UNITED STATES
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): May 3, 2011

Southern Michigan Bancorp, Inc.
(Exact Name of Registrant as
Specified in its Charter)

Registrant's telephone number, including area code:  (517) 279-5500

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 (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

                    Southern Michigan Bancorp, Inc. ("Southern") will hold its annual meeting of shareholders on Thursday, May 12, 2011, at 4:00 p.m. local time. At the meeting, the shareholders will (1) vote on the election of four directors; (2) ratify the selection of Clifton Gunderson LLP as independent auditors for 2011; and (3) transact any other business that may properly come before the meeting.

                    Southern is making this meeting accessible to the public by telephone on a listen-only basis. Anyone interested in the meeting may access the meeting on a live basis by dialing toll-free 877-873-8018 and entering 2593837 for the pass code. Southern will make available a slide presentation that will be presented at the annual meeting on its website, www.smb-t.com, beginning on May 12, 2011 and continuing through May 22, 2011.

Forward-Looking Statements

                    It is anticipated that some of the information presented at the annual meeting will contain forward-looking statements that are based on management's beliefs, assumptions, current expectations, estimates and projections about the financial services industry, the economy, and Southern Michigan Bancorp, Inc. Forward-looking statements may be identified by words or phrases such as "plan" or "strategy"; that an event or trend "may", "should", "will", "is likely", or is "probably" to occur or "continue", has "begun" or "is scheduled" or that the Company or its management "anticipates", "believes", "estimates", "plans", "forecasts", "intends", "predicts", "projects", or "expects" a particular result, or is "committed", "confident", or "optimistic" that an event will occur, or other words or phrases such as "ongoing", "future", "signs", "efforts", "tend", "exploring", "appearing", "until", "near term", "going forward", "starting" and variations of such words and similar expressions. These statements include, among others, statements related to real estate valuation, future levels of non-performing loans, the rate of asset dispositions, dividends, future growth and funding sources, future liquidity levels, future profitability levels, the effects on earnings of changes in interest rates and the future level of other revenue sources. Management's determination of the provision and allowance for loan losses, the appropriate carrying value of intangible assets (including goodwill, mortgage servicing rights and deferred tax assets) and other real estate owned and the fair value of investment securities (including whether any impairment on any investment security is temporary or other-than-temporary and the amount of any impairment) involves judgments that are inherently forward-looking. All of the information concerning interest rate sensitivity is forward-looking. Management's assumptions regarding pension and other post retirement plans involve judgments that are inherently forward-looking. Our ability to sell our other real estate owned at its carrying value or at all, successfully implement new programs and initiatives, increase efficiencies, respond to declines in collateral values and credit quality, maintain our current level of deposits and other sources of funding, and improve profitability is not entirely within our control and is not assured. The future effect of changes in the real estate, financial and credit markets and the national and regional economy on the banking industry, generally, and Southern Michigan Bancorp, Inc., specifically, are also inherently uncertain. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions ("risk factors") that are difficult to predict with regard to timing, extent, likelihood and degree of occurrence. Therefore, actual results and outcomes may materially differ from what may be expressed or forecasted in such forward-looking statements. Southern Michigan Bancorp, Inc. does not undertake to update forward-looking statements to reflect the impact of circumstances or events that may arise after the date of the forward-looking statements.

                    Risk factors include, but are not limited to, the risk factors described in "Item 1A - Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2010. These and other factors are representative of the risk factors that may emerge and could cause a difference between an ultimate actual outcome and a preceding forward-looking statement.

SIGNATURES

                    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 hereunto duly authorized.