Burn Multiple: what actually moves it.

Burn Multiple is the dollars you burn for every dollar of net new ARR you add. One dollar of burn per dollar of new ARR is a burn multiple of 1.0. Two dollars of burn per dollar of new ARR is 2.0. The lower the number, the more efficient the growth.

It was popularized by David Sacks in 2020 as a single shorthand for good growth. It has aged well because, unlike most SaaS metrics, it resists dressing up. You can inflate ARR. You can smooth retention. You can't really hide the cash that left the building.

Burn Multiple = Net Burn ÷ Net New ARR, computed over the same period. Quarterly is the cleanest cadence. Monthly is noisy. Annual hides too much.

Net Burn. Cash out minus cash in, excluding financing activity. If you raised in the quarter, strip out the proceeds. If you took on debt, strip it out too. You want operating cash burn — the amount the business consumed to exist.

Net New ARR. ARR at end of quarter minus ARR at start. Net — so new logos and expansion minus churn and contraction. Not gross new ARR. If the company shows you gross, ask for the net version.

There is a running debate about whether to use change in ARR or change in revenue. Both have a case. On a steady-state SaaS, they track closely. On a company with ramp deals or heavy usage-based revenue, ARR flatters the number. We use net new revenue when the company meaningfully sells usage — it is closer to the cash reality.

A rough read, on a SaaS business with decent retention:

• Below 1.0 — exceptional. Every dollar burned is returning more than a dollar of ARR. These companies can usually raise whenever they want, on their terms.
• 1.0 to 1.5 — very good. This is the band of the best operators in their category.
• 1.5 to 2.0 — good, and typical for well-run companies investing into a clear expansion motion.
• 2.0 to 3.0 — suspect. The growth engine is expensive. Usually fine at Series A. Becomes a question at Series B.
• Above 3.0 — a problem, unless you have a story that explains it. A land-grab market, a step-change in product, a specific high-cost pilot. Without the story, the round will be hard.

These bands shift with stage. A Series A SaaS burning three dollars for every dollar of ARR can still be a great deal. A Series C burning the same is a red flag.

In working sessions with founders, most CFOs will focus on cost cuts. That's one lever of four, and usually not the strongest.

1. Net retention. A dollar of expansion ARR costs a fraction of a dollar of new-logo ARR. If NRR goes from 108% to 118%, the burn multiple improves without changing anything about the product, the price, or the sales team. More expansion means more numerator growth for the same denominator.

2. Sales efficiency. Magic number, CAC payback, win rate per stage. These compound. A 20% improvement in win rate at stage 3 flows into the burn multiple with a three-to-four month lag.

3. Pricing. Almost always under-exploited. Every price increase that sticks improves the burn multiple immediately and at every subsequent period. It is the single cheapest lever, and the one most founders will delay by six months when they shouldn't.

4. Cost discipline. The one everyone focuses on first. It works, but it has a floor. You can cut your way to a better burn multiple for about two quarters. After that, either growth reaccelerates, or the number gets worse again because the cost base stabilizes.

Trap 01 — Mixing financing and operating cash. A company raised in Q2. The Q2 burn looks negative because the round hit the bank. The burn multiple, computed naively, comes out near zero or negative. That is not efficiency. That is a cash event. Always strip financing activity.

Trap 02 — Using gross new ARR instead of net. A company adding 5 in new logos and losing 2 in churn did not grow 5. It grew 3. Computing the burn multiple on gross new ARR makes a mediocre quarter look good. Auditors and data-room-trained investors catch this instantly. Founders should too.

Trap 03 — Seasonality on a single quarter. Q4 SaaS bookings are often 30 to 40% of the year. Pricing the company on a single-quarter burn multiple is a trap on either side. We look at trailing-twelve-months always, and a single quarter only as a trend indicator.

If you own the narrative in front of a board, five lines are enough:

1. This quarter's burn multiple, clean of financing cash.
2. The prior three quarters, for trend.
3. The split of net new ARR between new logos and expansion.
4. The one lever you moved this quarter — retention, efficiency, pricing, or cost.
5. The one you plan to move next quarter.

That's the discipline. Not the computation. Anyone with a spreadsheet can compute a burn multiple. The operators we respect make a habit of showing it, every quarter, in the same shape, with the lever movement called out.