sort of - depends on use year and when your stay occurs.
when you book a reservation (11 months ahead at your home resort/7 mos elsewhere), you always have access to the current pts in that UY ("current" based on when you stay, not when you call to book) + banked pts from the prior UY (if you have any) + borrowed pts from the next UY (if needed).
i have an oct UY, so i can call in dec 2012 to book a stay for nov 2013 using current 2013 pts + banked 2012 pts + borrowed 2014 pts.
but if i wanted to stay in sept 2013, that is in my 2012 UY (which runs from oct 2012 through sept 2013). so in that case, i could use pts from 2011 (banked) + 2012 + 2013 (borrowed) but would not have access to 2014 pts.
here is a great thread about UY that you might want to read (and possibly bookmark):
http://www.disboards.com/showthread.php?t=1942668