deposit accounts 848,105 802,694 679,044 Stockholders' equity 149,578 148,887 137,886 FINANCIAL RATIOS AND PER SHARE DATA: Book value per share $ 17.77 17.65 16.31 Earnings per share 0.62 0.77 0.82 Cash dividends paid per share 0.45 0.225 1.00 Return on assets (annualized net income divided by total average assets) 1.34% 1.68% 1.99% Return on equity (annualized net income divided by average stockholder's equity) 13.96% 17.51% 19.99% Weighted average shares outstanding 8,434,562 8,444,371 8,455,442 </Table> <Page>