I am purchasing "TurboTax Business". May I download the program on two computers in my office? I.m limiting my use to 4 LLCs. But it is helpful to use both computers.

I'm only interested in whether I have to purchase and download TurboTax for Business twice in order to run it on two computers (I would be processing the same 4 tax returns). It's very helpful if I can work from both computers. I don't want to have to buy the program twice...