Mergers And Acquisitions For Startups And SMEs: Due Diligence And Checklist

Mergers and acquisition (often shortened to “M&A”) can be one of the fastest ways to scale your startup, enter a new market, acquire a competitor’s customers, or bring in a strategic partner.

But for many Australian founders and SME owners, M&A can also feel like stepping into a process full of unfamiliar documents, tight timelines and high-stakes negotiations. You might be asking: What do I actually need to do before I sign anything? Or how do I avoid buying hidden problems?

The good news is that most M&A risks are manageable when you approach the deal like a project: clear milestones, practical due diligence, and the right documents at the right time.

Below, we’ll walk you through the key legal steps in an M&A process in Australia, what due diligence usually involves, and a post-deal checklist you can use to make sure you’re actually getting the value you paid for.

What Counts As “Mergers And Acquisitions” For Startups And SMEs?

“Mergers and acquisitions” is an umbrella term that covers a range of transactions where businesses combine or change hands.

For Australian startups and SMEs, the most common deal structures include:

• Share sale (company acquisition): You buy the shares in a company, meaning you take over the entire company (including its assets, contracts, employees and liabilities).
• Asset sale (business acquisition): You buy selected assets of a business (for example, IP, equipment, inventory, customer contracts and goodwill). Depending on the deal and the documents, certain liabilities can still transfer (or effectively become your problem), so it’s important to define exactly what is (and isn’t) being assumed.
• Merger: Two businesses combine into one group (this might be done through a share sale, asset sale, or a restructure where both owner groups end up as shareholders in a new or existing entity).
• Acqui-hire: You acquire a business primarily to secure the team (and possibly the technology), often with a strong focus on employment, incentives and IP transfer.

Which structure is “best” depends on what you’re buying, what you want to avoid inheriting, and what the seller is prepared to offer.

Share Sale Vs Asset Sale (Why It Matters)

This distinction drives the entire legal approach to your deal.

• In a share sale, you’re stepping into the shoes of the current owner. That can be simpler operationally (the company continues as-is), but you need to be confident you’re not inheriting unknown liabilities (tax liabilities and reporting issues, employee claims, litigation, compliance gaps, unpaid entitlements, etc.).
• In an asset sale, you can usually “pick and choose” what you’re buying (and what you’re not). This can reduce risk, but it requires more work to transfer assets, assign contracts, move IP, and handle staff arrangements.

Either way, due diligence and deal documentation are what protect you.

Pre-Deal Legal Steps: Set Your Strategy Before You Start Negotiating

Before the term sheet, before the price negotiation, and definitely before you sign anything binding, it helps to get clear on a few fundamentals.

1) Identify What You’re Actually Buying (And Why)

It sounds obvious, but many M&A disputes come down to mismatched expectations. Write down, in plain English:

• Which assets are essential (IP, customer list, key staff, stock, equipment, licences)?
• What would be a deal-breaker (for example, losing a major customer contract)?
• What value you expect to unlock post-deal (cross-selling, cost savings, market entry, product capability)?

This becomes your roadmap for due diligence and drafting.

2) Get Your Confidentiality Settings Right Early

In most mergers and acquisition scenarios, you’ll receive sensitive commercial information before a deal is final (pricing, margins, supplier terms, source code, customer lists).

That’s why a properly drafted Non-Disclosure Agreement is a common first step, even before the seller opens the data room.

3) Decide Who Negotiates And Who Signs

If your business is a company, you’ll want clarity on:

• who has authority to negotiate terms;
• who approves the final deal internally (directors, shareholders, investors); and
• who signs the transaction documents.

If you’re bringing in investors or external finance, approvals and conditions can affect timing and leverage, so it’s worth planning early.

4) Use A Term Sheet (But Know What’s Binding)

Many deals start with a term sheet (or heads of agreement). This is where you outline the commercial deal: price, structure, exclusivity period, key conditions, and timelines.

Even if a term sheet is “non-binding”, some clauses often are intended to be binding (like confidentiality, exclusivity and costs). That’s where careful drafting matters, because the term sheet often sets the “tone” for the final contract.

Due Diligence: The Checks That Protect You Before You Buy

Due diligence is where you verify what the seller has told you, uncover risks, and work out what protections you need in the final deal documents.

Think of it as answering one core question: Are we buying what we think we’re buying, at the risk level we can accept?

For startups and SMEs, due diligence doesn’t need to be endless to be effective. It just needs to be targeted and thorough on the right issues.

Depending on your deal and budget, you might run a mix of legal, financial, tax and technical due diligence. From a legal perspective, a structured approach like a legal due diligence package can help you focus on the areas that usually cause real-world problems after settlement.

Key Legal Due Diligence Areas (What To Look For)

• Corporate structure and ownership: confirm the entity, shareholders, options, convertible notes, and whether any consents are required to sell.
• Material contracts: customer and supplier contracts, leases, distribution arrangements, referral agreements, and whether they can be assigned (or if they terminate on a “change of control”).
• Intellectual property (IP): confirm ownership of software, trademarks, domains, designs, content, and whether contractors assigned IP correctly.
• Employment and contractors: check employment agreements, contractor arrangements, incentive plans, unpaid entitlements, and whether key staff will stay post-deal.
• Regulatory and compliance: licences, permits, industry obligations, marketing claims, and consumer law compliance (especially if the business is customer-facing).
• Privacy and data: understand what personal data is held, whether collection and use is compliant, and whether a Privacy Policy matches actual practices.
• Litigation and disputes: existing disputes, threatened claims, chargebacks, complaints, and refund patterns.
• Assets and security interests: confirm what assets are owned vs leased/financed, and whether any financiers have security interests registered.

Common “Red Flags” We See In SME M&A

Some issues are fixable, and some are leverage for price adjustments or stronger warranties. But it’s better to identify them early than after you’ve paid.

• Key contracts can’t be assigned: you may need customer/supplier consent, or you risk losing revenue immediately after settlement.
• IP isn’t properly owned by the business: for example, a founder or contractor still owns key software or brand assets.
• Employment arrangements are informal: missing documentation can create disputes over pay, duties, restraints, or entitlements.
• Undisclosed liabilities: tax issues, employee entitlements, refunds, warranty claims, or pending disputes (these should be checked with the right mix of legal and accounting advice).
• Security interests exist over business assets: a lender might have rights over assets you assumed were “clear”. This is often managed through payout letters and releases at settlement, but it must be identified.

If you discover security interests or financing arrangements, it may be relevant to understand how instruments like a General Security Agreement can affect business assets and settlement steps.

Deal Documents And Legal Steps To Get The Transaction Signed (And Enforceable)

Once you’ve negotiated the commercial terms and you’re comfortable with due diligence findings, the next stage is documenting the deal properly.

This is where you “lock in” what is being sold, how the money is paid, what must happen before completion, and what happens if something goes wrong.

The Core Agreements In A Typical M&A Deal

Not every deal uses every document, but for startups and SMEs, common documents include:

• Share Sale Agreement (SSA): used for buying shares in a company; it covers purchase price, conditions, completion mechanics, warranties, indemnities, restraints, and post-completion obligations.
• Asset Sale Agreement: used for buying business assets; it lists exactly what assets are sold and what liabilities (if any) transfer. For many SME transactions, an Asset Sale Agreement is the central document.
• Deed of Assignment / novation documents: required where contracts need to be transferred to the buyer, especially if the contract requires the other party’s consent.
• Employment documentation: if you’re bringing across staff or retaining key employees, you may need new agreements, incentives, or at least a clear transition plan. A tailored Employment Contract can be critical where retention is part of the deal value.
• Transitional Services Agreement (TSA): if the seller will keep helping for a period (handover, introductions, technical support, bookkeeping), this sets expectations and reduces “handover ambiguity”.
• Shareholders Agreement (if owners remain): if the deal results in ongoing joint ownership (for example, a merger structure or earn-out where the seller stays involved), a Shareholders Agreement can clarify control, decision-making, exit rights and dispute pathways.

Conditions Precedent (The “Must Happen Before Completion” List)

Most M&A agreements include conditions that must be satisfied before the deal completes. Common examples include:

• financing approval;
• third-party consents (landlord consent, customer contract consent, supplier approval);
• release of security interests by lenders;
• board or shareholder approvals;
• completion of key employee arrangements.

If you’re the buyer, conditions are one of your main safety mechanisms. They let you pause or exit if a core assumption turns out to be wrong.

Warranties, Indemnities And Earn-Outs (Risk Allocation Tools)

This is where M&A becomes less about “paperwork” and more about managing risk.

• Warranties are promises from the seller about the state of the business (for example, that financial statements are accurate, contracts aren’t in breach, IP is owned, and there are no undisclosed disputes).
• Indemnities are stronger protections for known risks (for example, “if an ATO audit results in a liability relating to pre-completion periods, the seller pays”).
• Earn-outs link some of the purchase price to future performance. These can bridge valuation gaps, but they need careful drafting so the rules are clear (metrics, control, reporting, dispute resolution).

If you’re buying a startup where value is tied heavily to people, product and pipeline, these clauses are often the difference between a good deal and an expensive lesson.

Post-Deal Checklist: What To Do After Completion So The Deal Actually Works

Completion day can feel like the finish line, but practically it’s the start of the integration phase.

A post-deal checklist helps you capture the value you paid for, reduce disruption, and prevent loose ends from becoming disputes.

1) Confirm You’ve Received (And Can Use) What You Bought

• Transfer of domain names, hosting accounts, key software accounts and admin access
• Delivery of IP materials (source code repositories, design files, brand assets)
• Handover of customer lists, lead pipelines and sales documentation (where lawful and agreed)
• Physical assets delivered and condition confirmed (if relevant)

If you’re buying “goodwill”, make sure practical steps (introductions, announcements, handover support) are built into the agreement and actually completed.

2) Finalise Contract Transfers And Third-Party Consents

Even where completion has occurred, some consents and transfers might still be pending (especially in asset sales).

• Confirm which customer and supplier agreements were assigned vs need follow-up
• Update purchase orders and invoicing details
• Notify service providers and update billing accounts

This step is also about avoiding accidental breaches, like operating under a contract that technically wasn’t transferred properly.

3) Deal With Employees And Key People Quickly (And Carefully)

If employees are part of the value, don’t leave their transition to “later”. You’ll want to address:

• who is transferring and on what terms (this can vary depending on whether it’s a share sale or asset sale, and the approach taken to offers and acceptance);
• what happens to accrued entitlements (annual leave, long service leave), which can depend on the transaction structure and any applicable instruments;
• superannuation and payroll setup;
• role clarity and reporting lines;
• confidentiality and IP obligations.

Integration is where misunderstandings can turn into resignations (or disputes). Clear documentation and good communication make a big difference.

4) Update Your Compliance, Policies And Public-Facing Documents

M&A often changes how you collect and use customer data, how you describe products/services, and what you promise in marketing.

• Update website terms, privacy settings, and customer-facing communications if ownership has changed
• Review complaint handling, refunds and warranties (especially under Australian Consumer Law)
• Update internal policies if new staff, new systems or new data are involved

This isn’t just “admin”. It’s also reputation management.

5) Close Out The Money And Documents Properly

• Confirm payout of any seller finance, deferred consideration or earn-out tracking mechanisms
• Store signed documents securely (and in a way you can find in 12 months’ time)
• Diary warranty claim time limits, restraint periods and key deadlines
• Ensure any releases of security interests are completed and documented

Post-deal admin can feel tedious, but it’s often what prevents expensive disputes later.

Key Takeaways

• M&A deals for Australian startups and SMEs usually happen through either a share sale (buying the company) or an asset sale (buying selected business assets), and the legal steps differ significantly between the two.
• Before you negotiate price, you’ll want clarity on what you’re buying, what risks you can accept, and how the deal will be approved and signed.
• Due diligence is where you verify ownership, contracts, IP, employees, compliance, disputes and security interests, so you don’t inherit problems you didn’t price in.
• The key transaction documents (like a share sale agreement or asset sale agreement) should clearly set out price, conditions, completion steps, warranties/indemnities and any earn-out mechanics.
• A post-deal checklist helps you secure access to assets, transfer contracts properly, stabilise staff arrangements, update compliance, and close out settlement obligations.
• Getting legal advice early can make the process faster, reduce surprises, and strengthen your negotiating position when issues come up.

Note: This article is general information only and is not legal, financial or tax advice. M&A outcomes can vary depending on the transaction structure and your specific circumstances, so you should get advice tailored to your situation (including from an accountant or tax adviser where relevant).

If you’d like help with a mergers and acquisition matter for your startup or SME, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.