In order to successfully do the breakeven analysis, you need to gather and/or create the client’s financial information:
A reasonable goal to set would be to finish the break even analysis within the first 30 days of the engagement. This target may change depending on how much other work and/or projects that you will need to be accomplished before then.
Once you have done the initial break even analysis, it will just be a question of maintaining it by inputting the most recent financial information. Do this maintenance on either a monthly or quarterly basis.
You can be easily obtain historical and YTD financial statements if you use an accounting system such as PeachTree, QuickBooks or Great Plains. However, depending on the client, you may need to work with the Owner(s)/Management to get a list of their expenses.
Once you get the expense info, separate the list to have a Fixed Expense portion and a Variable Expense portion.
Also, as part of your analysis, you may want to discuss any “What if” scenarios with the Owner(s)/Management. They will be able to provide any direction you need with regards to changes in expenses going forward.