Attrition explained — what it costs and how to measure it
Contact centre attrition, also called staff turnover, is one of the largest hidden costs in workforce management. An operation with 35% annual attrition replaces more than a third of its agents every year. The real cost is almost always higher than the recruitment invoice.
What is attrition?
Attrition is the rate at which agents permanently leave and must be replaced. It combines voluntary turnover (agents who resign) and involuntary turnover (dismissals, redundancies).
A contact centre with 100 agents that loses 35 people over a year (whether through resignations, dismissals, or transfers) has 35% annual attrition, even if the headcount stays at 100 throughout because they're continually backfilling.
Attrition vs. absence
Attrition = permanent loss (agent leaves, must recruit a replacement). Absence = temporary loss (agent is still employed, will return). Both reduce effective headcount, but attrition requires recruitment and a full ramp-up period; absence is managed via shrinkage buffers.
The true cost of one leaver
Recruitment agencies quote a fee. Finance sees the invoice. But the real cost of an agent leaving is 2–4× what appears on the recruitment invoice.
Direct — recruitment
Direct — onboarding
Indirect — lost productivity
Total cost per leaver: typically £2,000–10,000+
Complex roles (technical support, financial services, healthcare) skew toward the high end. High-volume transactional centres with fast ramp-up skew toward the low end. Use the attrition cost calculator to model your specific operation.
Industry attrition benchmarks
Benchmarks represent UK/EU market conditions, 2023–2024.
The WFM impact of attrition
Attrition affects workforce planning in three ways:
Vacancy gap
Between a leaver departing and a replacement being seated, there is a gap. Average time-to-hire plus induction in a contact centre is 4–12 weeks. During that period, your effective seat count is below plan: occupancy rises, service level falls.
Ramp-up productivity loss
New agents handle fewer contacts per hour, have longer AHT, generate more escalations, and produce more repeat contacts. This can last 3–6 months. Your nominal headcount looks right; your effective capacity is lower.
Training capacity consumption
Induction pulls your best agents off the floor to act as buddies and trainers. In a high-attrition centre, up to 5–10% of your floor capacity may be absorbed by training at any time.
How to reduce contact centre attrition
The most effective attrition reduction levers, roughly in order of impact:
Competitive pay
Pay at or above the local labour market 50th percentile. Attrition spikes when agents discover they can earn more next door.
Schedule flexibility
Fixed unsociable shifts are consistently cited as a top voluntary departure reason. Part-time, hybrid, and flex-schedule options reduce this.
Career development
Agents who can see a path to team leader, quality, or support roles leave less. Define and publicise the progression pathway.
Quality of management
People leave managers, not companies. Team leader quality is the single most controllable driver of voluntary attrition.
Role complexity
Agents with no variety, autonomy, or skill growth leave faster. Cross-skilling and role enrichment improve retention.
Early identification
Track 6-month and 12-month survival rates. If most attrition hits within 6 months, the problem is in recruitment fit or induction, not the job itself.
Calculate your attrition cost
Enter your headcount, attrition rate, and cost components. See your total annual spend and cost per leaver.
Open the attrition cost calculator →Frequently asked questions
What is attrition in a contact centre?
Attrition is the rate at which agents leave the contact centre and need to be replaced. It includes voluntary departures (resignations, internal transfers, retirement) and involuntary departures (dismissals, redundancies). Annual attrition is measured as the number of leavers in a year divided by the average headcount, expressed as a percentage. Contact centre attrition typically runs 25–45% annually, one of the highest of any industry.
How much does contact centre attrition cost?
The cost of replacing one contact centre agent is typically 50–200% of their annual salary, depending on the operation. Direct costs include recruitment advertising, agency fees, interview time, onboarding administration, and equipment. Indirect costs include trainer time for induction, the lower productivity of new agents during ramp-up (3–6 months), increased error rates, and the impact of vacancies on service level. A contact centre with 100 agents and 35% attrition replacing agents at £4,000 per head spends £140,000 per year on attrition alone.
What is a good attrition rate for a contact centre?
Best-in-class contact centres achieve 15–25% annual attrition. The industry average is typically 30–45%, with outsourced BPO operations often running 50–80%. Attrition below 15% is unusual in a contact centre environment and may indicate excessive hiring standards or a very specialised, high-pay operation. The 'right' rate depends on your labour market, the nature of the role, and the investment you make in agent experience.
What is the difference between attrition and absence?
Attrition (or turnover) is the permanent loss of an agent from the workforce: they have left and must be replaced. Absence (or sickness) is the temporary unavailability of an agent who is still employed. Both affect your effective headcount and service level, but they require different responses: attrition requires recruitment and onboarding; absence is managed through shrinkage buffers and real-time cover. Both flow into your total staffing cost.
Related
Attrition cost calculator
Model your total annual attrition spend
Shrinkage calculator
Vacancy gap affects shrinkage planning
Shrinkage explained
How to buffer for vacancies and absence
Contact centre metrics
The 10 KPIs that drive WFM decisions
Attrition in the glossary
Quick-reference definition
Staffing guide
End-to-end headcount planning