Having gone through the above interchange, and generally agreeing with @LinaJ2018 , just want to make sure you understand that (a) can you "write off" is yes, the question is how much and also should you; (b) one has to recognize that an item is eligible for business expense deduction if and only if , it is customary, essential and usual to use such a tool and the tool is generally used exclusively for the production of income during a dedicated period; (c) for a 50% business use of a $3000 tool with a life of 5 years, means your depreciable basis is $1500 and therefore it is $300 per year against the business income; (d) business losses are limited to $3000 per year and the suspended losses (NOL) is carried backward and forward; (e) for a business to be recognized as a business ( income motive ) and not hobby( no losses recognized ) it must be profitable at least 3 out of five years ( there are ifs and buts in this ); (f) when there is gain disposing of assets with depreciation, there is a requirement of recapture i.e. gain being treated as ordinary income rather than capital gain .
Therefore, it is advisable that you consult a tax professional as you start on this business venture -- there are lots of pitfalls ( and obviously opportunities ).
