Can I use one license for 2 PC's?

[Stok]

I'll either be using NT on office PC or laptop at home, but not on both at same time. I assume I can do that with one license?

[NinjaTrader_RJ]

Hello Stok,

Thank you for your post.

Yes, as long as they are not both running at the same time, you should be fine.

[I-trade]

And if 2 NT are running at the same time?

[NinjaTrader_RJ]

You cannot have 2 instances of NinjaTrader running at the same time with the same live license, you will have to purchase another license to do so.
You can use a free license on one and a live license on the other.