Do Australia passport holders need a visa to visit RS?

No visa needed. Australian ordinary passport holders can enter Serbia visa-free for tourism and stay up to 90 days within a 6-month (180-day) period. Australian citizens holding an ordinary passport do not need a visa to visit Serbia for tourism or other short stays. The Serbian Ministry of Foreign Affairs confirms visa-free entry for up to 90 days within a 6-month period, counted from the date of first entry. Serbia is NOT part of the Schengen area, so the Schengen 90/180 rule and ETIAS do not apply to a trip to Serbia; the 90-day allowance is Serbia's own domestic limit. Travelers should carry a passport valid for at least 90 days beyond the intended departure date (a wider 3-6 month buffer is advisable) and be prepared to show proof of onward/return travel, sufficient funds, and accommodation. A key practical obligation is foreigner registration ("white card"): if staying in a hotel or other commercial accommodation, the property registers the guest automatically; if staying in private accommodation, the visitor or host must register with the local police within 24 hours of arrival. Failure to register can lead to fines or problems on exit. There is no fee for visa-free entry. For stays beyond 90 days, work, study, or other long-term purposes, a visa or temporary residence permit is required.