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What Is Cash Burn Rate?

In this guide
Burn rate is the pace at which a company spends its cash reserves to cover operating expenses before it begins to generate positive cash flow from its operations.
read time
7 mins
released on
Sep 23
author
Firmbase
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What Is Cash Burn Rate?

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In modern finance, particularly for startups and growing companies, understanding the cash burn rate is vital for long-term sustainability. Often simply referred to as “burn rate,” this metric measures how quickly a company is depleting its available cash reserves. It’s a critical factor for businesses that haven’t yet reached profitability, as it helps in planning funding rounds, managing operations, and ultimately ensuring the company’s survival.

What Is Burn Rate?

Burn rate is the pace at which a company spends its cash reserves to cover operating expenses before it begins to generate positive cash flow from its operations. This metric is essential for startups and other businesses in their early stages of development, often relying on external funding rather than revenue from operations to sustain their activities. Burn rate is typically measured in terms of cash outflows monthly, making it a key figure in determining how long a company can continue to operate before requiring additional capital.

Why Is Burn Rate Important?

Understanding a company’s burn rate is essential for several reasons:

  • For FP&As: Burn rate is a critical metric for accurate financial forecasting and budgeting. FP&A teams can make informed decisions about resource allocation, funding requirements, and product development initiatives by understanding how quickly cash is being depleted.
  • For C-suite executives: Burn rate is a key indicator of a company’s financial health and sustainability. By monitoring burn rate, executives can assess the company’s ability to weather economic downturns, make strategic decisions about growth and investment, and identify potential risks associated with negative cash flow.
  • For investors: Burn rate provides valuable insights into a company’s financial performance and potential for future profitability. Investors can use burn rate to assess the company’s risk profile and determine the appropriate level of investment.

How To Calculate Burn Rate

Calculating burn rate involves assessing the company’s cash balance over a specific period, usually every month. The most straightforward calculation is to take the difference between the beginning and ending cash balances for a period and divide by the number of months in that period.

Example Calculation:

Suppose a company has $500,000 in cash at the beginning of the year and $200,000 at the end of the year. Over the course of the year, the company has spent $300,000. To find the monthly burn rate, you divide $300,000 by 12, resulting in a burn rate of $25,000 per month. 

Burn Rate Formula

The burn rate formula is a simple yet powerful tool for determining how long a company can continue operating before needing additional funding. The formula can be expressed as:

Burn Rate = (Beginning Cash Balance – Ending Cash Balance) / Number of Months

This formula can be adapted to reflect different time periods, whether you are calculating on a monthly, quarterly, or annual basis. The important thing is consistency in the period used for calculation, as this allows for accurate tracking over time.

How To Interpret Burn Rate

Interpreting the burn rate goes beyond just understanding how much cash a company spends. A high burn rate indicates that the company is spending its cash reserves rapidly, which could be a warning sign that it will need to secure additional funding sooner than anticipated. On the other hand, a low burn rate suggests that the company is managing its resources efficiently, extending its runway, and reducing the pressure to raise funds quickly.

Negative cash flow occurs when a company’s expenses exceed its income during a specific period. This can be common for startups and businesses experiencing rapid growth or making significant investments. While negative cash flow can be a concern, it’s important to note that it doesn’t always indicate financial trouble. It can also be a sign of healthy growth and investment in the future.

The context in which the burn rate is assessed is crucial. For instance, a high burn rate might be acceptable in the early stages of a startup if the company is aggressively investing in growth to gain a competitive edge in the market. However, if revenue generation needs to catch up to spending, this could lead to financial difficulties.

What Is a Good Cash Burn Rate?

Determining a “good” cash burn rate depends on the nature of the business and its stage of development. In general, a good cash burn rate aligns with the company’s strategic goals while leaving enough cash runway to achieve profitability or secure additional funding. Startups often target a burn rate that allows for at least 12 to 18 months of cash runway, meaning they have enough cash on hand to continue operations for that period without needing new capital.

For more mature companies, the focus shifts to maintaining a balanced burn rate that supports growth initiatives while ensuring long-term sustainability. The key is to align the burn rate with the company’s revenue-generating potential and the timeline for achieving financial self-sufficiency.

SaaS Startup Burn Rate Calculation Example

SaaS KPIs used by modern companies typically have high upfront costs for software development, marketing, and customer acquisition, making burn rate an important metric for their sustainability. Consider a SaaS startup with an initial funding of $1 million. In the first six months, the company spends $600,000 on development and marketing, leaving it with $400,000 in cash.

The burn rate for this startup would be:

Burn Rate = (1,000,000 – 400,000) / 6 = $100,000 per month

At this burn rate, the company has four more months of cash runway before running out of cash, meaning it will need to reduce spending or secure additional funding to continue operations.

Run Rate vs. Burn Rate: What’s the Difference?

While burn rate measures how quickly a company is spending its cash reserves, run rate refers to its projected revenue or financial performance over a future period, typically extrapolated from current performance. In essence, run rate is a forward-looking metric that estimates how much revenue a company can generate, assuming current trends continue. The key difference is that burn rate focuses on costs, while run rate focuses on revenue.

Both metrics are important for understanding a company’s financial health. Ideally, a company’s run rate will eventually exceed its burn rate, signaling that it is on the path to profitability.

Gross Burn Rate vs. Net Burn Rate

When analyzing burn rate, it’s important to distinguish between gross burn rate and net burn rate:

  • Gross Burn Rate: The total amount of cash spent each month without considering any incoming cash.
  • Net Burn Rate: The difference between cash inflows (such as revenue or additional funding) and cash outflows.

Understanding the difference between gross and net burn rates helps professionals accurately assess their company’s financial health and runway.

Additional Factors Affecting Burn Rate

Beyond the core factors mentioned earlier, several other elements can influence a company’s burn rate:

  • Inflation: Rising prices can increase operating costs, leading to a higher burn rate.
  • Economic conditions: Recessions or downturns can impact revenue and expenses, affecting burn rate.
  • Unexpected expenses: Unforeseen costs, such as legal disputes or natural disasters, can significantly impact burn rate.
  • Changes in interest rates: Fluctuations in interest rates can affect borrowing costs and investment returns, influencing burn rate.
  • Access to financing: A company’s ability to secure funding from banks or other financial institutions can significantly impact its runway and overall financial health.
  • Industry trends: Changes in industry trends, regulations, or consumer preferences can impact a company’s financial performance and burn rate.

Cash burn rate is a critical metric for understanding how long a company can continue to operate before it needs additional funding. It’s essential for FP&A professionals, C-suite executives, and investors alike. By accurately calculating and interpreting burn rate, companies can make informed decisions about resource allocation, funding requirements, and overall financial sustainability.

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Frequently asked questions.

A high burn rate can indicate that a company is spending its cash reserves too quickly, potentially leading to insolvency if additional funding is not secured in time. It may also suggest inefficiencies in cost management or overly aggressive growth strategies.

Burn rate directly impacts a company’s runway—the length of time it can continue operating before needing more capital. A manageable burn rate ensures that the company has enough time to achieve its growth milestones and potentially reach profitability.

Several factors can affect a company’s cash burn rate, including operating costs, payroll expenses, marketing expenditures, the pace of revenue generation, inflation, economic conditions, unexpected expenses, and changes in interest rates.

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