At A Glance
Business valuations are increasingly shaped by the cost of capital, which can move enterprise value even when a company’s operations remain strong. In a higher rate environment, business owners considering a sale, acquisition, buyout or ownership transition should understand how discount rates, earnings quality and company specific risk influence what buyers or appraisers may be willing to support.
What Rising Rates Mean for Your Company’s Worth
When business owners think about what drives their company’s value, they typically focus on revenue growth, profit margins or customer retention. These factors matter enormously. But there is a variable working quietly behind the scenes that can swing a valuation by millions of dollars without a single operational change: the cost of capital.
The rate environment has reached a turning point worth understanding. The Federal Reserve has held its benchmark rate steady through the first half of 2026, after a series of cuts in late 2024 and 2025, and current signals suggest rates will stay elevated longer than many owners assumed a year ago. For anyone contemplating a sale, an acquisition, a buyout or an ownership transition, this is the moment to understand how that backdrop shapes what buyers will pay.
What the Cost of Capital Actually Does
In nearly every income-based valuation, a business’s projected cash flows are discounted back to present value using a rate that reflects the risk an investor takes on by owning that business. That rate, whether expressed as a weighted average cost of capital (WACC) or derived through the build-up method, is tied to prevailing interest rates and market conditions. In plain terms, it answers a simple question: how much would an investor need to earn each year to make owning this business worth the risk? The higher that required return, the less a buyer can justify paying today.
Even small changes in the discount rate can materially affect enterprise value. A one percentage point increase in the discount rate can reduce enterprise value by 8 to 15 percent, sometimes more for businesses with longer earnings horizons. When rates climbed sharply from 2022 to 2023, average EBITDA multiples for small to midsize businesses fell from the 6 to 7 times range down to roughly 4 times. Those businesses had not gotten worse, but buyers and courts rarely separate that shift from a business’s own performance once a number is on the table.
Where Things Stand Today
The Federal Reserve cut rates three times in late 2024 and early 2025, bringing the target fed funds range to 3.50 to 3.75 percent, and has held that range steady through the first half of 2026, with some officials now signaling the next move could be a hike rather than a cut. Analysts have called 2026 a discount rate year rather than an earnings year, meaning the cost of capital, not earnings growth, is the primary constraint on what buyers will pay. The 10 year Treasury yield remains in the 4.5 to 5.0 percent range, and WACCs in the 10 to 15 percent range are common for lower middle market businesses.
How This Shows Up in Real Transactions
The cost of capital surfaces directly in the situations owners are most likely to face.
Mergers and acquisitions. A buyer’s offer reflects current capital costs, and a seller anchored to a 2021 multiple may be surprised by what the market will bear in 2026.
Buyouts and partner transitions. The valuation behind a buyout price is just as exposed to rate movement as a third party sale, and a stale valuation can leave one side overpaying or underpaying.
Divorce and other litigation matters. The discount rate is one of the most commonly challenged assumptions in expert testimony, since a rate out of step with market conditions can move the result meaningfully.
Estate planning and recapitalizations. Ownership transfers rely on the same discounting framework, and since owners often control the timing, there is advantage in acting with an informed view of capital costs.
In each case, the discount rate is doing significant work in the background and asking how it was built is one of the most valuable things an owner can do before a number is finalized.
Where a Quality of Earnings Analysis Fits In
A valuation answers what a business is worth. A quality of earnings (QoE) analysis answers a related question: how reliable are the earnings that valuation is built on? The two are often treated as separate workstreams, but they reinforce each other directly.
A QoE engagement normalizes earnings by identifying one time items, owner specific expenses and accounting adjustments that distort a business’s true cash flow. That normalized figure is exactly what gets discounted back to present value, so an unreliable earnings number undermines even a carefully selected discount rate. A clean, well supported QoE analysis also narrows the company specific risk premium layered on top of the base rate, since it reduces the information risk a buyer, appraiser or court must account for. In an M&A process, that gives a seller’s valuation credibility with buyers and lenders. In a buyout or litigation matter, it gives both sides a more defensible foundation and narrows the room for opposing experts to challenge the earnings base itself.
What Business Owners Can Do About It
While no business can control the rate environment, owners can take deliberate steps to reduce the risk premium that appraisers and buyers layer on top of the base rate.
- Reduce revenue concentration. A business where one customer represents 30 percent or more of revenue carries meaningful risk, and diversifying the customer base narrows the premium applied in valuation.
- Build recurring, predictable cash flows. Subscription or retainer based revenue is valued at a premium over project by project income because it reduces uncertainty, and lower uncertainty means a lower discount rate.
- Strengthen management depth. Businesses that rely heavily on their owner are viewed as riskier, while a capable management team improves transferability and lowers the company specific risk in the rate.
- Clean up the financial statements. Normalized, audited or reviewed financials reduce the information risk appraisers must account for, and uncertainty always costs something in a valuation.
Market movements set the floor. Operational quality determines how far above that floor a business can reach. The businesses that command premium valuations will be those that have systematically reduced risk from the inside out.
A well-supported valuation does more than produce a number. It helps business owners understand the assumptions, risks and market conditions shaping that number, especially when the cost of capital can materially affect enterprise value. At Windham Brannon, we help owners evaluate the factors that influence value, strengthen the support behind key assumptions and prepare for transactions, ownership transitions, estate planning or litigation matters with greater confidence. For more information on valuation services that match your business needs, reach out to Matt Stelzman or your Windham Brannon advisor today.
Frequently Asked Questions
How does the cost of capital affect business value? A higher cost of capital increases the return an investor needs to justify the risk of ownership, which can lower the value a buyer or appraiser places on projected cash flows.
Why do interest rates matter in a valuation? Interest rates influence discount rates, financing costs and buyer expectations, so rate changes can affect valuation even if the business itself has not materially changed.
What is the role of a quality of earnings analysis? A quality of earnings analysis helps confirm whether reported earnings reflect reliable, repeatable cash flow, giving buyers, appraisers and courts a stronger foundation for valuation.
How can business owners support a stronger valuation? Owners can reduce company specific risk by diversifying revenue, building recurring cash flow, strengthening management depth and maintaining clean financial statements.
