Provisional vs Standard Patent Applications in Australia: Which to Choose

You have an invention worth protecting, and now you face a fork in the road: file a provisional patent application first, or go straight to a standard patent. The choice affects your costs, your timing, and how soon you can talk to investors or manufacturers. Here is how the two compare under Australian law, and how to work out which suits your situation.

What a provisional patent application does

A provisional patent application in Australia gives you an early priority date without the full cost or commitment of a complete application. It is not examined, it is not published, and on its own it never becomes an enforceable patent.

What it buys you is time. Once your provisional is filed, you have 12 months to file a complete application (a standard patent or an international PCT application) that claims priority back to that date. During those 12 months you can refine the invention, test the market, and judge whether the commercial case justifies further spend.

Think of a provisional as reserving your place in the queue while you decide how far to take things.

What a standard patent gives you

A standard patent is the enforceable right. Once granted, it can protect your invention for up to 20 years from the filing date, and longer for certain pharmaceuticals. To get there, the application is examined by IP Australia and must clear two main hurdles: it has to be novel and involve an inventive step against what already exists.

That examination is rigorous, which is why a granted patent carries real weight with investors, licensees and competitors. It also takes longer and costs more than a provisional.

Can you go straight to a standard patent?

Yes. No rule forces you to file a provisional first. If your invention is finished, your commercial plans are settled, and you are ready to commit, you can lodge a standard application from the outset and save yourself 12 months.

Most inventors still start with a provisional, for good reasons:

• It secures your priority date early, before you disclose the idea to anyone.
• It costs far less up front, so you are not committing the full budget before you know the invention will sell.
• It gives you 12 months to improve the design and add detail to the eventual standard specification.

The trade-off is timing. A provisional adds a year to the overall process, which matters if speed to a granted patent is your priority.

Is the innovation patent still an option?

No, not for new applications. The innovation patent was phased out, and new innovation patent applications have not been accepted since 25 August 2021. Any files before that date run their course until expiry, but the option is closed for anything you are working on now.

If you were counting on the innovation patent’s faster, lower-threshold route, a standard patent is now the way to protection in Australia.

How to decide

A simple way to frame it:

• Early idea, tight budget, still testing the market? Start with a provisional, then reassess at the 12-month mark.
• Finished invention, funding in place, need protection fast? File a standard application directly.

Getting the specification right at the provisional stage is what protects your priority date, so it pays to have a patent attorney draft it properly rather than filing a thin description you cannot rely on later. Our patent services team can advise on the right filing strategy for your invention.

Frequently Asked Questions

Q1: What is the difference between a provisional and standard patent in Australia? 

A provisional secures an early priority date and lasts 12 months but is never examined or enforceable on its own. A standard patent is examined by IP Australia and, once granted, is an enforceable right lasting up to 20 years.

Q2: How long does a provisional patent last in Australia? 

Twelve months. Within that period you must file a complete application (standard or PCT) claiming priority to the provisional, or the priority date lapses.

Q3: Can I go straight to a standard patent application without filing a provisional first? 

Yes. A provisional is optional. Going straight to a standard application saves 12 months, though many inventors file a provisional first to secure an early date and buy time to develop the invention.

Q4: Is the innovation patent still an option in Australia?

 No. New innovation patent applications have not been accepted since 25 August 2021. A standard patent is now the route to protection.

Q5: How much does a provisional patent cost compared to a standard patent? 

A provisional is far cheaper to file than a standard patent, which involves examination, acceptance and ongoing renewal fees across its life. Attorney drafting costs vary with the complexity of the invention, and official fees change over time, so ask for a current quote before you budget.

If you are weighing up your options, get in touch with our team for advice tailored to your invention.