SaaS Quick Ratio Calculator — Growth Efficiency, Not Liquidity

Background.

For every dollar of recurring revenue that walked out of a subscription business last month, how many dollars came in? That single number is the SaaS quick ratio. Add the new MRR from customers who signed up and the expansion MRR from existing customers who bought more, then divide by the MRR lost to cancellations plus the MRR lost to downgrades. A company that added $30,000 and $12,000 while losing $8,000 and $4,000 gained $42,000 for $12,000 lost: a ratio of 3.5.

The name causes real confusion. Accountants have used "quick ratio" for decades to mean the acid-test ratio, cash plus marketable securities plus receivables divided by current liabilities, a measure of whether a company can pay its short-term bills. The SaaS version borrows the name and nothing else. A business can have a strong balance sheet and a dismal SaaS quick ratio, or the other way round. If liquidity is your question, you need the acid-test calculator instead.

The SaaS ratio is credited to Mamoon Hamid and was published in Jonathan Hsu's "Diligence at Social Capital" series, which also supplied the two reference points everyone repeats: the firm preferred enterprise SaaS investments with a ratio greater than 4, and wrote that below 2 "your churn is probably too high". Those are one venture firm's stated preferences, not an industry standard, and they are reported here with that attribution. Because a ratio hides scale, net new MRR in dollars is shown beside it.

What is saas quick ratio calculator?

The SaaS quick ratio measures growth efficiency: recurring revenue gained in a period divided by recurring revenue lost in the same period. A value of 1 means the business exactly replaced what it lost; below 1 its recurring base shrank. Unlike net or gross revenue retention, it compares only the flows and never the starting base. It is a management and investor metric, not a GAAP or IFRS measure, so anyone quoting it should say how each component was defined.

How to use this calculator.

1. 01Enter new MRR: recurring revenue from customers who were not customers at the start of the period. A former customer who returns during the period belongs here too. Leave out setup fees, implementation and other one-off charges, which are not recurring revenue.
2. 02Enter expansion MRR from existing customers who added seats, upgraded or took on recurring add-ons.
3. 03Enter churned MRR from customers who cancelled outright and contraction MRR from those who stayed on a smaller plan, both as positive amounts.
4. 04Take all four figures from the same period, usually a calendar month; a quarter suits businesses whose large renewals land unevenly.
5. 05Read the ratio with net new MRR and the share of losses that came from full cancellations before drawing any conclusion.

The formula.

Quick ratio = (new MRR + expansion MRR) ÷ (churned MRR + contraction MRR). The numerator is gross MRR added, the denominator gross MRR lost, so the result reads as dollars gained per dollar lost. The ratio is shown to two decimal places, and the reading beside it places that displayed figure in one of four bands: below 1, the base is shrinking; from 1 up to 2, growth is happening but Social Capital's churn warning applies; from 2 up to 4, losses are comfortably covered; 4 or above, the level Social Capital said it preferred for enterprise SaaS.

Net new MRR is gross added minus gross lost, the dollar amount the ratio deliberately strips out. The share of losses from full cancellations is churned MRR ÷ gross MRR lost × 100, which separates customers leaving from customers shrinking.

One case has no answer. If churned and contraction MRR are both zero, the denominator is zero and the ratio is unbounded, so no figure is returned. A month with no losses at all is good news; report net new MRR for it, or compute the ratio over a quarter or a trailing year. Adding a token dollar of churn to force a result only produces a meaningless, enormous ratio.

A worked example.

Frequently asked questions.

References& sources.

1. [1]Hsu, J. "Diligence at Social Capital Part 2: Accounting for Revenue Growth." Social Capital. Primary published source for the firm's growth-accounting framework and for both thresholds quoted on this page: "For enterprise SaaS companies, we prefer to invest in companies with a quick ratio greater than 4" and "If you have a quick ratio of <2 then your churn is probably too high". The post credits Mamoon Hamid's presentation for the SaaS quick-ratio examples. Retrieved 29 July 2026; both quotes verified against the live post.
2. [2]Jordan, J., Hariharan, A., Chen, F., & Kasireddy, P. (21 August 2015). "16 Startup Metrics." Andreessen Horowitz. Independent second authority on what may enter the MRR components used here — ARR and MRR "should exclude one-time (non-recurring) fees and professional service fees", which governs the numerator and denominator of this ratio. Retrieved 29 July 2026; quote verified.
3. [3]Deeter, B. (2 October 2012). "The five accounting metrics for cloud companies." Bessemer Venture Partners Atlas. Independent corroboration of the recurring/non-recurring boundary and source of the CMRR forward view. Retrieved 29 July 2026.
4. [4]U.S. Securities and Exchange Commission (30 January 2020). Release No. 33-10751, "Commission Guidance on Management's Discussion and Analysis of Financial Condition and Results of Operations." Requires a registrant presenting an operating metric to disclose its definition and method of calculation — directly relevant given that two unrelated metrics are both called the quick ratio. sec.gov returns HTTP 403 to automated fetchers; release number, title and dates verified independently.