Net Promoter Score (NPS)
Also known as: NPS System, Net Promoter, Likelihood to Recommend
A customer loyalty measurement system based on one question — 'How likely are you to recommend us?' — that categorizes customers as Promoters, Passives, or Detractors and calculates a score from -100 to +100.
Quick Reference
Memory Aid
One question: Would you recommend us? 9-10 = Promoters. 0-6 = Detractors. NPS = %P - %D.
TL;DR
Ask 'How likely are you to recommend us?' on a 0-10 scale. Calculate NPS = %Promoters - %Detractors. Follow up with 'Why?' Close the loop with detractors. Analyze patterns. Improve systematically.
What Is Net Promoter Score (NPS)?
Ask customers one question: 'On a scale of 0-10, how likely are you to recommend us?' Score 9-10 = Promoters (loyal enthusiasts). Score 7-8 = Passives (satisfied but unenthusiastic). Score 0-6 = Detractors (unhappy). NPS = % Promoters - % Detractors.
The Ultimate Question
The path to sustainable, profitable growth begins with creating more promoters and fewer detractors.
— Fred Reichheld, The Ultimate Question 2.0
NPS is both a metric and a system. The metric provides a simple, comparable score. The system includes the follow-up: asking 'Why?' after the score, closing the loop with detractors, analyzing root causes, and driving organizational improvement. Companies with the highest NPS in their industry typically grow 2x faster than competitors. The true value is not the number itself but the organizational discipline of listening and responding to customer feedback.
NPS Score Classification
A 0-10 scale showing the three customer categories and how NPS is calculated.
Origin & Context
Published in the Harvard Business Review article 'The One Number You Need to Grow.' Reichheld's research at Bain showed that this single question was the strongest predictor of growth across industries.
Core Components
The Question
The core NPS question on a 0-10 scale.
Example
'How likely are you to recommend [Company] to a friend or colleague?'
Classification
Grouping respondents into Promoters (9-10), Passives (7-8), and Detractors (0-6).
Example
100 responses: 50 Promoters, 30 Passives, 20 Detractors. NPS = 50% - 20% = +30.
Follow-up Question
Asking 'Why?' to understand the reason behind the score.
Example
'What is the primary reason for your score?' — providing qualitative data for improvement.
Closed-Loop Process
Reaching out to detractors to understand and resolve their issues.
Example
A dedicated team contacts every detractor within 24 hours to understand their issue and attempt resolution.
Did You Know?
Reichheld tested 20 different survey questions across 6 industries before settling on the 'likelihood to recommend' question. It won because it was the single best predictor of actual customer behavior — repeat purchases, referrals, and churn — beating even overall satisfaction scores. Two-thirds of Fortune 1000 companies now use NPS as a key metric.
When to Use Net Promoter Score (NPS)
Customer loyalty tracking
Problem it solves: Provides a simple, comparable measure of customer loyalty over time.
Real-World Application
Apple consistently scores NPS 70+, among the highest in tech. They track NPS by product, store, and support interaction to identify improvement areas.
Customer retention improvement
Problem it solves: Identifies detractors before they churn and provides insights into why.
Real-World Application
A SaaS company implemented closed-loop NPS and reduced churn by 20% — every detractor received a personal call from a customer success manager within 48 hours.
NPS without follow-up is just a number. The real value is in the 'Why?' and the closed-loop process. Every detractor contact is an opportunity to save a customer and learn about systemic issues.
How to Apply Net Promoter Score (NPS): Step by Step
Before You Start
- →Customer contact database
- →Survey delivery mechanism
- →Process for acting on feedback
Design the Survey
Set up the NPS question with the follow-up 'Why?'
Tips
- ✓Keep it short — the NPS question plus one open-ended question is ideal
Common Mistakes
- ✗Adding too many questions, reducing response rates
Deploy at Key Touchpoints
Send NPS surveys at strategic moments in the customer journey.
Tips
- ✓Relationship NPS (periodic) and transactional NPS (after interactions) serve different purposes
Common Mistakes
- ✗Over-surveying — sending NPS too frequently causes fatigue
Close the Loop
Contact detractors to understand and address their concerns.
Tips
- ✓Respond within 24-48 hours while the experience is fresh
Common Mistakes
- ✗Collecting NPS data without ever contacting detractors
Analyze and Act
Identify patterns in feedback and drive systematic improvements.
Tips
- ✓Categorize 'Why' responses to find the top themes
Common Mistakes
- ✗Focusing on the score rather than the underlying feedback
Value & Outcomes
Primary Benefit
Provides a simple, actionable measure of customer loyalty that predicts growth.
Additional Benefits
- ✓Easy to benchmark across industries
- ✓Drives a discipline of listening and responding to customers
What You'll Learn
- →How to measure customer loyalty simply and effectively
- →How to build a closed-loop customer feedback system
Typical Outcomes
Best Practices
📋 Preparation
- •Define survey timing and cadence
- •Build the closed-loop process before launching
🚀 Execution
- •Keep the survey short
- •Close the loop with every detractor
🔄 Follow-Up
- •Track NPS trends over time, not just snapshots
- •Share NPS feedback across the organization
💎 Pro Tips
- •The most important metric isn't the NPS score — it's the percentage of detractors who become promoters after the closed-loop process
Don't game NPS by only surveying happy customers or coaching customers to give high scores. This defeats the purpose and creates a false sense of security.
USAA's NPS Leadership
USAA, the financial services company serving military families, consistently achieves NPS scores above 75 — among the highest in financial services (where the industry average is around 34). Their secret: every employee, regardless of role, goes through a two-day new-hire orientation that includes eating MREs and reading deployment letters to build empathy for members. This deep customer understanding translates directly into service quality and loyalty.
Limitations & Pitfalls
A single score can oversimplify complex customer relationships
Mitigation: Use NPS alongside CSAT, CES, and qualitative research
Cultural differences affect how people use rating scales
Mitigation: Benchmark within regions/cultures rather than globally
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