Already banked 2020 points, can I borrow 2021 points and buy extra pts?

[Theta]

I would like to make a short last minute trip to WDW, I see a couple nights available. I already banked extra points from 2020 DEC UY, can I borrow my 50% 2021 points and buy a few extra points if needed?

 

[Sandisw]

Yes.