Net Burn

Date created: Feb 16, 2019  •   Last updated: Sep 17, 2021

What is Net Burn?

Net Burn, often referred to as Burn Rate, is the amount a company is losing per month as they burn through their cash reserves. It occurs when a company’s operating costs are higher than their revenue. A company that is profitable and generating cash has a "negative Net Burn".

Alternate names: Negative Cash Flow

Formula

ƒ (Operating Expenses - Gross Margin)

How to calculate

Using the first method, if a company is spending $250,000 per month to keep the doors open and generating $100,000 in revenue, Net Burn would be: Net Burn = $250,000 - $100,000 = $150,000

Net Burn

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What is a good Net Burn benchmark?

Monthly Cash Burn by ARR Scale

Monthly Cash Burn by ARR Scale

OpenView, 2020
Monthly Net Cash Burn by ARR

Monthly Net Cash Burn by ARR

OpenView, Sep 2019
Monthly Net Cash Burn by Target Customer

Monthly Net Cash Burn by Target Customer

OpenView, Sep 2019
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More about this metric

Net Burn rate is particularly important for startups because it helps measure how quickly they are burning through their available capital in relation to their revenue. In SaaS companies, burn rate and revenue are typically measured month to month. Executives and investors use Net Burn to understand the company’s runway, or how long they have before they run out of money.

There are no hard and fast benchmarks for how fast a startup should be burning through invested cash. Venture Capitalists want to see that the money they’ve invested is being used to fund growth. However, companies that spend cash too quickly risk running out of it. In such cases, a fast growing company, that appears to be approaching profitability, could be at risk of going under. That said, when companies are in a conscious growth period, they may be burning cash faster as part of the plan to acquire customers quickly.

Businesses want their Net Burn rate to be low so that they can maintain their business for a long time before needing to secure another round of funding and to avoid bankruptcy. One way to do this is by keeping expenses low. If expenses increase and sales decrease then the Net Burn rate will increase quickly and the company’s runway will shorten.

There are two common methods for measuring Net Burn: By subtracting Gross Margin (Revenue minus Cost of Goods Sold) from Operating Expenses or by subtracting your ending cash balance from your starting cash balance for any given period.