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Business Acquisitions

Due Diligence: Look before you leap

Your opportunity to verify everything the seller has told you before you commit. Skipping or rushing this step is one of the most expensive mistakes buyers make.

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Understanding the Process

What due diligence means

Due diligence is the investigation phase between agreeing on price and completing the purchase. The sale agreement usually gives you a defined period to investigate the business, during which you can walk away if you discover problems.

Verification Before Commitment

Every claim the seller has made about the business needs to be verified against actual documents and records.

Confirm Representations

Test whether the seller's representations and warranties in the sale agreement are accurate.

Find Problems Early

Once the sale completes, the business problems become your problems. Identify issues while you can still negotiate.

The Checklist

Financial due diligence

Verify the numbers that form the basis of your valuation. Understand not just what the business earned historically, but whether that performance is likely to continue.

Three Years of Accounts

Request full financial statements for at least three years. Look for trends, unusual items, and consistency.

Tax Returns & Compliance

Verify that tax returns have been filed and taxes paid. Outstanding tax obligations can become your liability.

Aged Receivables & Payables

Review who owes the business money and whether they are likely to pay. Old debts may be uncollectable.

Cash Flow Patterns

Profit and cash flow are not the same. Understand the timing of income and expenses, especially for seasonal businesses.

Bank Statements

Bank statements verify the cash position and show the real flow of money through the business.

Outstanding Debt

Identify all business debts including loans, equipment finance, and director loans. Understand what transfers with the business.

Consider engaging an accountant

For any significant business purchase, having an accountant review the financial records is worth the investment. They will spot issues that non-specialists miss.

Legal Review

Legal due diligence

Examine the business's legal structure, contracts, and compliance. Understand what rights and obligations transfer with the business.

Ownership & Title to Assets

Verify that the business actually owns the assets being sold. Check for security interests registered on the PPSR.

Customer & Supplier Contracts

Review key contracts. Can they be assigned to you? Do they contain change of control provisions?

Employment Agreements

Review employment agreements for all staff. Understand leave balances, notice periods, and special arrangements.

Intellectual Property

Verify ownership of trademarks, domain names, patents, and software. Many businesses use IP without clear ownership.

Litigation History

Check for any past, current, or threatened litigation. This includes employee claims and regulatory actions.

Regulatory Compliance

Understand what licences and consents the business needs. Verify they are current and transferable.

Operational Review

Operational due diligence

Look at how the business actually runs. Understand whether the business can continue to perform after you take over.

Key Customer Concentration

If one customer represents more than 20% of revenue, that is a significant risk. What happens if they leave?

Supplier Dependencies

Critical suppliers can hold significant power. Are there alternative suppliers? Could supply be disrupted?

Key Person Risk

Would the business function without the current owner? Are there key employees whose departure would be catastrophic?

Systems & Technology

What systems run the business? Are they adequate and maintained? What needs upgrading?

Physical Assets

Inspect physical assets personally. Plant and equipment may look fine in the accounts but be in poor condition.

Warranties & Returns

For product businesses, understand warranty obligations. Historical products can generate future claims.

Warning Signs

Red flags to watch for

Some issues encountered during due diligence are serious enough to reconsider the entire transaction.

Reluctance to Provide Information

Sellers who delay, make excuses, or become defensive when asked for documents are concerning. A seller with nothing to hide makes information readily available.

Missing or Incomplete Records

Poor record-keeping may reflect bad administration, but it also makes verification impossible. If you cannot verify claims, you cannot rely on them.

Unexplained Performance Changes

Sudden improvements in profitability before sale, or unexplained drops in recent periods, need investigation.

Unusual Timing on Major Decisions

Long-term contracts signed just before sale, key staff departures, or recent equipment purchases all warrant scrutiny.

Key Relationship Instability

If major customers, suppliers, or employees are leaving or indicating they will not continue after sale, the business you are buying may not be the business you saw.

The Decision

When to walk away

Not every business purchase should proceed. Due diligence exists precisely to give you the opportunity to make an informed decision.

Consider walking away if:

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Material misrepresentation: The seller has made significant false statements about the business
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Undisclosed liabilities: Significant debts, claims, or obligations were not disclosed
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Deal-breaker conditions: Key customers, suppliers, or staff will not continue post-sale
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Gut feelings matter: If something feels wrong and you cannot explain why, that instinct may be worth heeding

The sunk costs of due diligence are small compared to buying a business that turns out to be worth less than you paid. Walking away is disappointing but sometimes necessary.

Key Takeaways

Due diligence is your opportunity to verify seller claims before committing

Cover financial, legal, and operational aspects thoroughly

Red flags should trigger deeper investigation or withdrawal

The lease is often one of the most important documents to review

Engage professionals - the cost is worth it for significant purchases

Walking away from a bad deal is sometimes the right decision

Related Guide

Navigate a business sale or acquisition from start to finish.

Read the M&A Guide

Considering a business purchase?

We can help you conduct thorough due diligence and negotiate appropriate protections. Talk to us early so we can structure your investigation and protect your interests.

Or call us on 06 835 7394

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