How To Write An Expression Of Interest For Business Opportunities And Partnerships

Exploring a new partnership or putting your hand up for a business opportunity is exciting - and competitive. A clear, confident expression of interest (EOI) helps you make a strong first impression and sets the tone for productive conversations.

In Australia, EOIs are common across private and public sector projects, collaborations, supply arrangements, and joint ventures. The good news? With the right preparation and structure, your EOI can do more than introduce your business - it can highlight your value, manage key legal risks early, and open doors to the next stage.

Below, we’ll walk through what an EOI is, how to prepare, a step-by-step structure you can follow, and the legal issues to keep in mind so you can move forward with confidence.

What Is An Expression Of Interest (EOI) In Business?

An expression of interest (EOI) is a short document or letter that tells another business or organisation you want to be considered for a specific opportunity or partnership. You’ll usually send an EOI early - as a response to a public call or as a proactive approach to a potential collaborator.

Think of your EOI as a professional introduction. It sets out who you are, what you do, why you’re a fit, and how you’d approach the work together. It’s typically non-binding (you’re not signing a contract at this point), but it does signal serious intent to engage - so your words, tone, and any promises matter.

Businesses use EOIs to shortlist suitable partners quickly. If your EOI is successful, you’ll usually move to a more detailed proposal, a formal tender, or direct negotiations.

Preparation: Research, Objectives And Confidentiality

Before you start drafting, a little groundwork will make your EOI sharper and more persuasive.

• Research the opportunity: If there’s a request for EOI, read it carefully. If you’re approaching a potential partner directly, review their strategy, recent projects, and pain points. Tailor your EOI to their goals and language.
• Clarify your objectives: What outcome are you seeking - a pilot project, a supply relationship, or a strategic alliance? Be realistic about scope, timing, and resourcing.
• Gather evidence: Pull together short case studies, metrics, testimonials, and credentials that speak directly to the opportunity.
• Protect sensitive information: If you need to share commercially sensitive details at this early stage, consider using a Non-Disclosure Agreement before you exchange specifics.
• Check your business basics: Make sure your branding and registrations are consistent and current - for example, understand the difference between your business name vs company name, and keep your corporate profile and marketing assets up to date.
• Protect your brand: If your pitch leans on a distinctive name or logo, consider whether it’s time to register your trade mark.

This preparation helps you write with confidence, reduces the chance of oversharing, and sets you up for quicker next steps if you’re shortlisted.

How To Write An Expression Of Interest (Step-By-Step)

Every EOI should be tailored to the opportunity, but most follow a clear, scannable structure. Keep paragraphs short and make every sentence earn its place.

1) Subject Line Or Heading

State what this is and what it’s for. For example: “Expression of Interest - Supply Partnership with ” or “EOI: Joint Venture Collaboration (Renewable Project)”.

2) Introduce Your Business

In one or two sentences, say who you are and what you do. Add a credibility cue (years in market, customers served, certifications, or a standout result).

Example: “I’m Taylor Nguyen, Managing Director of Coastline Analytics, an Australian data firm helping multi-site retailers reduce shrinkage and improve stock turns.”

3) State Your Purpose

Clarify why you’re writing and name the opportunity so there’s no ambiguity. If you’re responding to a public call, refer to the reference number or title.

Example: “We’re submitting this expression of interest for your National Asset Visibility Initiative (Ref: NAVI-2025).”

4) Prove Fit: Capabilities And Experience

Show, don’t tell. Use short bullets or compact paragraphs tied to the recipient’s goals or criteria:

• Relevant experience with brief outcomes (e.g. “Cut average pick time by 18% across 42 stores”).
• Key strengths (technology, team, certifications, geographic reach).
• Your differentiators (IP, methodology, partnerships, speed to deploy).

Keep it specific to the opportunity. If needed, mention attached case studies or a concise company profile.

5) Your Approach Or Contribution

Outline how you’d work together. Focus on the first phase (e.g. discovery, pilot, or proof-of-concept), expected deliverables, and the resources you’d commit.

You can add a high-level timeline or milestone list if that helps the reader see momentum without locking you into detailed scope.

6) Address Selection Criteria

If the EOI request lists criteria, mirror that language and answer each point succinctly. This makes it easier for assessors to tick off requirements and reduces back-and-forth.

7) Risks, Assumptions And Dependencies (Optional)

Two or three lines acknowledging key assumptions (e.g. data access, stakeholder availability) can demonstrate maturity and reduce misunderstandings later.

8) Invite Next Steps And Provide Contact Details

Close with a clear call to action: availability for a meeting, a proposed workshop, or an invite to review your attachments. Include your direct contact details.

Example: “We’d welcome a short call next week to discuss your priorities and our proposed pilot. I can be reached on or .”

9) Attachments (If Relevant)

If you add references or case studies, keep them brief and clearly labelled. Flag them in the body so the reader knows what to look for.

Legal Considerations In Australia: Are EOIs Binding, Privacy, ACL And Competition?

Even at the EOI stage, it pays to think about legal settings so you can move quickly and safely if you’re shortlisted.

Are EOIs Binding?

Generally, EOIs are not intended to be legally binding - they’re an invitation to talk. That said, specific promises within an EOI (for example, confidentiality, exclusivity or process commitments) can be enforceable depending on the wording and the parties’ intent.

If you’re sharing sensitive information, keep details high-level or pair your EOI with a Non-Disclosure Agreement. If you want to be clear that no offer is being made, add a simple line such as: “This EOI is non-binding and provided for evaluation purposes only.”

What About MOUs?

Parties sometimes follow a successful EOI with a Memorandum of Understanding (MOU). Whether an MOU is binding depends on its wording and the parties’ objective intent. Some MOUs create obligations; others don’t. If you use one, be clear about which parts (if any) are intended to be legally binding. For more detail, see the comparison of MOU vs contract.

Privacy And Data (APP Entities)

Australia’s Privacy Act 1988 and the Australian Privacy Principles (APPs) generally apply to “APP entities” - typically businesses with annual turnover of more than $3 million, and some others regardless of turnover (for example, health service providers or businesses trading in personal information).

If you’re an APP entity and you’ll handle personal information as part of the opportunity, ensure your internal practices and your public-facing Privacy Policy reflect what you intend to do. If you’re under the $3 million threshold and not otherwise caught by the Act, following privacy best practice still builds trust and reduces risk.

Australian Consumer Law (ACL) And Competition Rules

The Australian Consumer Law (in Schedule 2 of the Competition and Consumer Act 2010) prohibits misleading or deceptive conduct - a key risk whenever you make claims in an EOI. Keep your statements accurate, capable of being substantiated, and avoid overpromising. You can read more about common ACL issues like misleading or deceptive conduct and representations.

Separate to consumer protections, Australia’s competition rules restrict collusion, bid rigging, and certain exclusive dealing behaviours. If you’re submitting an EOI in a competitive process, ensure your approach to pricing, information-sharing, and teaming arrangements complies with competition law.

IP, Ownership And Use

Be careful about including proprietary detail in your EOI. If you reference unique methods, software, or processes, describe them at a high level unless confidentiality is in place. Consider whether to register your trade mark for brand protection as discussions progress.

Structure And Who Signs

Make sure it’s clear which entity is submitting the EOI (for example, your company rather than you personally). This helps avoid confusion later and aligns with the contracts that may follow. If in doubt, check your corporate structure and ensure your business name and company name are used correctly and consistently.

Documents You May Need As The Opportunity Progresses

If your EOI is shortlisted, you may move into a pilot, a supplier evaluation, or contract negotiations. At that point, the right documents help lock in scope, manage risk, and protect your IP.

• Non-Disclosure Agreement (NDA): Protects confidential information during deeper discussions and due diligence. A short, mutual NDA is common at this stage.
• MOU or Heads of Agreement: Records the parties’ intentions, key terms to negotiate, and any binding elements (like confidentiality or exclusivity). Whether it’s binding depends on wording and intent.
• Service Agreement: If you’ll provide services, a tailored Service Agreement should cover scope, deliverables, pricing, timelines, IP, liability and termination.
• Supply Agreement: If you’ll supply goods, you’ll want clear terms on specifications, delivery, title and risk, warranty, and payment.
• Shareholders Agreement: If the partnership involves forming or joining a company together, a Shareholders Agreement sets rules for decision-making, equity, exits, and dispute resolution.
• Privacy Policy and Data Terms: If you’ll handle personal information (especially as an APP entity), ensure your Privacy Policy and any data processing clauses align with what you’ll actually do.

Not every deal needs all of these. Choosing the right document depends on the type of collaboration, who owns what IP, how money flows, and the risks both sides are willing to accept. Getting advice early can make negotiations smoother and faster.

Tips, Follow-Up And Common Mistakes

A strong EOI is brief, relevant and easy to assess. These quick tips can help you stand out and avoid missteps.

Make Your EOI Easy To Say “Yes” To

• Be concise: Aim for 1–2 pages, plus compact attachments if requested.
• Mirror the opportunity: Use the recipient’s language and directly address selection criteria.
• Back up claims: Include one or two hard numbers, a short case study, or a named credential.
• Flag availability: Offer a short meeting or discovery session to keep momentum.

Avoid These Common Mistakes

• Generic content: One-size-fits-all EOIs rarely progress. Tailor every time.
• Overpromising: Keep claims accurate and achievable to avoid ACL risks and difficult negotiations later.
• Oversharing: Don’t include trade secrets or sensitive pricing unless you have a Non-Disclosure Agreement in place.
• Entity confusion: Be clear about which entity is proposing (and will contract) to prevent rework later.

Follow Up Professionally

If you haven’t heard back within the timeframe provided (or 1–2 weeks if none was given), a short and polite follow-up is appropriate. Reiterate your interest, confirm availability, and ask if any further information would be helpful.

If you progress to negotiations or a pilot, set expectations early: who will lead, who will sign, what the first 30–60 days look like, and which terms must be agreed in principle before investing significant time.

Key Takeaways

• An EOI is a concise, non-binding introduction that showcases your fit for a partnership or opportunity and invites next steps.
• Do your homework first: research the recipient, define your objectives, gather evidence, and protect sensitive information (consider an NDA).
• Use a clear structure: heading, intro, purpose, capabilities, approach, criteria, and a simple call to action with contact details.
• Get the legal basics right: EOIs are usually non-binding, but specific promises can bind; privacy obligations primarily apply to APP entities; keep claims ACL-compliant and avoid competition law risks.
• As you progress, the right documents - NDA, MOU, Service or Supply Agreement, and (if relevant) a Shareholders Agreement - help manage risk and speed up negotiations.
• Tailor every EOI, keep it factual and concise, and follow up professionally to move the conversation forward.

If you would like a consultation on how to write an expression of interest for your business or partnership opportunities, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.