Can I claim home office spaces in home and detached garage?

My business is selling used chainsaw parts. I disassemble, clean, rebuild subassemblies in a 300 sf room in a detached garage. This room is used 100% for the business. Separately I have a 200 sf office in the house that I conduct the sales side of the business which is used 100% for the business. Can I treat the two areas as one home business?

posted

Yes. You will need to add the total square footage of the garage to the total square footage of your home. Then add the garage space to the office space to get your "home office" square footage.