Originally posted by disneygeek
I am having a hard time deciding whether or not to get annual passes this time. Our 1st day is Nov1. If we are on our 5th day of a 5 day PH, can I decide to upgrade to AP and count Nov 1 as day one?
A qualified yes. The qualifier is this: it must be done prior to the close of business 7 days from the first use OR prior to the close of business on the day of the final major park admission use before the ticket would be used up.
In your case, if you got to a major park on each day, Nov 1-5, then you would have to do it prior to the close of business on 11/5. You can always do it sooner if you desired. The AP would indeed be backdated to Nov 1. If the ticket is completely used up and you decide on November 6 or 7 to do the upgrade, you will be out of luck.
Would the entire price of the PHP go toward the cost of the AP?
If you bought it from a Disney source, yes.
If you bought it from a non-Disney ticket wholesaler, no. You will only get credit for the wholesale price of the ticket purchased from a wholesaler, not the retail price you paid them.