Just a word of caution--I emailed this very question about 2021 points being added to a 2022 direct purchase to a
DVC guide today and was told that 2021 points are only added to 2022 purshases made 4 months before the desired UY. So if you will be purchasing a June UY, 2021 points won't be added for any purchase after Jan 31.
I was asking about a Sept UY. Here's the reply:
"Yes, purchasing points in the previous four months of the desired UY will not receive 2021 points.
A Sept UY will need to be purchased prior to April 30th to be able to bank into Sept 2022-2023. Any purchase after April 30th will not receive 2021 points."
Not sure if the replies from other members above depended upon a distinction for an exemption granted later by a call to Member Services (versus written into the original contract by a DVC guide), or if there was a different timing exemption for 2020/2021 points due to Covid)