Customer Satisfaction Score (CSAT)

Customer Satisfaction Score (CSAT) is the transactional metric that measures satisfaction with a specific interaction or touchpoint. Touchpoints include a support ticket, an onboarding session, a product feature, or a recent purchase, typically asked as "How satisfied were you with [specific thing]?" on a 1-5 or 1-10 scale. The score is expressed as the percentage of "Satisfied" responses (4-5 on a 5-point scale, or 8-10 on a 10-point scale) out of total responses. CSAT is the tactical counterpart to NPS (which measures overall loyalty); CSAT measures specific moments.

The math:

CSAT = (# of Satisfied responses ÷ Total responses) × 100

Example: 100 customers respond to a post-support-ticket survey. 75 rate the experience 4 or 5 stars. CSAT = 75%.

CSAT vs NPS:

Dimension	CSAT	NPS
Question	"How satisfied with [interaction]?"	"How likely to recommend?"
Scale	1-5 or 1-10	0-10
Calculation	% Satisfied	% Promoters - % Detractors
Scope	Specific transaction	Overall relationship
Timing	Post-interaction	Periodic (quarterly, annually)
Used for	Tactical improvement	Strategic trend tracking

When CSAT is most useful:

Support quality: post-ticket CSAT measures support team performance. Industry benchmarks: 90%+ is excellent, 80-90% is good, below 75% needs attention.

Onboarding effectiveness: post-onboarding CSAT measures whether new customers got value quickly.

Feature satisfaction: in-product CSAT after using a new feature measures feature reception.

Sales experience: post-purchase CSAT measures whether the sales process matched expectations.

Process improvement: identifies friction points (specific stages with low CSAT trigger investigation).

Industry CSAT benchmarks:

Touchpoint	Healthy CSAT
Customer support	85-95%
Onboarding	80-90%
Sales process	80-90%
Product experience	75-85%
Billing / invoicing	90-95%

Common CSAT survey approaches:

Post-ticket auto-survey: triggered immediately after support ticket closes. 1-5 stars + optional comment.

Pulse surveys: shorter periodic surveys (monthly) to catch trends.

Transactional CSAT: tied to specific events (renewal, upgrade, feature launch).

In-app CSAT: contextual in-product prompts (sparingly to avoid survey fatigue).

What CSAT misses:

Doesn't predict churn well: a customer can have 90% CSAT on all interactions but still churn for strategic reasons (budget, change of vendor, M&A).

Doesn't capture passive satisfaction: many satisfied customers don't respond to surveys; CSAT data is biased toward responders.

Specific to moment, not relationship: high CSAT on each interaction doesn't necessarily mean strong overall relationship.

What founders get wrong: Treating CSAT and NPS as interchangeable. They measure different things at different cadences. CSAT is tactical (specific interactions), NPS is strategic (overall loyalty). The right discipline: use both; let CSAT drive process improvement; let NPS drive overall customer health monitoring.

Related: Net Promoter Score · Customer Health Score · Customer Onboarding · Customer Success Manager

FAQ

What is Customer Satisfaction Score (CSAT)?
A transactional customer feedback metric measuring satisfaction with a specific interaction (support ticket, onboarding session, purchase). Calculated as % of satisfied responses (4-5 on 5-point scale, or 8-10 on 10-point scale).

What's the difference between CSAT and NPS?
CSAT measures satisfaction with a specific interaction (tactical, post-event). NPS measures overall loyalty (strategic, periodic). CSAT for process improvement; NPS for relationship health.

What's a healthy CSAT score?
Industry-specific by touchpoint. Customer support: 85-95% is healthy. Onboarding: 80-90%. Sales: 80-90%. Product experience: 75-85%. Billing: 90-95%.

When should I measure CSAT?
At every meaningful touchpoint: post-support-ticket, post-onboarding, post-purchase, post-feature-launch. Frequent enough to catch trends, sparingly enough to avoid survey fatigue.