I never have to reinvent the wheel. And as a professional accountant, you can imagine how many different "wheels" I use every day! Profit & Loss statements, Balance Sheets, Cash Flow Forecasts, Time Sheets, Break_Even Analyses, Margin Calculations, Business Plans, etc, etc. When using your own prior work as a financial template, you get another benefit _ you are so familiar with the template that it takes you no time to figure out how to use it. And each time you refine it just a little bit more. So pretty soon your templates run like a Swiss watch! All the bugs have been worked out, you have tested it with many different clients and many different business scenarios and you know you have something you can depend on. Financial Templates as Tools _ For someone who is not a finance professional, financial templates serve a slightly different purpose. They still save time, of course, but they also provide a tool that person would have to pay someone else to develop.
Next, how much detail do you need in your cash flow template Excel spreadsheet at the individual line item level? Is cash from financing sufficient or do you need equity financing, debt financing, interest earned, etc. Also how do you intend to handle depreciation and amortization, since these are non_cash items that are typically added back to the income statement entries when determining the cash effect.