SaaS Quick Ratio
CRM & RetentionAlso: Quick Ratio · Growth Efficiency Ratio
Quick definition
SaaS Quick Ratio is a growth efficiency metric that compares monthly recurring revenue (MRR) gained against MRR lost. It divides new MRR plus expansion MRR by churned MRR plus contraction MRR. A ratio above one means a business is growing revenue faster than it's losing it.
A ratio above one means you're growing. Above four is generally considered strong for a scaling SaaS business. Below one means MRR is shrinking even if gross new sales look fine.
How it varies across Australia
SaaS Quick Ratio varies by company stage across the Australian market. Early-stage software businesses often show volatile ratios month to month because a single lost account skews the number heavily. Later-stage businesses with larger customer bases tend to show smoother, more stable ratios over time.
See retention and growth benchmarks across Australian software businesses →What it actually means
Think of monthly recurring revenue like water in a bucket. New MRR and expansion MRR pour water in. Churned MRR and contraction MRR drain it out. SaaS Quick Ratio tells you the ratio between the tap and the drain.
A ratio of one means the bucket stays exactly the same level. Growth from new and expansion customers offsets exactly what churn and contraction take away. Anything below one means the bucket is emptying even if the top-line MRR number still looks positive that month.
This is the metric that catches businesses relying too heavily on gross MRR growth. A company can report rising monthly recurring revenue while its Quick Ratio quietly falls, because new sales are masking a churn problem building underneath. Net revenue retention tells a similar story from a cohort angle, tracking existing customers over a fixed period. Quick Ratio tells it from a flow angle, tracking dollars in versus dollars out each month.
Investors and operators watch this number because it separates businesses growing efficiently from businesses growing expensively. A high customer acquisition cost (CAC) chasing new logos to prop up a mediocre Quick Ratio isn't a strategy, it's a subsidy.
A Quick Ratio tells you whether you're actually growing or just refilling a leaking bucket.
How to calculate it
Quick Ratio = (New MRR + Expansion MRR) ÷ (Churned MRR + Contraction MRR)
Worked example. A business adds $8,000 in new MRR and $2,000 in expansion MRR this month. It loses $3,000 to churn and $1,000 to contraction. Quick Ratio = ($8,000 + $2,000) ÷ ($3,000 + $1,000) = $10,000 ÷ $4,000 = 2.5.
The Australian context
Australian SaaS businesses raising from local funds are increasingly asked for Quick Ratio alongside net revenue retention and CAC payback, particularly at Series A and beyond. Local investors often compare it against benchmarks pulled from US-heavy SaaS metrics reports, which can distort expectations for smaller Australian customer bases where a single enterprise churn event swings the ratio hard.
Smaller Australian SaaS companies with concentrated customer bases should track Quick Ratio on a trailing three-month basis rather than single-month snapshots. One lost account in a base of forty customers can turn a strong month into a weak one without anything in the underlying business actually changing.
Where people get this wrong
Related terms
Common questions
What is a good SaaS Quick Ratio?
A ratio above one means monthly recurring revenue is growing, not shrinking. Many investors look for four or higher as a sign of strong, efficient growth. Below one signals the business is losing more revenue than it's adding, even if gross sales numbers look healthy.
How is Quick Ratio different from net revenue retention?
Net revenue retention tracks a fixed cohort of existing customers over a set period and ignores new business. Quick Ratio includes new MRR and looks at the most recent month. They answer related but different questions about growth quality.
Why did my Quick Ratio drop even though MRR went up?
Total MRR can rise while Quick Ratio falls if new and expansion MRR grew slower than churned and contraction MRR grew. It's a sign that retention is deteriorating even as new sales continue.
How often should I calculate Quick Ratio?
Monthly, tracked as a rolling trend over at least a quarter. A single month is noisy, especially for smaller SaaS businesses where one account can swing the number significantly.
Debrief
Get the next one
No spam. No fluff. Just the next article, straight to your inbox.
Keep exploring
About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
How we think →