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 1, 2012

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))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

                    Southern Michigan Bancorp, Inc. ("Southern") will hold its annual meeting of shareholders on Thursday, May 10, 2012, at 4:00 p.m. local time. At the meeting, the shareholders will (1) vote on the election of five directors; and (2) ratify the selection of CliftonLarsonAllen LLP as independent auditors for 2012. In addition, any other business that may properly come before the meeting will be conducted.

                    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 10, 2012 and continuing through May 20, 2012.

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 are identifiable by words or phrases such as "outlook", "plan" or "strategy"; that an event or trend "may", "should", "will", "is likely", or is "probable" to occur or "continue", has "begun" or "is scheduled" or "on track" or that the Company or its management "anticipates", "believes", "estimates", "plans", "forecasts", "intends", "predicts", "projects", or "expects" a particular result, or is "committed", "confident", "optimistic" or has an "opinion" 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. Such statements are based upon current beliefs and expectations and involve substantial risks and uncertainties which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These statements include, among others, statements related to trends in our credit quality metrics, future capital levels, future charge-off levels, real estate valuation, future levels of non-performing assets and costs associated with administration and disposition of non-performing assets, the rate of asset dispositions, dividends, future growth and funding sources, future liquidity levels, future profitability levels, future FDIC assessment levels, future effects of new or changed accounting standards, 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 and mortgage servicing rights), deferred tax assets and other real estate owned, 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), and management's assumptions concerning pension and other postretirement benefit plans involves judgments that are inherently forward-looking. All statements with references to future time periods are forward-looking. All of the information concerning interest rate sensitivity is forward-looking. Our ability to 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.

                    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, 2011. 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. We undertake no obligation to update or revise our forward-looking statements to reflect developments that occur or information obtained after the date of this report.

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.