What Is the Quick Ratio (SaaS)?
The SaaS Quick Ratio measures growth efficiency by comparing revenue gains to revenue losses. Learn the formula and what a healthy ratio looks like.
Key Takeaways
- The SaaS Quick Ratio divides revenue additions (new plus expansion) by revenue losses (churn plus contraction).
- A ratio above 4 indicates efficient growth; below 1 means you are shrinking.
- It reveals whether growth is sustainable or dependent on unsustainable acquisition spending.
What the SaaS Quick Ratio measures
The SaaS Quick Ratio is a single number that captures the efficiency of your revenue growth. It divides your total revenue additions (new customer revenue plus expansion revenue) by your total revenue losses (churned revenue plus contraction revenue). A quick ratio of 4 means you add four dollars of revenue for every dollar you lose. It was popularised by investor Mamoon Hamid as a way to quickly assess whether a SaaS company's growth is healthy or precarious.
The formula and benchmarks
Quick Ratio equals (new MRR plus expansion MRR) divided by (churned MRR plus contraction MRR). A ratio of 4 or higher is considered strong. Between 2 and 4 is adequate but leaves room for improvement. Below 2 signals a leaky bucket where you are working hard to grow but losing too much in the process. Below 1 means revenue is shrinking. Most healthy growth-stage SaaS companies target a quick ratio between 3 and 5.
Why the Quick Ratio matters
Revenue growth alone can be misleading. A company growing at 50% annually might be adding massive amounts of new revenue while also haemorrhaging existing customers. The Quick Ratio exposes this dynamic. Two companies with identical growth rates can have very different quick ratios: one growing sustainably through strong retention and the other through brute-force acquisition that masks high churn. Investors increasingly use this metric to evaluate growth quality.
Improving your Quick Ratio
You can improve the ratio by either increasing the numerator or decreasing the denominator. Increasing expansion revenue through upsells and cross-sells is often the fastest lever. Reducing churn through better onboarding, customer success, and product improvements addresses the denominator. The most impactful approach is typically reducing churn, because every dollar saved from churning compounds as retained revenue that can expand over time.