Burn Rate

The rate at which a company's existing customers cease doing business with it over a given period, typically expressed as an annual percentage. Customer attrition rate is a critical input to the valuation of customer relationship intangible assets under both the multi-period excess earnings method and the distributor method.

The rate used to convert a single-period earnings or cash flow figure into an indication of value, calculated as the discount rate minus the expected long-term sustainable growth rate. The capitalisation rate is the reciprocal of the capitalisation multiple and is used in the capitalisation of earnings method for businesses with stable, predictable income streams.

The annualised rate of return at which the net present value of all cash flows from an investment equals zero. IRR is the standard performance metric for private equity and venture capital funds, allowing comparison across investments with different holding periods and cash flow profiles.

The rate used to convert future expected cash flows into their present value, reflecting the time value of money and the risk associated with those cash flows. Selecting the appropriate discount rate is one of the most critical and sensitive decisions in intangible asset valuation, as small changes can materially alter the estimated fair value.

The proportion of available capacity — whether labour hours, machine time, or service capacity — that is actually deployed in productive activity. Utilisation rate is a key productivity metric for professional services, manufacturing, and SaaS infrastructure, directly influencing revenue efficiency and operating margins.

The number of months a company can continue operating at its current burn rate before running out of cash. Runway is calculated as current cash balance divided by monthly burn rate and is the most critical survival metric for pre-profit businesses.

The percentage increase in a company's revenue over a specific period, typically measured year-over-year or quarter-over-quarter. Revenue growth rate is a fundamental measure of business expansion, market traction, and the effectiveness of go-to-market strategy.

A discount rate that incorporates a premium reflecting the specific risks associated with a particular asset, cash flow stream, or investment. In intangible asset valuations, risk-adjusted discount rates are typically higher than the weighted average cost of capital to reflect the greater uncertainty inherent in intangible asset cash flows compared to tangible assets.

What are realistic burn rates and how do you avoid misrepresenting runway?

Founders often calculate optimistic runway (assuming perfect cost control) when actual burn is higher. Honest runway = (cash on hand) / (conservative monthly burn + 3-month buffer).

What is burn rate and runway?

Burn rate is monthly cash spending; runway is current cash divided by monthly burn rate, indicating how many months until capital runs out.