Organisers Tennis Australia said on Tuesday it would cap allocations of its A$49 "ground passes" during the first week of the main draw as they expected demand to be stronger than ever in 2027.
"This decision reflects the growing popularity of the AO and will help ensure fans are able to make the most of everything on offer across the precinct," the governing body said in a statement.
Ground passes allow holders to roam between matches outside the major showcourts at Melbourne Park and are hugely popular among casual fans.
However, a spike in attendances in recent years has contributed to long queues to access courts and raised concerns about a declining fan experience.
A record 1,368,043 fans attended the 2026 tournament through its three-week schedule which saw Carlos Alcaraz claim the men's singles title and Elena Rybakina the women's on the final weekend.