If you do some work at home for your business, you are more than likely using your home internet connection. Ideally, you should keep track of how much time you use your home internet connection for business and how much time for personal use. A simple log or notation on your business calendar or appointment book indicating how many hours you were online for business each day while working at home should be sufficient. 
You can also find software and apps that will track your internet use. In addition, you could use a sampling method for 90 consecutive days if your business is not seasonal.  

If you would like to discuss how much of your work at home creates tax deductions, please call Susan at 630.523.5762.  For more helpful tips on becoming a highly profitable business owner, check out Highpoint Advisory Services.