Basic Bookkeeping (BBK) for Windows is a single-entry bookkeeping system for small businesses and individuals. It provides instant access to reports that both detail and summarize your income, expenses and profit or loss. It can handle up to 10,000 different expense types. Your expenses can be categorized to whatever level of detail you need. It supports both calendar and fiscal year accounting.Basic Bookkeeping can track up to 1,000 independent folders containing income and expenses for different businesses or profit centers within a single business. The custom report generator lets you create reports for any combination of one or more folders.Basic Bookkeeping is linked to OWL's OASIS (a complete sales, invoicing and customer management system), by an import option that allows direct transfer of income data.