People write off personal stuff as a business expense all the time, it's not like tax authorities have the time to go through line items on invoices. As for th

People write off personal stuff as a business expense all the time, it's not like tax authorities have the time to go through line items on invoices. As for the legality, when you take stuff that you bought for the company and later use it for personal things, you need to "pay" the company for it, you can't just write if off.