Hi Charlie,
Yes! You will have full benefits of your annual pass through the expiration date listed on your pass. We planned a visit last spring based on the expiration date of my daughter's annual pass and managed to get in two theme parks on her final day as a passholder. (She's gone to college out of state. Otherwise, she would still be a passholder.)
In case you missed it: As a celebration of Walt Disney World's 45th anniversary,
annual passes purchased or renewed before January 3, 2017 will be good for
13 months instead of 12. So, if you are close to the end of your pass, you might want to consider taking advantage of that bonus.
Thanks for dropping by the Disney Parks Moms Panel, Charlie! We're always here to help with questions about planning, passes, food and fun at
Walt Disney World.
Wilma