Burn multiple is a capital-efficiency ratio: net cash burned divided by net new ARR added in the same period.

How it works

Popularized in SaaS investing circles, the formula is straightforward:

Burn multiple = Net burn ÷ Net new ARR

If a company burned $3 million last quarter and added $1 million of net new ARR, its burn multiple is 3.0 for that quarter. Investors often annualize or smooth over several quarters to reduce noise from seasonality or one-time expenses.

Interpretation is contextual. Early-stage companies with product-market fit hunts may run high multiples temporarily. At scale, investors expect multiples closer to 1 — meaning roughly a dollar of burn per dollar of new ARR — or lower in efficient go-to-market models.

Burn multiple complements metrics like CAC payback and gross margin. A low multiple with weak retention is still bad; a high multiple with exploding expansion revenue may be acceptable for a short window.

Why it matters

• Founders: Use burn multiple in board decks to show whether hiring and marketing spend are paying off. It forces honest conversation when growth stalls but burn does not.
• Investors: Efficient burn multiples support higher valuations and longer runway between rounds. Multiples that drift up without growth acceleration often precede down rounds or flat bridges.

Common mistake

Using revenue growth instead of net new ARR, or ignoring one-time costs that distort a single quarter. Define the numerator and denominator consistently every reporting period.

Related ideas

See also burn rate, CAC payback, net dollar retention, and Rule of 40.