Season Ticket holders for the 2015/16 campaign who have not yet renewed have two weeks to claim their current seat.
Tickets remain on reserve until 5.00pm on Friday 1 July, thereafter all unclaimed seats will be made available.
Tickets start from just £455 on the Kop, equating to just £19.78 for every Championship fixture at Hillsborough next season.
Following the above deadline, supporters will have the opportunity to switch seats in three separate phases.
Details will be announced in the week prior to the deadline, with supporters who have purchased a three-year Season Ticket getting first priority to move seats, followed by those on a two-year and finally those that have purchased a one-year Season Ticket.