It's cool if you return it at the end of the year that you don't have to pay taxes on it. You could steal something, use it to make more money, and then return it. This avoids paying any kinda sales taxes when you took it. And since inventory is taxed you wouldn't have to pay on that.
Someone could exploit this. Make a fake company that steals from the real company, returns the property at the end of the year.
My first job was at a place called Cybo Robots in Indianapolis. The R&D department there created something that iRobot turned into the Roomba, when they bought the company. The entire point of the company was to lose money as a tax write off. The owner owned several other profitable companies, and needed a money sink so that he could get out of paying taxes, so he created Cybo Robots.
My point here is that not only could someone exploit this, they already are in multiple ways.
Technically, if you intend to return it eventually, it's not theft.
Theft, under the common law of England, as brought to the U.S., is the deprivation of personal property of another with the intention to permanently deprive them of it. If you don't have that intent, it's not theft. That's why we have "joyriding" and "grand theft auto" as separate things.