You've just been offered a job you really want. Tucked into the onboarding pack, right next to the contract, is a separate one-page form to sign: a non-disclosure agreement.

You skim it. Everything you'll ever learn about the company stays secret — forever. And for two years after you leave, you can't work for a competitor. HR says it's "standard." You want the job, so your finger hovers over the signature line.

Here's the thing most people don't know in that moment: a lot of what's in that document might not actually be enforceable.

First, what an NDA actually is (and what it isn't)

An NDA — a non-disclosure agreement, sometimes called a confidentiality agreement — is a contract where you promise to keep certain information secret and only use it for an agreed purpose. You sign them when you start a new job, before a job interview, when a mate wants to show you their business idea, or any time someone's about to share something they'd rather keep private.

What an NDA is not is a non-compete. A non-compete (a restraint-of-trade clause — a rule that stops you working for competitors or chasing certain clients) is a different tool for a different problem. NDAs protect information. They're not meant to stop you doing your job.

That distinction matters more than it sounds. When an NDA quietly tries to do both — keep secrets and lock you out of an entire industry — that's exactly where it starts to fall apart.

Are NDAs enforceable in Australia? Yes — but only if they're reasonable

Short version: yes, NDAs are enforceable in Australia — when they're properly drafted, reasonable in scope, and protect information that's genuinely confidential. Courts take real confidentiality seriously. If you break a valid one, the other side can sue for damages (money to cover their loss) or get an injunction (a court order to stop you disclosing).

But "enforceable" isn't automatic. An Australian court won't rubber-stamp a confidentiality clause just because you signed it. If an NDA is excessively broad — in what it covers, how long it lasts, or how far it reaches — a court can narrow it down (lawyers call this "reading it down") or refuse to enforce it at all.

And if a confidentiality obligation goes so far that it effectively works like an unlimited non-compete, it can be struck down as an unreasonable restraint of trade. So the real question isn't "is my NDA binding?" It's "which parts of it would actually hold up?"

The three things that decide whether your NDA holds up

Three features do most of the heavy lifting: scope, duration and reach. Get these wrong and even a signed NDA can wobble.

Scope: what actually counts as "confidential"

A good NDA defines confidential information narrowly and ties it to a clear purpose. A weak one defines it as basically everything — "all information disclosed, in any form, at any time."

Courts are sceptical of definitions that sweep in things that aren't really secret. If the clause is so broad it would cover information that's already public, or the general skills and know-how you brought with you, that's a red flag for enforceability. The narrower and more specific the definition, the stronger it is.

What to look for: does the NDA say what is confidential — or does it just say everything?

Duration: how long do NDAs last in Australia?

There's no single legal answer. Most NDAs run for a fixed period — often two to five years. Genuine trade secrets (a recipe, source code, a proprietary formula) can be protected for as long as they stay secret.

But a blanket "forever" obligation over ordinary information is a different story. Perpetual confidentiality is frequently challenged, and it can be found unenforceable when it isn't justified by a real trade secret — particularly once the information has lost its secrecy or entered the public domain.

What to look for: an indefinite term over everyday information is often softer than it looks.

Reach: the restraint-of-trade trap

This is the big one if you're starting a new job. A confidentiality clause is meant to protect information — not to stop you earning a living. When an NDA's geographic reach or activity restrictions are so wide that they effectively prevent you from working in your field, it starts to look like a restraint of trade.

In Australia, restraints are only enforceable to the extent they're reasonable. One that lasts too long, covers too large an area, or bans too broad a set of activities is exactly the kind a court is willing to cut back — or refuse to enforce.

What to look for: is the NDA quietly trying to control who you can work for, not just what you can repeat?

What an NDA can't stop you doing

Even a watertight NDA has limits the other side can't write away. Most well-drafted ones spell these out as carve-outs (exceptions) — and if yours doesn't, that's worth noticing.

Standard exceptions cover information that becomes public through no fault of yours, information you already knew or developed independently, and information you're legally required to disclose — for example, under a subpoena or to a regulator. These keep the NDA reasonable. Their absence is one of the easiest weak points to miss.

On top of that, an NDA can't override whistleblower protections, and it can't stop you reporting something to the authorities. A confidentiality clause that appears to gag you from talking to a court, regulator or the police is overreaching — and overreaching is what makes clauses vulnerable.

Why signing blind costs you more than you think

The risk runs both ways, and that's the part people miss. Sign without reading and you might spend years self-censoring over information that was never enforceable to begin with — or turn down work you were legally free to take, because a clause looked binding.

Go the other way and you could breach a clause that actually was enforceable, simply because you didn't realise it. The point of reading an NDA properly isn't to find a reason to walk away. It's to know which lines have teeth and which don't — so you act on the real ones and stop worrying about the rest.

There's a shift coming — but it's narrower than the headlines

You might have seen news about NDAs being "banned." Here's the accurate version. Victoria has passed the Restricting Non-disclosure Agreements (Sexual Harassment at Work) Act 2025 — the first law of its kind in Australia. It's intended to commence on 1 July 2026, on a date to be proclaimed.

When it does, NDAs used to settle workplace sexual harassment matters will only be allowed if the person who made the complaint actually wants one — with a mandatory information statement, a review period, and the right to end the confidentiality after 12 months. NDAs in that context also won't be able to stop someone disclosing to authorities or support services.

The key word is narrow. This law is about sexual harassment settlements — not the NDA in your onboarding pack, or the confidentiality clause in your employment contract. It doesn't rewrite the rules for the everyday NDA. But it's a clear signal of where the wind is blowing: less tolerance for confidentiality used to silence people rather than protect genuine secrets.

What to check before you sign

You don't need a law degree to spot the weak points. A few practical checks before that signature goes down:

Read the definition of "confidential information." If it's "everything," it's worth asking for it to be tied to the specific project or information being shared.

Find the duration. If it says "in perpetuity" over ordinary information, a sensible term (two to five years is common) is a reasonable thing to request.

Look for a hidden restraint. If the NDA also stops you working with competitors or clients, that's a separate beast — and it only sticks if it's reasonable.

Check the carve-outs. Make sure there's an exception for information that's already public, independently developed, or required to be disclosed by law. If they're missing, you can ask for them.

Ask what it's actually for. A reasonable counterparty can explain why each restriction exists. If they can't, that tells you something.

None of this means refusing to sign. It means signing with your eyes open — and knowing which clauses you've got room to question.

Back to that onboarding pack

That one-page NDA with the forever-secrecy clause and the two-year competitor lock-out? Read it properly and you'd notice three things: the "confidential" definition covers everything (probably too broad), the perpetual term sits over ordinary information (often soft), and the "can't work for a competitor" line is a restraint of trade wearing an NDA's clothing (only enforceable if reasonable). You can still sign — but now you know what to ask them to tighten first.

That's the whole point: an NDA you understand is one you can actually negotiate. Upload your NDA to Contractam and we'll read it clause by clause — flagging the duration, the scope, the missing exceptions, and anything reaching further than it should — in plain English, in minutes. Your first analysis is free, and you can see exactly how it works before you do anything.

Disclaimer: Contractam provides contract analysis and information, not legal advice. For legal advice specific to your situation, consult a qualified Australian lawyer. Contractam analyses contracts under Australian law only.