I am quite confused and google doesn't help. I am a freelancer and I work from home. I have a dedicated office therefore I deduct my business expenses. I recently had to upgrade my computer network - my question is, is this an expense i. E. Do I deduct the amount I spent buying the computer, or do I have to do the depreciation calculation? Is there some monetary limit to make it easier to figure out when it is an expense and when the depreciation calculation must be applied?