You can use this method if the rooms in your home are all about the same size, you can figure the business percentage by dividing the number of rooms used in your business by the total number of rooms in the house. For example, you have 5 bedrooms that are about the same size and you use one of the bedrooms exclusively for your primary home business office.
However, the most exact way to figure this proportion is to measure the square footage devoted to your home office and find what percentage it is of the total area of your home. If the office measures 150 square feet, for example, and the total area of the house is 1,200 square feet, your business percentage would be 12.5% (150 ÷ 1,200).
Here are some additional resources for you: Home office deduction: https://turbotax.intuit.com/tax-tips/small-business-taxes/the-home-office-deduction/L1RZyYxzv
You may also want to refer to IRS Videos for Small Business Tax Workshop which includes Business Use of you Home. - https://www.irsvideos.gov/Business/SBTW/Lesson4
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
