Bank First Corp Segments Disclosure

Note 19 Segment Information

The Company’s reportable segment is determined by the Chief Executive Officer, who is the designated chief operating decision maker, based upon information provided by the Company’s products and services offered, primarily banking operations. The segment is also distinguished by the level of information provided to the chief operating decision maker, who uses such information to review the performance of various components of the business such as branches, which are then aggregated as operating performance, products and services, and customers are similar. The chief operating decision maker will then evaluate the financial performance of the Company’s business components such as by evaluating significant revenues and expenses and budget to actual results in assessing the Company’s segment and in the determination of allocating resources. The chief decision maker uses revenue streams to evaluate product pricing and significant expenses to assess performance and evaluate return on assets. The chief decision maker uses consolidated net income and return on assets to benchmark the Company against its competitors. The benchmarking analysis, coupled with monitoring of budget to actual results, are used in the assessment of performance and in establishing compensation. Loans, investments, service charges, and deposits in other banks provide the significant revenues in the banking operation. Interest expense, provisions for credit losses, data processing and payroll provide the significant expenses in banking operation. All operations

are domestic. Information reported internally for performance assessment by the chief operating decision maker is identical to that which is shown in the Consolidated Statements of Income.