The financial statement for a service company would be an income statement and a balance sheet.
On the income statement, you will report your revenue from services rendered, this is usually denoted as “service income”. Your expenses are related to the cost of the employees who are providing the service or the equipment used to provide the service. You will also have a line for depreciation of any equipment used to provide the service.
On the balance sheet, you will report your accounts receivable as well as cash holdings. Accounts receivable represent all the money that is owed to you from your services rendered and not yet collected from your client. Cash represents all the money on hand as well as investments in money market accounts.