How Interest Rates Affect Business Valuations
Synopsis
Higher interest rates can lower business valuations even when revenue and profits remain strong. Here’s how rates affect valuations and what owners can do to protect their business value.
If you've been wondering why your business might be worth less today than it was two or three years ago, even though revenue is up and the team is running well the answer probably starts with interest rates.
The RBA raised the cash rate three times in 2026, moving from 4.10% to 4.35%, reversing nearly all of the easing delivered across 2025. The June decision was to hold, with CBA economists now expecting rates to stay at this level into 2027.
That matters for business owners not just because borrowing costs have gone up, but because interest rates feed directly into how businesses are valued in ways that don't always show up in your revenue or profit figures.
The Mechanics: Why Higher Rates Push Valuations Down
The most common way to value a business with predictable cash flows is a discounted cash flow model, or DCF. The idea is straightforward: take the money the business is expected to generate in future years and work out what that's worth in today's dollars.
The rate you use to discount those future cash flows is called the discount rate, and it's directly tied to prevailing interest rates. When rates rise, the discount rate rises with them. When the discount rate rises, future cash flows are worth less today. The business valuation falls even if the underlying performance hasn't changed at all.
Here's a simple illustration. A business expected to generate $500,000 per year in cash flow:
| Discount Rate | Estimated Business Value |
| 8% | ~$6.25 million |
| 10% | ~$5 million |
| 12% | ~$4.17 million |
A 4 percentage point shift in the discount rate which is well within the range of what's happened in recent years can reduce an indicative valuation by more than 30%. The business hasn't changed. The rate environment has.
It's Not Just the Model: It's the Buyers Too
Even if you're not running a formal DCF, interest rates affect who can actually afford to buy a business and what they can pay.
Most business acquisitions involve some level of debt financing. When borrowing costs go up, buyers can service less debt for the same repayment which means they can offer less for the business. Higher borrowing costs reduce buyer capacity, shrink the pool of qualified acquirers, and reduce market liquidity overall. Fewer buyers competing for a business almost always means lower sale prices.
This is why business owners sometimes find themselves getting lower offers than they expected, even from buyers who are genuinely interested. It's not always about appetite, it's about what the numbers allow.
Which Businesses Feel It Most
The impact isn't the same across every business type. Businesses with significant debt on their balance sheets, high capital expenditure requirements, or heavy exposure to discretionary consumer spending feel the rate rises most acutely.
Growth companies particularly those not yet profitable are hit disproportionately hard. Their value sits mostly in projected future earnings, and a higher discount rate punishes long-dated cash flows more than near-term ones. A company whose value depends on what it might earn in five or ten years takes a bigger valuation hit than one generating strong cash flow today.
Asset-light, cash-generative businesses hold up better. Consistent revenue, low debt, strong margins these characteristics become more valuable in a high-rate environment, not less.
The Private vs Public Market Gap
One thing worth understanding if you're thinking about selling or raising capital: private valuations tend to lag public market repricing. When listed companies re-rate quickly as rates rise, private businesses often don't adjust as fast partly because there's no daily market price, and partly because founders tend to anchor to what their business was worth at the last funding round or valuation.
This creates a gap between what founders expect and what investors or acquirers are willing to pay. It's one of the more frustrating dynamics of the current environment, and it tends to show up most painfully during due diligence.
What This Means If You're Thinking About Selling
Timing a sale around interest rate cycles is easier said than done. But there are practical things business owners can do right now.
The most important is to model your valuation under different discount rate assumptions rather than relying on a single number. If your business is only worth what you need it to be worth at an 8% discount rate, you should know what happens at 10% or 12% because a buyer's adviser certainly will.
Focus on what you can control. Strong margins, predictable recurring revenue, low customer concentration, clean books these factors reduce the risk premium a buyer applies, which partially offsets the mechanical impact of higher rates. Capital-efficient, profitable businesses are being rewarded more selectively in the current environment, while cash-burning growth companies face much tougher scrutiny.
And if the RBA does begin cutting CBA economists have flagged a possible cut as early as May 2027 valuations should recover alongside it, though private market repricing typically lags the public market response by six to twelve months.
FAQs
Why does my business valuation go down when interest rates rise if my revenue hasn't changed?
Because valuations are based on the present value of future cash flows, and the rate used to discount those cash flows rises with interest rates. Higher discount rate, lower present value regardless of underlying performance.
Which businesses are most affected by rising interest rates?
Highly geared businesses, capital-intensive operations, and growth companies with profits weighted toward future years feel the impact most. Asset-light, profitable, cash-generative businesses are more insulated.
What is WACC and why does it matter for business valuation?
WACC stands for weighted average cost of capital, it's the blended cost of all the capital a business uses, both debt and equity. It's commonly used as the discount rate in valuation models, and it rises when interest rates rise, directly reducing business valuations.
Will valuations recover when the RBA cuts rates?
Generally yes. Lower rates reduce the discount rate, which increases the present value of future cash flows. But private company valuations typically lag public market repricing by several months, so the recovery isn't always immediate.
What can a business owner do to protect valuation in a high-rate environment?
Focus on profitability, reduce debt where possible, build predictable recurring revenue and keep books clean. These factors reduce the risk premium buyers apply, which partially offsets the mechanical impact of higher rates on valuation models.
At Inspirepreneurs Magazine, covering entrepreneurship, business failures, and the human stories behind the world's most ambitious founders. She writes at the intersection of strategy and storytelling.
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