Shrinkage Rate
Definition
Shrinkage Rate
Shrinkage rate is the share of paid time during which staff are unavailable to handle the work they were hired for. It is the gap between paid hours and productive hours, covering leave, sickness, training, meetings, breaks, and system downtime.
Ignore it and every roster comes out short — plan for forty agents at zero shrinkage and you will field roughly thirty on a normal day.
The figure is a planning input rather than a performance score. Nobody should be coached for taking approved annual leave.
Note the different sense used in retail and logistics, where shrinkage means lost or stolen inventory. This entry covers the workforce meaning.
Key takeaways
- Shrinkage rate is unavailable paid time divided by total paid time.
- Typical contact centre shrinkage runs between 30% and 35% of paid hours.
- Split it into planned and unplanned components, since only one is controllable.
- It is a staffing input, not an individual performance measure.
How it works
Total the paid hours in a period, total the hours during which staff were unavailable for their core work, then divide. Apply the result as an uplift when converting required productive hours into the headcount a roster actually needs.
Splitting the figure matters more than the headline — planned shrinkage is a scheduling problem, while unplanned shrinkage is usually a wellbeing or process problem.
| Component | Type | Typical share of paid time |
|---|---|---|
| Annual leave and holidays | Planned | 10% to 12% |
| Training and coaching | Planned | 4% to 6% |
| Breaks and rest periods | Planned | 8% to 10% |
| Sickness and unplanned absence | Unplanned | 4% to 8% |
| Meetings and system downtime | Mixed | 2% to 5% |
Absence data gives the unplanned side an outside reference. The UK Health and Safety Executive estimated 22.1 million working days lost to stress, depression, or anxiety in 2024/25, with each affected person taking around 16.4 days off.
Statutory leave sets a floor under the planned side. UK holiday entitlement rules give almost all workers 5.6 weeks of paid annual leave, which is 28 days for someone working a five day week.
Shrinkage should be budgeted, not discovered. Agreeing the figure with the client before a contract starts turns an uncomfortable mid year conversation into a line item both sides already signed.
Report the split every month alongside the headline. A stable 33% built from rising sickness and falling training is a very different operation from one where the mix has held steady all year.
Examples
Shrinkage varies with contract type, location, and work mix, and the split between planned and unplanned tells you which lever to pull. Four cases show the range.
A Manila voice operation. Total shrinkage of 34% broke down as 25% planned and 9% unplanned. The unplanned share fell to 6% after the night shift roster was rebalanced.
A UK financial services team. Shrinkage looked low at 24% until analysts noticed breaks were excluded from the calculation. Restating it added nine points.
A back office processing unit. Training shrinkage spiked to 14% during a system migration — planned, disclosed, and budgeted for six weeks.
A healthcare support desk. Unplanned absence ran at 11% against a 6% plan. Occupancy on covered days pushed past 90%, which drove further absence.
Related terms
Shrinkage connects the roster to the utilisation measures that describe what happens once staff are actually available and logged in for work. The terms below cover both sides of that divide, from planning inputs through to floor level measures.
- Shrinkage: the parent term covering unavailable time in general.
- Workforce Management (WFM): the function that applies the uplift to the roster.
- Occupancy Rate: the share of available time actually spent on contacts.
- Percent Agent Utilization: the paid time view of the same question.
- Non-Productive Agent Time: the detailed breakdown of what shrinkage contains.
- After Call Work Time: productive time often miscoded as shrinkage.
- Staffing Model: the plan the shrinkage uplift feeds into.
FAQ
What is a normal shrinkage rate?
Between 30% and 35% of paid time for most contact centres. Rates below 25% usually mean something has been left out of the calculation.
Should breaks be counted as shrinkage?
Yes. Paid breaks are time the agent is unavailable for work, so leaving them out understates the roster requirement.
How does shrinkage differ from attrition?
Shrinkage is time lost from people still employed. Attrition is the loss of the people themselves.
Can shrinkage be reduced?
The unplanned share can be, through wellbeing and scheduling work. Planned shrinkage is mostly statutory or contractual.
Why does high occupancy raise shrinkage?
Because sustained pressure drives sickness and burnout. The two measures feed each other in a loop that is hard to break.
Does this mean inventory loss in retail?
In retail and logistics it does. In workforce planning it means unavailable paid time.
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