Can I buy a leftover second chance tag online, or do I have to go to a vendor or IF&G office?

Answer:

Big game hunters who were drawn in controlled hunt drawings have until Thursday, August 1, to buy their tags. 

Any tags not purchased by that date will be forfeited and will become available for a second drawing. The application period for the second drawing runs from August 5 to 15. The drawing will be August 20.

Any left over tags will go on sale August 25.  Leftovers can be purchased online.