Without knowing the type of business you have or having your bank statements to see what you have spent money on regarding the business, there really isn't a way to give a complete answer. However, as far as home office expenses (utilities related to the home, rent or mortgage interest/real estate tax) there are 2 rules of being able to take those deductions.
- Must be regular and exclusive use for the business-this part of the home can only be exclusively used for the business.
- principal place of business-has to be where substantial work is done.
In your example, no other activity (such as sleeping) can be done in that space during these 8 months you are trying to take the home office deduction.
Other common deductions are
- meals while working but away from the workspace. Eating in your home office does not count.
- meals with clients.
- travel expenses that are work related, including vehicle usage
I have attached a link that goes in much greater detail.
Popular business deductions
