MRR and ARR are not just accounting terms. They are the two numbers that determine whether investors take your call.
I have been on both sides of this — as a founder raising capital and as an investor evaluating deals. The founders who walk in and say "we're doing about $2M a year" are immediately distinguished from those who say "we're at $167K MRR, growing 8% month-over-month, with 115% net revenue retention." Same underlying business, completely different signal.
Let me explain what these metrics actually mean, how to calculate them correctly, what they signal, and how they drive your valuation in today's market.
What Is MRR and ARR in SaaS — The Core Definitions
MRR (Monthly Recurring Revenue) is the normalized monthly value of all active subscription contracts. The key word is "normalized." If a customer pays $1,200 upfront for an annual contract, their MRR contribution is $100 — not $1,200 in month one and zero thereafter.
ARR (Annual Recurring Revenue) is MRR × 12. That's it. It is not your trailing twelve months of actual cash collected. It is a forward-looking run rate based on currently active contracts. A company with $100K MRR on January 1st has $1.2M ARR — even if they only actually collected $700K over the prior twelve months.
Included in MRR/ARR
- •Monthly subscription fees
- •Annual contract value ÷ 12
- •Seat-based recurring licenses
- •Usage tiers (if predictable recurring)
Excluded from MRR/ARR
- •One-time setup fees
- •Professional services
- •Hardware sales
- •Non-recurring overages
The reason investors obsess over these metrics: they strip out the noise of payment timing, seasonality, and one-time revenue to reveal the true health of the subscription engine.
How to Calculate MRR the Right Way
Total MRR = New MRR + Expansion MRR − Churned MRR − Contraction MRR
New MRR
Revenue from customers who didn't exist last month
$5 new customers at $200/mo = +$1,000
Expansion MRR
Upgrades, upsells, seat additions from existing customers
3 customers upgraded, adding $300 total = +$300
Churned MRR
Revenue lost from cancellations
2 customers canceled at $150/mo each = −$300
Contraction MRR
Downgrades or plan reductions from existing customers
1 customer downgraded by $50 = −$50
In the example above: Net New MRR = +$1,000 + $300 − $300 − $50 = +$950. If last month's MRR was $50,000, this month's is $50,950. ARR = $50,950 × 12 = $611,400.
MRR vs ARR: Which Do You Report?
Early-stage companies (pre-$1M ARR) typically report MRR because the monthly granularity is more meaningful — you want to see the growth trajectory, not annualize a tiny number. Once you cross $1M ARR, most founders switch to reporting ARR in fundraising conversations because it's the number VCs benchmark against comps.
One nuance: if your business is primarily annual contracts with meaningful ACV (average contract value above $10K), report ARR directly from the contract TCV rather than MRR × 12. The two should be identical, but calculating directly from signed contracts avoids rounding errors and matches how investors will verify the number.
Companies with meaningful usage-based revenue (think Snowflake, Datadog, or Twilio) report ARR separately from usage revenue, because the recurring base is what drives the multiple — not the variable top-up.
What SaaS Revenue Multiples Look Like in 2025–2026
ARR is not just an operational metric — it is the denominator in your valuation multiple. The formula is simple: Valuation = ARR × Revenue Multiple.
| Growth Rate (YoY) | NRR | Typical ARR Multiple |
|---|---|---|
| 100%+ (hypergrowth) | 120%+ | 15–25x |
| 60–100% | 115%+ | 10–18x |
| 40–60% | 110%+ | 7–12x |
| 20–40% | 105%+ | 4–8x |
| <20% (mature) | <105% | 2–5x |
Per Meritech Capital's public SaaS comps (updated Q1 2026), the median EV/NTM Revenue multiple for the BVP Nasdaq Emerging Cloud Index sits at approximately 5.8x. The top decile — companies growing 60%+ with strong NRR — trades at 15x+. You can track the live multiples on the SaaS Valuations dashboard.
What this means practically: a startup at $2M ARR growing 80% YoY with 118% NRR should be raising at a $16–20M pre-money (8–10x ARR) at Series A in the current market. The same $2M ARR company growing 25% with 100% NRR might get 3–4x ARR — a $6–8M pre-money, if it can raise at all.
The Three MRR Metrics That Actually Matter Alongside ARR
ARR tells you where you are. These three derivatives tell you where you're going:
Net Revenue Retention (NRR)
What percentage of last year's ARR is still there this year, including expansions and subtracting churn and contraction. Best-in-class is 120%+, meaning your existing customers are growing ARR by 20% per year even without new logos. This is the single most important driver of SaaS multiples.
120%+ = exceptional | 100–115% = healthy | <100% = leaky bucket
MRR Growth Rate (MoM %)
Month-over-month percentage growth in MRR. Seed and Series A investors want to see a consistent rate of 10–15%+ MoM. This compounds fast: 10% MoM = 3.1x ARR growth in a year. 15% MoM = 5.4x. The rate of change matters as much as the absolute number.
15%+ MoM = excellent | 10–15% = strong | <5% = concerning
Churn Rate
Logo churn and revenue churn are different. A SaaS company can lose 20% of its customers and grow ARR if those customers were small and expansions from large customers exceeded the losses. Always report both and watch the trend: rising churn at scale is a structural problem that more new ARR cannot paper over.
<1% monthly revenue churn = exceptional | 2–3% = typical | >5% = unsustainable
Common Mistakes Founders Make With MRR and ARR
In 65+ investments, I have seen these errors repeatedly — and every one of them damages credibility in a diligence process:
Including one-time revenue in ARR
Strip out setup fees, professional services, and non-recurring payments. Investors will find it.
Counting annual contracts fully in month one
Normalize everything. A $12K annual contract is $1K MRR, not a $12K ARR bump on day one.
Using "revenue" and "ARR" interchangeably
Revenue is cash recognized. ARR is a forward rate. An annual contract paid upfront is $12K revenue but only $1K/month MRR.
Not tracking expansion MRR separately
If you don't know your expansion MRR, you can't calculate NRR — and NRR is what investors care most about.
Reporting contracted ARR that hasn't gone live
ARR should reflect active, live contracts. Signed-but-not-started is pipeline, not ARR.
ARR is not just a metric. It is a signal.
A founder who knows their exact MRR, growth rate, NRR, and churn in real time is a founder who understands their business. That is who investors back.
Track live SaaS revenue multiples and valuation benchmarks on the SaaS Valuations dashboard at Value Add VC. Originally published in the Trace Cohen newsletter.