Virtual CFO Services
SaaS KPIs That Investors Actually Care About: MRR, Churn, NRR and More
Lekha Editorial Team
CA-reviewed · Published
Indian SaaS investors have become significantly more KPI-sophisticated since 2021. The questions that used to be satisfied by a monthly revenue number now require cohort data, net revenue retention, and CAC payback analysis. This guide covers the metrics that consistently appear in investor diligence for Indian SaaS companies.
The Core MRR Waterfall
The MRR waterfall breaks down how MRR changed from one month to the next across its components. This is the most important single financial reporting element for SaaS investors.
MRR Waterfall = Starting MRR + New Logo MRR (MRR from new customers who weren't customers last month) + Expansion MRR (existing customers who upgraded or expanded) - Contraction MRR (existing customers who downgraded) - Churned MRR (MRR from customers who cancelled) = Ending MRR
Each component tells a different story: New Logo MRR: sales productivity and go-to-market effectiveness Expansion MRR: product value delivery and land-and-expand success Contraction MRR: early warning signal for potential churners Churned MRR: retention quality
Presenting the waterfall monthly gives investors the ability to spot pattern changes: is churn increasing? Is expansion declining? Is new logo acquisition slowing? Each component has a different solution.
Retention Metrics: NRR, GRR, and Cohort Analysis
Net Revenue Retention (NRR): (Starting ARR + Expansion - Contraction - Churn) / Starting ARR × 100. Measures what percentage of ARR from a group of customers at the start of a period you still have at the end, after accounting for expansion and churn. NRR > 100% means you're generating more from existing customers than you're losing — a powerful compounding dynamic.
Gross Revenue Retention (GRR): (Starting ARR - Churn - Contraction) / Starting ARR × 100. NRR without expansion — the pure retention rate. GRR shows how much ARR you'd retain if you had no expansion revenue. GRR above 80% is good; below 70% suggests significant churn risk.
Cohort analysis: group customers by the month they signed up (their 'cohort'), and track their revenue month over month as a percentage of their original month-1 MRR. A cohort that started at 100% and is at 110% in month 24 is showing expansion; one at 70% in month 24 is showing net churn. Cohort charts visualise retention better than any single metric.
For Indian SaaS investors: NRR is now asked in almost every Series A diligence. If you can't produce it, it signals your financial tracking isn't mature enough for institutional investors.
CAC Payback Period: The Capital Efficiency Signal
CAC Payback Period: CAC / (ARPU × Gross Margin %). This is the number of months it takes to recover the cost of acquiring a customer through gross profit generated by that customer.
Example: CAC = ₹60,000. ARPU = ₹8,000/month. Gross Margin = 70%. CAC Payback = ₹60,000 / (₹8,000 × 70%) = ₹60,000 / ₹5,600 = 10.7 months.
A 10.7-month payback means you've recovered your customer acquisition cost in under a year — excellent. At 18 months it's acceptable. At 36 months, you need significant capital to sustain growth because you're waiting 3 years to be profitable on each customer acquisition.
Indian SaaS investors track payback period closely because it directly affects how much capital the company needs to scale. A business with an 8-month payback can self-fund growth from existing customer cashflows much faster than one with a 24-month payback.
Key takeaway
Master the MRR waterfall, NRR, GRR, and CAC payback. Build the systems to track them from the first customer. These metrics are now table stakes for Indian Series A conversations — not the nice-to-haves they were in 2020.
Frequently asked questions
At what ARR should a SaaS startup start tracking NRR?
Start tracking NRR as soon as you have 10+ customers and at least 3 months of history. Below this, the sample size is too small for NRR to be meaningful. Some investors will accept NRR calculations as early as 5 customers if the sample is representative and the methodology is clean. The important thing is to start building the cohort tracking infrastructure early — reconstructing historical cohort data retroactively is tedious and error-prone.
How should logo churn be calculated and reported?
Logo churn rate = customers cancelled in a period / customers at the start of the period. Calculate monthly. For reporting: separate voluntary cancellations (customers who chose to leave) from involuntary churn (payment failures, credit card declines that aren't resolved). Voluntary churn represents product or value problems; involuntary churn represents payment infrastructure and follow-up process problems. Both should be tracked; the solutions are different.
What is the difference between logo churn and revenue churn?
Logo churn tracks the number of customers lost. Revenue churn (or MRR churn) tracks the revenue lost. A company with 100 customers, where 5 churn per month, has 5% logo churn. If those 5 were small accounts (₹2,000/month each) while the remaining 95 average ₹8,000/month, the MRR churn is 5 × ₹2,000 / (100 × ~₹7,700) = very low. Revenue churn is more relevant for valuation because investors value ARR; logo churn is more relevant for understanding product and market fit because it shows customer satisfaction regardless of contract size.
How do annual contracts affect monthly MRR reporting?
Annual contracts are annualised and divided by 12 for MRR reporting. A customer who signs a ₹1.2 lakh annual contract contributes ₹10,000 to MRR each month, not ₹1.2 lakh in month 1. Cash is received upfront (or per the payment terms), but MRR is recognised monthly. This is why MRR and cash collections can differ significantly — a company signing many annual contracts may receive more cash than their MRR growth implies.
What is 'quick ratio' for SaaS and how is it used?
SaaS Quick Ratio (not the balance sheet quick ratio) = (New MRR + Expansion MRR) / (Churned MRR + Contraction MRR). It measures how efficiently you're growing revenue — for every rupee you're losing to churn and contraction, how many are you adding through new and expansion? A quick ratio above 4 is excellent. Between 1 and 2 means your company will eventually grow (additions exceed losses) but slowly. Below 1 means revenue is declining. Investors use SaaS Quick Ratio to assess growth quality, not just growth speed.