IP Australia calls its patent renewal payments "continuation fees" rather than annuities, but the underlying obligation is familiar: pay on time, every year, or risk losing the patent. For patentees managing an Australian filing alongside US or Indian protection, the differences in terminology and timing are exactly where deadlines quietly slip through the cracks.
When Continuation Fees Are Due
For a standard Australian patent, continuation fees become payable annually starting from the fifth anniversary of the filing date, and continue each year until the patent's 20-year term ends. Payment can be made up to three months before the anniversary falls due, which gives portfolio managers a genuine window to batch payments rather than racing a single date.
The Late Payment Window
Missing the anniversary date isn't immediately fatal. IP Australia allows a six-month late payment period, provided an additional late fee is paid along with the overdue continuation fee. If that six-month window also lapses without payment, the patent ceases.
Restoring a ceased patent after the late payment window closes generally requires an extension of time request, supported by evidence that the failure to pay was not a deliberate choice. This is assessed case by case and is not a routine administrative fix.
A Note on Innovation Patents
IP Australia closed the innovation patent system to new applications in 2021 as part of a phase-out that has been running for several years. If your portfolio still includes an innovation patent granted before that change, its renewal schedule and remaining lifespan follow the older, separate rules rather than the standard patent continuation fee timeline — worth flagging explicitly if you're not certain which regime a given Australian right falls under.
Keep every Australian anniversary date covered
We track continuation fee deadlines across your Australian patents and handle payment directly with IP Australia ahead of each anniversary.
View Australia Renewal Services →Comparing Three Jurisdictions on One Calendar
Between an annual anniversary-based fee in Australia, a three-stage schedule at the USPTO, and an annual annuity in India that starts differently depending on grant timing, a patentee with protection in all three places is effectively running three separate clocks with three separate grace-period rules. See our guides on USPTO maintenance fees and Indian patent renewal fees for how the other two compare, and consider consolidating tracking across all three onto a single calendar rather than three separate ones.