IANAA (I am not an accountant), but... In general you can write off business expenses. There are two main categories: 1: Normal expenses - these are generally for things that are consumed within a year -- for example magazine subscriptions or internet service bills. 2: Depreciation on capital expenditures. This handles things like computers and software. There are two basic ways you can handle this expense: A: Normal (or accelerated) depreciation. According to an IRS formula you can deduct a certain percentage of your cost (basis) each year. The percentages and number of years involved vary based on the particular type of property. B: Section 179 deduction. For some property types you can deduct the entire cost the first year the property is placed in service. FYI: Computer hardware is eligible fo the Section 179 deduction (if used 50% or more for business), but software must be depreciated over several years. If you sell something you have take depreciation or a section 179 deduction on and you get more for it than its 'book value', you have to recognize income for the difference. I do my own taxes because the one time I hired a pro he botched it. (Of course the old adage that a may the represents himself has a fool for a lawyer may also apply to accounting here). Bob Ammerman RAm Systems -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.