AUSTRALIA POST (2025 Estimates)

Standard Post:

Same State: Around Monday, December 22.
Interstate (National): Around Friday, December 19.

Express Post:
Around Tuesday, December 23.
Remote/Regional/WA/NT: Allow several extra days; dates are earlier. 

SENDLE (2025 Estimates)

Standard Post

National (Non-WA/NT): Around Monday, December 17.
Near Metro: Around Wednesday, December 18 (Standard).
International: New Zealand cut-off around December 16. 

Express Post

National (Metro/Near Metro): Around Monday, December 22.
Regional: Around Friday, December 19.

Key Advice for Christmas 2025

Use Express: It offers the best chance for on-time delivery during peak.

Check Official Sites: Dates can vary; always check the Australia Post and Sendle websites for final cut-offs.