Once you account is active, all your points are in there, they do not get loaded in the future. Your 2040 points are there, you just can not make a reservation at this time that can use them.
If you chose to look at it that way, then your points get "loaded" or "Populated" 1 year and 11 months before the first day of the UY - since that is the first day you can make a reservation with those points.
With an August UY, your August 2020 points were "loaded" on September 1st, 2018 - as you could have booked a trip for August 1, 2019 on that day, and you could have borrowed 2020 points to do so, had you desired.