One of the most critical skills in buying a business is understanding how to value it properly. Overpay, and you may never see a return on your investment. Underbid, and you might miss out on a great opportunity.
This guide breaks down the key valuation methods used in New Zealand and what to watch out for.
What Is Business Valuation?
Business valuation is the process of determining the economic value of a business. It considers financial performance, assets, market conditions, and intangible factors like brand reputation and customer loyalty.
The Most Common Method: SDE Multiple
For small to medium businesses in NZ, the most widely used method is the Seller's Discretionary Earnings (SDE) multiple.
SDE represents the total financial benefit available to a single working owner. It's calculated as:
Net Profit + Owner's Salary + Owner's Perks + Depreciation + Interest + One-off Expenses = SDE
The SDE is then multiplied by a factor (the "multiple") to arrive at the business value:
Business Value = SDE × Multiple
Typical multiples in NZ range from 1.5x to 3.5x, depending on:
- Industry type
- Business maturity and growth trend
- Customer concentration risk
- Lease length remaining
- Owner dependency
- Staff stability
Asset-Based Valuation
For businesses with significant physical assets — restaurants, manufacturing, or retail with large inventory — an asset-based approach may be more appropriate.
This method values the business based on:
- Equipment and machinery (at fair market value, not purchase price)
- Inventory / stock at hand
- Leasehold improvements
- Vehicles
- Intellectual property
The formula: Asset Value + Goodwill = Business Price. Goodwill typically reflects 6-12 months of net profit.
Discounted Cash Flow (DCF)
Used for larger businesses with predictable future earnings, DCF projects future cash flows and discounts them back to present value. This is more complex and typically requires professional assistance.
Red Flags in Valuations
Watch out for these warning signs:
- Cash sales not recorded in the books (common in hospitality — but unverifiable income shouldn't be factored into price)
- Declining revenue trend disguised by one good year
- Owner doing 70+ hours per week (the SDE overstates what a normal owner would earn)
- Customer concentration — if one client represents 30%+ of revenue, that's a major risk
- Short lease with no renewal option
- Key staff threatening to leave
How OpenBiz AI Valuation Helps
OpenBiz offers a free AI-powered business valuation tool that considers 17+ data points including revenue, SDE, industry type, staff costs, lease terms, growth trends, and more. The AI generates a comprehensive report with estimated value ranges and detailed analysis — giving you a solid starting point before engaging professional valuers.
Tips for Buyers
- Always verify financials independently through an accountant
- Compare the asking price against industry benchmarks
- Factor in your opportunity cost (what else could you do with that money?)
- Consider the "price + stock at value" model common in NZ
- Don't forget working capital requirements post-purchase
- Get multiple opinions — use AI tools and professional valuers
Conclusion
Understanding valuation isn't just about numbers — it's about understanding risk. A business that looks expensive at 3x SDE might actually be a bargain if it has a 10-year lease, diversified customers, and systems that run without the owner. Conversely, a cheap business at 1.5x might be cheap for a reason.
Disclaimer: This article is for informational purposes only and does not constitute professional advice. Consult a licensed professional before making any business decisions.