There are no additional fees besides your annual maintenance fee (that includes all property taxes and resort charges).
Banking does have deadlines to follow. You may bank up to 100% of your points during the first 6 months of your Use Year. From 6 months to three months, you may bank up to 50% of your points (this is the total that may be banked- if you have already banked 50% at 6 months- no more may be banked). With up to three months remaining in your Use Year, you may bank up to 25% of your total points. Banking is not allowed during the last two months of your Use Year.
If you have a June Use Year, you may bank up to 100% of your points by November 30.50% may be banked by the end of February and 25% may be banked up until March 31. No points may be banked during April or May.
If you have add-ons to your original contract that are part of the same contract, the banking deadlines/percentages include all points in that contract- including the points added.
Banked points MUST be used during the next Use Year and can not be baked again.
Enjoy!