Can You Mark A Proposal Commercial In Confidence?

Sending a proposal can feel a bit vulnerable. You're often sharing your pricing, approach, timelines, team structure and ideas before the client has committed to working with you.

So it's natural to want to stamp commercial in confidence on the front page and hope that keeps everything protected. The label can help, but in Australia, it's usually only one part of the picture.

If your proposal includes sensitive business information, you may need more than a label. The right mix might be an NDA, clear proposal terms, a confidentiality clause in your contract, and an internal confidential information policy for who gets access to what.

What Does Commercial In Confidence Mean On A Proposal?

Commercial in confidence usually means you're telling the recipient that the proposal contains business information that shouldn't be shared or used outside the purpose you sent it for.

In a proposal, this might cover things like:

• your pricing model or rate card
• your strategy, methodology or creative concept
• technical specifications or software architecture
• supplier details or margins
• client lists, case studies or internal processes
• personal information about your team or customers
• commercial terms you're willing to offer that client

For example, say you run a digital marketing agency in Melbourne. You send a prospective client a proposal that sets out a six-month campaign plan, ad spend assumptions, channel strategy and a discounted retainer. You don't want the client forwarding it to three other agencies and asking them to copy your structure for a lower price.

Marking it commercial in confidence makes your expectation clear. It tells the recipient: this isn't a brochure, and it's not information you're free to circulate.

But the wording itself doesn't magically create a fully formed contract. Whether you can enforce confidentiality will depend on the circumstances, what was agreed, and what the recipient did with the information.

Does A Commercial In Confidence Label Create A Legal Obligation?

Sometimes it can help, but you shouldn't rely on the label alone if the proposal contains genuinely sensitive information.

Australian law can protect confidential information even without a written contract. This is often called an equitable duty of confidence. In simple terms, you may have a claim if:

• the information had the necessary quality of confidence, meaning it wasn't public or obvious
• you shared it in circumstances where the recipient knew, or should have known, it was confidential
• the recipient used or disclosed it without permission
• you suffered, or could suffer, commercial harm as a result

A commercial in confidence label can support the second point because it shows you told the recipient the information was confidential. It can be useful evidence if things go wrong.

However, the label has limits. It may not be enough if:

• the information was already public
• the proposal was sent broadly without any access controls
• you didn't say what the recipient could and couldn't do with it
• there was no agreement restricting use or disclosure
• the recipient can show they developed a similar idea independently

This matters because business ideas on their own aren't usually protected just because they're good ideas. Copyright can protect the written proposal, diagrams, images or other original material you created, but it generally doesn't protect the underlying idea, method or concept.

If you have a trade mark, patent or registered design, those rights are different and may involve IP Australia processes. But for many proposals, the most practical protection is a clear confidentiality agreement or clause.

When Should You Use An NDA Before Sending A Proposal?

You should use an NDA before sending a proposal if you're about to disclose information that would hurt your business if it was copied, shared or used against you.

An NDA, or non-disclosure agreement, is a contract that sets rules for confidential information. It can be one-way, where only one side is disclosing information, or mutual, where both sides are sharing confidential information.

You might want an NDA before sending a proposal if you're sharing:

• a new product concept, app idea or technical workflow
• a detailed pricing model that competitors could use
• supplier or manufacturer details
• business plans, financial information or growth strategy
• customer data or personal information
• proprietary processes, templates or training materials
• information about a potential acquisition, partnership, tender or request for proposal submission

For example, Mia runs a Brisbane food manufacturing business. A national retailer asks her to send a proposal for a private label or white label product range. Her proposal includes supplier contacts, ingredient sourcing, production capacity and wholesale pricing. In that situation, an NDA before disclosure makes sense because the information is commercially sensitive and difficult to put back in the box once shared.

When A Proposal Label May Be Enough

A simple commercial in confidence label may be enough for lower-risk proposals where you're mostly sharing standard service packages, public case studies and broad pricing.

For example, if you're a cleaner sending a quote for regular office cleaning with standard inclusions and hourly rates, an NDA may feel too heavy for the situation. You might instead include a short confidentiality notice in the proposal terms.

When An NDA May Be Too Late

An NDA works best before you disclose the sensitive information. If you've already sent the proposal, you can still ask the recipient to sign confidentiality terms, but they may be less willing to do so after receiving the value of your thinking.

If a client pushes back on signing an NDA, you can still protect yourself by staging the disclosure. Share enough to win the work, but hold back the most sensitive details until a contract is signed.

What Should A Confidentiality Clause In Your Proposal Say?

A good confidentiality clause should say what is confidential, what the recipient can use it for, who they can share it with, and what happens when the process ends.

Templates often miss the practical details that make a clause useful. Your clause should match the way you actually pitch, negotiate and deliver your work.

Depending on your business, your proposal confidentiality wording might cover:

• Definition: what counts as confidential information, including pricing, methods, documents, discussions and attachments
• Purpose: the recipient can only use the proposal to assess whether to engage your business
• No copying: the recipient must not copy, adapt or reproduce your proposal except as needed for that purpose
• No sharing: the recipient can only share it with named people or advisers who need to see it and are also bound to keep it confidential
• Return or deletion: the recipient must return or delete confidential material if requested
• Exclusions: information isn't confidential if it's already public, already known, independently developed or required to be disclosed by law
• Duration: how long confidentiality lasts, which may be several years or longer for trade secrets
• IP and permitted use: you retain ownership of your original proposal materials, pre-existing IP, know-how and confidential information. The recipient may only use them to assess the proposal and doesn't receive any broader licence unless a signed agreement says otherwise

You can include this wording in your proposal terms, quote terms, master services agreement or a separate NDA. The right option depends on the risk level and how your sales process works.

Proposal Terms Versus A Signed Contract

There's a practical difference between writing a confidentiality notice on your proposal and getting signed terms.

A notice is helpful because it sets expectations. A signed NDA or contract is stronger because it shows the recipient actively agreed to the obligations.

If the proposal is high value or sensitive, aim for signed terms before disclosure. If that's not commercially realistic, at least make the confidentiality wording prominent, send the proposal to named recipients, and follow up in writing that it's confidential.

How Can You Protect Your Ideas, Pricing And Client Information?

You can protect your proposal by combining legal documents with sensible internal processes.

Confidentiality isn't just about what the front page says. It's also about how you handle the information before, during and after you send it.

Use A Staged Disclosure Process

You don't always need to reveal everything at once. A staged process might look like this:

1. send a short capability statement with public information
2. hold an introductory call to confirm the opportunity is genuine
3. send a high-level proposal with commercial in confidence wording
4. ask for an NDA before sharing detailed strategy, pricing logic or technical documents
5. move to a services agreement once the client decides to proceed

This gives the client enough information to make a decision without giving away your full playbook too early.

Limit Who Receives The Proposal

Send the proposal to specific named people rather than a generic inbox where possible. If the client wants to share it internally, ask who needs access.

You can also include wording such as: This proposal is provided for your internal evaluation only and must not be shared outside your organisation without our written consent.

Mark Sensitive Parts Clearly

It can help to mark the whole proposal commercial in confidence and also label specific sections as confidential, such as pricing, technical architecture or implementation plans.

Be careful not to overuse confidentiality labels on material that's clearly public. If everything is labelled confidential, even your company bio, the label can start to lose practical meaning.

Protect Personal Information

If your proposal includes personal information, such as staff profiles, customer details or user data, you may also have obligations under the Privacy Act 1988.

For example, if you disclose identifiable customer information in a proposal, you should check whether you have the right consent or legal basis to do so. You should also limit the information to what the recipient genuinely needs.

If your business is covered by the Australian Privacy Principles, your privacy policy, collection practices and sensitive information handling process should line up with the way you use personal information in proposals.

Keep Records Of What You Sent

Keep a copy of the final proposal, the date you sent it, who received it and any emails where confidentiality was discussed. If the recipient later shares or copies it, those records can make a big difference.

Document control tools, PDF permissions and password protection can help, but they aren't a substitute for clear legal terms. Think of them as supporting evidence and risk reduction, not a complete shield.

What If Someone Shares Or Copies Your Proposal?

If someone shares or copies your proposal without permission, your first step is to preserve the evidence and check what legal obligations apply.

Try not to fire off an emotional email straight away, even if it feels frustrating. A clear, measured response usually puts you in a stronger position.

Start by gathering:

• the proposal you sent, including any confidentiality labels
• the email or message you used to send it
• any signed NDA, proposal terms or services agreement
• evidence of the unauthorised sharing or copying
• screenshots, competing proposals, website pages or tender documents that show the issue
• notes of any calls where confidentiality was discussed

Then consider what rights you may have. Depending on the facts, you may be able to rely on:

• contract law: if there's a signed NDA, proposal term or contract clause
• equitable breach of confidence: if the information was confidential and shared in circumstances importing confidence
• copyright law: if your written content, graphics, diagrams or documents were copied
• Australian Consumer Law: if misleading or deceptive conduct is involved, such as someone misrepresenting your work as their own in trade or commerce

The right response depends on the relationship, the harm and what you want to achieve. Sometimes a firm letter asking for deletion, undertakings and confirmation of no further use is enough. In more serious cases, you may need urgent commercial disputes advice, especially if the information is about to be used in a tender or public launch.

Without a written agreement, you may still have options, but it can be harder to prove exactly what the recipient agreed not to do. That's why getting the protection right before you send the proposal is usually much cheaper and calmer than trying to fix it later.

Common Mistakes To Avoid

The most common mistake is assuming the words commercial in confidence will do all the work by themselves.

Here are a few traps to watch for:

• Sending too much too early: don't give away detailed strategy, supplier contacts or technical methods before the opportunity is qualified.
• Using vague wording: phrases like please keep this confidential are better than nothing, but they don't always explain what the recipient can and can't do.
• Forgetting IP and permitted use: make it clear that you retain ownership of your original proposal materials, pre-existing IP, know-how and confidential information, and that the recipient can only use them to assess the proposal unless signed terms say otherwise.
• Not getting the right person to sign: if you're dealing with a company, check that the person signing has authority to bind the company. Australian companies will usually have an ACN, and businesses often use an ABN on proposals and contracts.
• Disclosing personal information unnecessarily: keep staff, customer and user details to the minimum needed for the proposal.
• Relying on tech controls only: password protection helps, but it doesn't replace an NDA or confidentiality clause.
• Using the same approach for every proposal: a low-risk quote and a high-value strategic pitch don't need the same level of protection.

A simple risk-based process often works well. Low-risk proposals might use a clear confidentiality notice. Medium-risk proposals might include proposal terms and IP wording. High-risk proposals should usually involve a signed NDA before detailed information is shared.

Key Takeaways

• Marking a proposal commercial in confidence can help show that you expected confidentiality, but it may not be enough on its own.
• Use an NDA before sending sensitive information that could harm your business if it was copied, shared or used by someone else.
• Your proposal terms should explain what is confidential, what the recipient can use it for, who can see it and what IP or confidential information you retain.
• Protecting a proposal is partly legal and partly practical. Limit access, stage disclosure and keep records of what you sent.
• If someone shares or copies your proposal, preserve the evidence and check your contract, confidentiality, copyright and Australian Consumer Law options.

If you'd like help with proposal terms, NDAs, confidentiality clauses or protecting sensitive business information before you pitch, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.