Net Revenue Retention: How to Calculate NRR and What Your Number Means in 2026

A SaaS company with 120% NRR and zero new logo acquisition grows a $10M ARR base to roughly $25M in five years on expansion alone. A company at 90% NRR must replace 10% of its revenue through new sales every year just to break even. The gap between those two outcomes is the difference between a business that compounds and one that treads water. The 2026 B2B SaaS median NRR sits at 102%, according to the Aleph and Benchmarkit SaaS Performance Benchmarks covering 342 companies. But that single number obscures enormous variation by segment, pricing model, and ARR stage. Use our ARR Growth Calculator to project how your NRR compounds over time, and track the components with the Churn Rate Calculator.

The NRR Formula

Net revenue retention measures how much recurring revenue you retain and grow from existing customers over a given period, excluding new logos. The formula:

NRR = (Starting MRR + Expansion MRR - Contraction MRR - Churned MRR) / Starting MRR x 100

Four components feed the calculation:

• Starting MRR: recurring revenue from existing customers at the beginning of the period
• Expansion MRR: revenue added from existing customers through seat increases, tier upgrades, or usage growth
• Contraction MRR: revenue lost from existing customers through downgrades or seat reductions
• Churned MRR: revenue lost from customers who fully cancel

Gross revenue retention (GRR) uses the same formula but excludes expansion. GRR caps at 100% because it only measures what you kept, not what you grew. The 2025 median GRR is 84%, and the gap between NRR and GRR is the size of your expansion engine.

Step-by-Step NRR Calculation

Consider a SaaS company starting Q1 with $500,000 in MRR from existing customers. During the quarter:

1. Three customers upgraded from Pro to Enterprise, adding $12,000 in expansion MRR
2. One customer reduced their seat count from 50 to 30, causing $4,000 in contraction MRR
3. Two customers churned entirely, representing $8,000 in churned MRR

NRR = ($500,000 + $12,000 - $4,000 - $8,000) / $500,000 x 100 = 100%

This company is at break-even. It lost exactly as much revenue as it gained from its existing base. To grow, it must acquire new logos. A company at 100% NRR is running in place.

Now consider the same company one year later after launching a usage-based add-on. Starting MRR is $650,000. Expansion MRR is $45,000 from increased usage. Contraction is $6,000. Churn is $10,000.

NRR = ($650,000 + $45,000 - $6,000 - $10,000) / $650,000 x 100 = 104.1%

The usage-based add-on created organic expansion that pushed NRR above 100%. That is the structural advantage of consumption pricing: revenue grows as customers use more, without a sales conversation.

2026 NRR Benchmarks by Segment

Source: Aleph/Benchmarkit 2026, Optifai 2026, SaaS Capital 2026.

The cross-industry median of 102% is nearly meaningless without segment context. A 97% NRR is healthy for an SMB-focused company and signals a serious problem for an enterprise vendor. SaaS Capital's 2026 survey of 1,000+ private companies found that bootstrapped companies at $3M to $20M ARR run a median NRR of 104%, slightly above the venture-backed early-stage median of 98%.

At the public company level, the leaderboard is dominated by usage-based models. Snowflake reported 126% NRR for the quarter ending April 30, 2026. Datadog reported low-120s. MongoDB reported 121%. Atlassian, running a seat-plus-metered-AI hybrid, reported 120%+. HubSpot, primarily seat-based, reported 103%.

What Drives the NRR Gap Between Pricing Models

The single largest structural determinant of NRR is pricing architecture. Usage-based companies post a 108% median NRR. Seat-based companies sit at 98%, below the break-even line. The 75th percentile for usage-based models reaches 155%.

The mechanism is straightforward. Usage-based pricing creates organic expansion: as customers use more, revenue grows automatically. Seat-based pricing faces the opposite pressure. When customers become more efficient, they need fewer seats, and revenue contracts. This is why the shift toward hybrid models, now at 46% of SaaS companies, is accelerating. A hybrid base fee plus meter gives you forecastable base revenue plus the expansion upside of consumption pricing.

For a deeper analysis of how pricing model choice affects your metrics, read our SaaS Pricing Models Compared guide.

Common Mistakes When Measuring NRR

Quoting a single NRR number without specifying the segment. A 105% NRR could be excellent for an SMB company or underperforming for an enterprise company. Always benchmark within your ACV band.

Including new logo revenue in the NRR calculation. NRR measures retention and expansion from existing customers only. Mixing in new logos inflates the number and makes it impossible to compare against benchmarks.

Ignoring concentration risk. A high NRR built on a handful of expanding accounts is fragile. If your top 5 customers account for 40% of expansion MRR, a single downgrade can collapse your NRR. Report both the headline number and the concentration metric.

Confusing NRR with GRR. GRR excludes expansion and caps at 100%. NRR includes expansion and can exceed 100%. A company with 90% GRR and 110% NRR has a strong expansion engine but a retention problem. A company with 95% GRR and 100% NRR has strong retention but no expansion. Both patterns require different interventions.

Not tracking NRR monthly. Quarterly NRR smooths over problems. A customer who downgrades in month 1 and upgrades in month 3 looks fine in a quarterly view but may have been at risk of churning. Monthly tracking catches signal earlier.

Related Tools on ProfessionCalculators.com

• ARR Growth Calculator to project how your NRR compounds ARR over time
• Churn Rate Calculator to measure the churned MRR component of your NRR
• SaaS MRR Calculator to track starting, expansion, contraction, and churned MRR
• LTV to CAC Ratio Calculator to check that your retention supports sustainable acquisition spend

FAQ

What is a good NRR for a SaaS company? It depends on your segment. Enterprise SaaS should target 115 to 125%. Mid-market should target 105 to 115%. SMB should target 95 to 105%. The cross-industry median of 102% is not a useful target without segment context.

Can NRR be above 100%? Yes. NRR exceeds 100% when expansion revenue from existing customers outweighs contraction and churn. This is common in usage-based and hybrid pricing models where revenue grows automatically as customers consume more.

What is the difference between NRR and GRR? NRR includes expansion revenue and can exceed 100%. GRR excludes expansion and caps at 100%. The gap between them measures the size of your expansion engine. A wide gap means expansion is driving growth. A narrow gap means retention is doing the heavy lifting.

How does pricing model affect NRR? Usage-based pricing produces a median NRR of 108% versus 98% for seat-based pricing, a 10-point structural gap. Hybrid models fall in between. The mechanism is organic expansion: consumption-based revenue grows as customers use more, without a sales conversation.

What NRR do investors expect at the Series A stage? Investors typically look for 110 to 120% NRR at Series A, according to Averi.ai 2026 data. Below 100% at any stage is a red flag that signals the product is not retaining customers well enough to compound.

Conclusion

NRR is the single metric that tells you whether your SaaS business compounds or treads water. The 2026 median of 102% means the typical company is barely above break-even on its existing base. Your real target depends on your ACV band, pricing model, and ARR stage. Enterprise companies should aim for 115 to 125%. Usage-based products have a structural advantage, posting 108% median NRR versus 98% for seat-based. Measure NRR monthly, benchmark within your segment, and track the gap between NRR and GRR to understand whether growth is coming from retention or expansion.