What it means
A skilled technician resigns from a role with few trained replacements, and management may classify that exit as regretted and look for preventable reasons. The point is to learn about workforce risk, not to dismiss other employees' departures as unimportant.
SHRM discusses assessing the quality of attrition and Visier examines reasons employees resign, but neither supplies a universal definition of which individuals a business must label "regretted", so a fair, documented method matters. Define the category before reviewing a year's results, because otherwise managers can reclassify exits to fit a target, and review the criteria again afterward since a manager may underclassify regretted exits to look good.
State whether it includes only voluntary resignations or also other separations; the definition here focuses on voluntary departures. Use criteria relevant to work and continuity, such as needed expertise or documented performance, not a manager's vague personal preference, and check for bias across teams and demographic groups where lawful, since subjective labels can reproduce unfair views.
For an annual rate, divide regretted voluntary leavers during the year by average eligible headcount and multiply by 100, so if 12 such employees leave from average headcount of 200, the illustrative rate is 6%. Record the count as well as the rate, because in a small team a single resignation can make the percentage swing sharply.
Set a useful period too, since month-to-month percentages can be noisy for small organisations. Do not assume every departure could have been prevented, since a person may leave for reasons outside the employer's control.
Ask employees about conditions while they remain, through appropriate stay conversations or surveys, because exit interviews can provide clues but may not reveal the full reason when some departing workers do not feel safe being candid. Look at manager support, growth, pay, workload and flexibility alongside available evidence, and avoid claiming a cause from one anecdote.
Track critical-role coverage and succession, since even a low rate can be serious if a unique specialist leaves. Compare by role, tenure and team while protecting privacy, because small cells can identify individuals, and review the time and cost to replace lost capabilities since a headcount rate alone does not show disruption.
Separate planned turnover from unexpected departures in succession reporting, and track voluntary attrition overall as well, because a falling regretted rate could hide a large rise in other exits. A departing employee who joins a better opportunity may still have had a good experience, so the company's regret is not theirs to carry and nobody should be pressured to stay after a decision.
Monitor internal mobility and career paths, because talented people sometimes leave when they cannot see another role inside, and compare pay policies with external markets carefully since a one-off counteroffer may not fix broader fairness or growth concerns. Do not equate high performance ratings with every valuable contribution, share aggregate insights with leaders who can improve conditions rather than a public list of "valuable" and "not valuable" leavers, and mark any definition change after a reorganisation before comparing trend lines.
In practice
Real-world examples.
Example
Twelve regretted voluntary exits among an average 200 staff give a 6% annual rate. HR reports the count of 12 beside the percentage so leaders see the size of the loss. It also lists which roles the exits came from, without naming individuals.
Example
A small team loses its only licensed specialist and records a critical-role risk apart from the aggregate rate. The company-wide figure barely moves, yet client work in that area stops until a replacement is trained. The succession plan is updated to name a second person for the role.
Example
HR reviews classification consistency before comparing departments. It finds that two managers applied the regretted label to different kinds of exit, so it issues one written definition with examples. The comparison is rerun only after the labels are corrected.
Formula
Calculation
Regretted attrition rate = voluntary leavers meeting documented regretted-exit criteria during the period / average eligible headcount in that period x 100.
Worked example. A fictional company has 190 eligible employees at the start of the year and 210 at the end, so average eligible headcount is (190 + 210) / 2 = 200. Twelve voluntary leavers meet the documented regretted-exit criteria, giving a rate of 12 / 200 x 100 = 6%. In a fictional team of 8, one specialist resigning gives 1 / 8 x 100 = 12.5%, which is why the count should be reported next to the rate.Case study
Seen in the real world.
In this fictional case, Forest Systems saw several experienced engineers leave. HR checked role coverage, voluntary feedback and internal-mobility barriers, then tested a clearer career path. The case is invented and no retention outcome is promised. The review also found that two team leads classified exits differently, so HR wrote one definition with documented criteria before the next reporting period.
Results were shared with leaders as aggregate themes, such as limited visibility of internal roles and uneven workload, and not as a list of named leavers. The measure is useful when it drives fair retention work and continuity plans rather than labels that harm people. Forest Systems treats the rate as a prompt to ask better questions, and it tracks overall voluntary attrition alongside it so a falling regretted figure cannot hide other exits.
Watch out
Common mistakes.
- Changing the definition after seeing the result.
- Using subjective labels with no bias check.
- Treating a low overall percentage as proof critical roles are safe.
Questions
People also ask.
Does regretted mean the person made a mistake leaving?
No. It describes the employer's retention perspective, not the employee's choice.
Should all voluntary exits be counted?
Only if the organisation's documented definition says so; otherwise report overall voluntary attrition separately.
What should leaders do with the result?
Investigate fair, actionable retention factors and strengthen succession plans.
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