Financial KPIs that determine a tech startup's valuation

Financial  KPIs are indicators that measure a startup's revenue, profitability, liquidity, efficiency, and solvency.

They function as a financial X‑ray of the company, revealing whether the business can scale, sustain attractive margins, and maintain healthy cash dynamics. 

While Customer Acquisition Cost (CAC), Lifetime Value (LTV), and churn rate are essential KPIs for evaluating business model efficiency and unit economics, other financial indicators—such as ARR, gross margin, EBITDA, and burn rate—have a direct impact on valuation and applicable multiples.

Startup valuation can be calculated by applying market multiples to revenue or, alternatively, through methodologies such as Discounted Cash Flow (DCF), which estimates the present value of future cash flows adjusted for risk.

There is no single formula for valuing a startup. However, regardless of the methodology used, financial KPIs remain decisive, although their relative importance varies by stage. 

The following examples illustrate how this works in practice.

This method is based on comparing the startup with similar companies that have been funded or acquired. Multiples are applied to metrics such as Annual Recurring Revenue (ARR) or total revenue. 

The simplified formula is: 

In these calculations, ARR or annual revenue typically serves as the base metric. KPIs such as growth rate, gross margin, retention, and go‑to‑market efficiency act as drivers that justify higher or lower multiples.

As a general rule, if CAC is high or the LTV/CAC ratio falls below 3, the business model is considered inefficient and carries a higher probability of failure. 

That said, it all depends on the phase in which the project is: 

• In early‑stage startups, LTV/CAC ratios below standard benchmarks may be acceptable if accompanied by strong growth, progressive improvements in commercial efficiency, and a reasonable CAC payback period.
• In growth‑stage or mature startups, the 3:1 benchmark becomes more relevant when assessing sustainability and profitability.

The DCF method projects future cash flows, typically over a three-to-seven-year period, and discounts them back to present value using a high discount rate that reflects startup risk.

Discount rates for startups often range between 30% and 50% because startups are significantly riskier than mature businesses. 

Put simply, DCF attempts to determine what a startup is worth today based on the cash it is expected to generate in the future.

In this context, the KPIs that matter are the cash available, the speed at which a project consumes capital before becoming profitable (burn rate), operating margin and revenue projections.

Under this approach, investors determine a startup’s current value based on how much they expect to earn in the future if execution is successful.

A typical scenario assumes that capital invested today should be multiplied by 10x or more within five to seven years, usually through an acquisition or IPO. In other words, investors target a predefined return on investment (ROI) .

The modus operandi is as follows:

• Step 1: Estimate exit value. 
• Step 2: Divide the exit value by the desired return multiple to determine the company’s current value before investment (pre-money).

Post-money valuation formula: 

From the estimated exit value, the investor applies a target return multiple to calculate the company’s present value.

Pre-money valuation:

In high‑risk scenarios—such as deep tech—investors increase the required return multiple.

The seven financial KPIs  outlined below reveal the company’s current financial health and provide a tangible view of its growth capacity, sustainability, and attractiveness to investors.

This is the annualized recurring revenue that a company generates. It is important in SaaS and subscription-based business models.

ARR Formula

In this case, the indicator measures the percentage increase in revenue by comparing the current period with the same period of the previous year.

YoY growth formula: 

Gross margin measures the scalability of the project by indicating what percentage of each euro remains after subtracting the direct costs of delivering the product or service.

Gross margin formula: 

This indicator focuses on the operating profitability of a business before financial and accounting effects, excluding extraordinary or non-recurring expenses.

EBITDA formula: 

Burn rate easures how much cash the company consumes each month, while runway indicates how many months it can operate before requiring additional funding.

Since the runway is subject to the burn rate, they are usually valued together. 

Formulas for the monthly burn rate and runway: 

This sustainability KPI shows the cash generated by the company's core operations, excluding investment decisions and financing activities.

Simplified operating cash flow formula: 

However, since EBITDA omits actual taxes and interest, operating cash-flow is more accurately calculated as follows: 

The revenue multiple establishes the relationship between enterprise value and annual revenue. It is a simple, fast and effective valuation method for tech startups. 

Revenue multiple formula: 

At the seed and Series A stages, investors prioritize KPIs that demonstrate early traction, capital efficiency, and business model viability. That is why these five metrics are particularly critical:

• MRR/ARR. Predictable recurring revenue that proves real traction.

• MoM / YoY growth %. Demonstrates scaling speed and business momentum.

• Gross margin. Indicates efficiency and long‑term profitability potential. 

• Runway. Shows how long the company can operate with its current cash position.

• CAC payback. Measures how quickly customer acquisition costs are recovered, a key indicator of marketing and sales efficiency. 

At this point, if your objective is to maximize company value Bolboreta Impulsa supports founders and technology companies throughout the entire journey: strategic preparation, optimization of key KPIs, final negotiation, and transaction closing.