MRR (Monthly Recurring Revenue) is the sum of subscription revenue normalized to the month, excluding one-time fees. It is the central metric of every B2B SaaS in 2026: per OpenView Partners’ 2025 SaaS Benchmarks, 97% of B2B SaaS above $1M ARR run their business with MRR as the pivot metric, and VC funds use it as the #1 denominator in Series A through D valuations.
But MRR is a trap. Many teams compute it wrong — bundling implementation fees, ignoring downgrades, smoothing annual contracts without normalization. And behind the raw number, real SaaS pilotage looks at the 5 types of MRR (New, Expansion, Contraction, Churned, Reactivation) that reveal what is actually happening inside the base. This guide details the strict definition, the calculation method, the 5 MRR types, and walks through a worked example on a B2B SaaS at $8M ARR.
At a glance:
- Strict MRR definition (and difference with ARR, billings, bookings)
- How to calculate MRR: the 2026 normalized method
- The 5 types of MRR (New, Expansion, Contraction, Churned, Reactivation)
- 2026 benchmarks by SaaS stage
- Worked example: B2B SaaS at $8M ARR
- 3 FAQs and 3 dated actions
Key takeaways:
- MRR = monthly recurring revenue only (no one-time fees, no services).
- ARR = MRR × 12; it is not the sum of annual billed revenue.
- The 5 MRR types (New, Expansion, Contraction, Churned, Reactivation) reveal real base health.
- 2026 benchmark Net New MRR / base MRR: 6-12% for a healthy growing B2B SaaS (OpenView).
1. Strict definition: what MRR is (and isn’t)
MRR is the sum of subscription revenue, normalized to the month, actually recurring and predictable. Three strict criteria:
- Recurring: revenue is billed periodically (monthly, annually) under a contract.
- Predictable: revenue is guaranteed until churn or renegotiation.
- Normalized to the month: an annual contract at $12k/year counts $1k/month in MRR, not $12k/month.
Distinguish it rigorously from:
- Billings: what is invoiced in the period. A customer paying $12k upfront for 12 months generates $12k in billings and $1k/month in MRR.
- Bookings: total value of contracts signed in the period. A 3-year contract at $10k/year signed in March generates $30k in bookings that month, and $833/month in MRR.
- Revenue (GAAP/IFRS): revenue recognized per accounting standards. Very close to MRR if smoothed, but may include one-time fees recognized pro-rata.
- Cash collected: actual cash received in the period.
What does NOT count in MRR:
- Setup fees, implementation fees, training fees: not recurring.
- Time-and-materials professional services: not recurring.
- One-time discounts or commercial credits: deducted to compute net MRR.
- Non-guaranteed usage-based revenue (pure usage with volatile consumption): gray zone — see FAQ 3.
2. How to calculate MRR: the 2026 normalized method
Standard method for a B2B SaaS with mixed annual/monthly contracts:
MRR = Σ (Contract value / Contract duration in months)Concrete example for a B2B SaaS:
| Customer | Contract type | Value | Duration | MRR contribution |
|---|---|---|---|---|
| Customer A | Monthly | $500/month | 1 month | $500 |
| Customer B | Annual | $18,000/year | 12 months | $1,500 |
| Customer C | Bi-annual | $36,000/2 years | 24 months | $1,500 |
| Customer D | Quarterly | $6,000/quarter | 3 months | $2,000 |
| Total MRR | $5,500 |
Common mistakes to avoid:
- Mistake 1 — Including setup fees. A $5k setup fee billed once does not count in MRR.
- Mistake 2 — Ignoring downgrades. If a customer drops from $1,000/month to $700/month, their MRR contribution goes from $1,000 to $700. The difference (-$300) is Contraction MRR.
- Mistake 3 — Not smoothing annual contracts. An annual contract signed in January at $60k/year does not count $60k of MRR in January; it counts $5k/month for 12 months.
- Mistake 4 — Confusing gross and net. Gross MRR = sum of all contributions. Net MRR = gross minus adjustments (credits, discounts).
ARR = MRR × 12. Always. No “average MRR over the year × 12”; no “sum of 12-month revenue”. ARR is the snapshot of the recurring run rate.
3. The 5 MRR types: real SaaS pilotage reading
Gross MRR says nothing about base health. To run a SaaS, you decompose the monthly Net New MRR into 5 components:
1. New MRR. MRR added by new customers in the month. Direct output of the sales team.
2. Expansion MRR. MRR added by existing customers who upgraded (plan change, seat additions, module add-ons). Typically managed by Customer Success or Account Managers.
3. Reactivation MRR. MRR recovered from churned customers who return. Mostly relevant in B2B mid-market where annual contracts create reactivation cycles.
4. Contraction MRR (negative). MRR lost from existing customers who downgraded (plan change, seat removal). No full churn, just reduction.
5. Churned MRR (negative). MRR lost from customers who fully canceled.
Net New MRR formula:
Net New MRR = New + Expansion + Reactivation − Contraction − ChurnedMonthly example for a healthy growing B2B SaaS:
| Component | Amount | % of base MRR |
|---|---|---|
| Base MRR (start of month) | $500,000 | 100% |
| New MRR | +$35,000 | +7.0% |
| Expansion MRR | +$18,000 | +3.6% |
| Reactivation MRR | +$2,000 | +0.4% |
| Contraction MRR | −$8,000 | −1.6% |
| Churned MRR | −$12,000 | −2.4% |
| Net New MRR | +$35,000 | +7.0% |
| End-of-month MRR | $535,000 |
OpenView 2026 benchmark for healthy B2B SaaS:
| Stage | New MRR % | Expansion % | Churn % | Target NRR |
|---|---|---|---|---|
| Pre-Series A (<$2M ARR) | 8-15% | 1-3% | 3-5% | 95-110% |
| Series A-B ($2-15M ARR) | 5-10% | 3-7% | 1.5-3% | 105-120% |
| Series C-D ($15-100M ARR) | 3-6% | 5-12% | 0.8-1.5% | 115-135% |
4. NRR (Net Revenue Retention): the expansion metric
NRR has become in 2025-2026 the preferred metric of B2B SaaS investors because it measures a company’s ability to grow MRR without acquiring new customers.
Trailing 12-month formula:
NRR = (Base MRR + Expansion − Contraction − Churned) / Base MRROn the same customer cohort over 12 months.
2026 NRR benchmarks by segment:
| SaaS Segment | Top quartile NRR | Median NRR | Bottom quartile NRR |
|---|---|---|---|
| SMB (<500 employees) | 105-115% | 100-105% | 85-95% |
| Mid-market | 115-125% | 105-115% | 95-105% |
| Enterprise | 125-140% | 110-125% | 100-110% |
NRR > 100% means the existing base grows on its own: expansions more than offset churn. It is the SaaS Holy Grail because it means revenue grows even with zero new customers.
Real published examples in 2025-2026:
- Snowflake Q4 fiscal 2025: 127% NRR
- Datadog Q4 2025: 115% NRR
- HubSpot Q4 2025: 102% NRR
- Zoom Q4 fiscal 2026: 98% NRR (post-Covid pressure)
5. Worked example: B2B SaaS at $8M ARR
Context. A US B2B SaaS scale-up (115 employees, $8.4M ARR as of December 31, 2024) closes fiscal 2025 with the following figures:
Initial MRR (January 2025): $700k/month ($8.4M ARR).
Average monthly 2025 breakdown:
| Component | Monthly average | Annualized |
|---|---|---|
| New MRR | +$42k | +$504k |
| Expansion MRR | +$21k | +$252k |
| Reactivation MRR | +$2.5k | +$30k |
| Contraction MRR | −$9k | −$108k |
| Churned MRR | −$14k | −$168k |
| Net New MRR | +$42.5k | +$510k |
Final MRR (December 2025): $1.21M/month ($14.5M ARR).
Pilotage reading:
- ARR growth: $8.4M → $14.5M = +72.6% YoY.
- NRR on the 12/31/2024 cohort: (8,400 + 252 − 108 − 168) / 8,400 = 97.3% NRR. NRR < 100% means the existing base is slightly losing ground. This is concerning: long-term, it forces acquiring ever more new business to compensate.
- Annualized Gross Churn: 168 / 8,400 = 2.0%/month = ~22%/year. High for B2B mid-market.
- Net Churn (churn − expansion): (168 − 252) / 8,400 = −1.0%/month = negative (Expansion offsets Churn).
Strategic decisions drawn from this reading:
- Invest in Customer Success. Negative Net Churn is good, but 22%/year Gross Churn is high. Better 12-month retention could save $100-150k of ARR.
- Double down on expansion efforts. NRR at 97% shows headroom. Target “low expansion” accounts to push NRR to 110%.
- Maintain outbound effort. New MRR at $504k/year is solid; doubling down on prospecting tools (Zeliq, Apollo, Cognism) can amplify this lever.
2026 projection if NRR rises to 110%:
- Year-end 2026 ARR estimated: 14.5 × 1.4 (growth + improved NRR) = $20.3M ARR
- Versus base scenario at 97% NRR: ARR estimated at $17.8M
- Differential: +$2.5M ARR for 1 FTE CS ($110k) + $30k of CS tooling = 18.4× ROI
Zeliq and the New MRR engine
Running a B2B SaaS, Net New MRR depends as much on retention as on acquisition flow. Zeliq fuels the New MRR column with 450 million B2B contacts filterable by ICP, verified enrichment (email, direct phone), and multichannel sequences that 3× the conversion rate vs. manual sourcing. All in a single interface, no stacking search, enrichment and engagement tools.
6. Frequently asked questions
How do I calculate MRR for a usage-based SaaS?
For pure usage-based SaaS (pay-per-consumption, no fixed subscription), classic MRR makes no sense: there is no guaranteed contractual recurrence. The 2025-2026 norm documented by OpenView and Bessemer is to calculate an “adjusted” MRR based on average consumption over the trailing 3 months, normalized per customer. Twilio, Snowflake and AWS publish this metric as “annualized usage revenue” in their results. For hybrid SaaS (base subscription + usage), separation into Committed MRR (base) and Variable MRR (usage) is standard, with two distinct NRRs. The golden rule: MRR must never overstate predictability — if consumption is volatile, variable MRR should be discounted in valuation ratios.
What’s the difference between MRR and ARR?
ARR (Annual Recurring Revenue) is simply MRR × 12. It is the annualized snapshot of the recurring run rate at a given moment. Practical difference: ARR is more stable and readable for comparisons (equivalent to annual revenue); MRR is finer and more operational for monthly pilotage. Frequent mistake: confusing ARR with annual billed revenue (which may include one-time fees and fluctuations) or with GAAP/IFRS recognized revenue (smoothed per accounting standards). In a 2026 B2B SaaS pitch deck, always mention the reference ARR (date + amount), the reference MRR (date + amount), and the 12-month NRR.
Do professional services and implementation fees count in MRR?
No. One-time fees — setup fees, implementation fees, training fees, migration services, one-off audits — never count in MRR by definition (MRR is strictly recurring). They are reported on a separate line called “Professional Services Revenue” or “Non-Recurring Revenue” which is not valued like pure SaaS in valuation comparables. Classic confusion: a customer signing $60k/year subscription + $20k implementation generates $5k/month in MRR ($60/12), not $6.67k/month ($80/12). This discipline is critical because VC funds and SaaS acquirers look only at recurring MRR when setting the valuation multiple.
Conclusion: 3 actions to take this week (June 2026)
Audit your MRR calculation by Friday. Verify that you exclude all one-time fees, normalize annual contracts, and separate Net New MRR into its 5 components (New, Expansion, Reactivation, Contraction, Churned). Without this decomposition, you are not running your SaaS.
Calculate your trailing 12-month NRR by June 12. On the cohort of customers at D-365, measure MRR contribution evolution. NRR < 100% = immediate retention issue. NRR > 110% = potential to industrialize expansion.
Schedule a monthly 5-MRR-type review before June 18. Sales + CS + Finance meeting, 60 minutes, focus on Contraction and Churned accounts. Churn patterns diagnose at 90 days; beyond, the account is lost.
Boost your New MRR with the right prospects
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Book a demoAnd if you want your Net New MRR to stop depending on manual sourcing, try Zeliq for free and calibrate your acquisition flow.
Sources- OpenView Partners, “2025 SaaS Benchmarks Report”
- Bessemer Venture Partners, “State of the Cloud 2025”
- ChartMogul, “SaaS Metrics Standards 2025”
- SaaSOptics, “SaaS Financial Reporting Best Practices”
- PitchBook, “Enterprise SaaS Multiples Q4 2025”
- Snowflake, “Q4 Fiscal 2025 Earnings Release”
- HubSpot, “Q4 2025 Earnings Release”
- Datadog, “Q4 2025 Earnings Release”
- Zoom, “Q4 Fiscal 2026 Earnings Release”
- Bridge Group, “SaaS AE Compensation Report 2025”
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