Most companies measure employee turnover as a single number and fight all departures the same way. But a weak performer leaving during probation and a key specialist with 10 years' tenure leaving are different events with different consequences for the business.
Regrettable turnover is the departure of an employee the company would have liked to keep. Non-regrettable turnover is a departure that causes no problems or even lightens the team's load. When both types are lumped into a single turnover rate, the company takes a double risk: it spends budget retaining people it would be better to let go, and misses the departure of people it should have kept.
HR tech is needed here so that the classification does not depend on a manager's memory but is recorded in the system alongside performance and review data.
Splitting turnover into regrettable and non-regrettable is HR at its most advanced. Most companies stop at counting the overall turnover rate. The ability to systematically separate and discuss these two types shows that the HR function has grown from a record-keeping role into an analytical one and is built into the company's business decisions. If your company is already asking this question, that in itself is a sign of mature HR practices.
Goals and objectives
Goals:
- separate harmful turnover from natural team renewal;
- direct budget and managers' time towards retaining the people who really matter;
- give management an honest metric instead of an overall turnover rate;
- identify the systemic causes of regrettable departures and eliminate them.
Objectives:
- Define regrettable and non-regrettable criteria before anyone leaves.
- Train managers to classify every departure against these criteria.
- Calculate the regret rate separately from the overall turnover rate.
- Rebuild retention programs so they are targeted rather than aimed at everyone.
- Review the criteria regularly so they do not become a formality.
It is important to make one thing clear from the start: this is not a tool for justifying turnover to shareholders but a way to direct retention resources more precisely.
How to tell regrettable from non-regrettable attrition: 6 steps
| Step | What we do | Risk and how to neutralize it |
|---|---|---|
| 1. Defining the criteria | Determine what makes a departure regrettable: a high performance rating, a competency in short supply on the market, a critical role. | The criteria are vague and each manager interprets them differently — set 3–4 verifiable criteria in a policy and agree them with managers in advance. |
| 2. Classifying on departure | When an employee leaves, the manager marks the type of departure in the system. | The manager inflates the regrettable flag to avoid admitting problems in the team — HR confirms the flag against clear criteria rather than taking the manager's word for it. |
| 3. Exit interview and checking the reason | Collect data on the reason for leaving to understand whether the departure could have been prevented. | The employee gives a socially acceptable answer instead of the real reason — the interview is run by HR rather than the direct manager, and answers are checked against review and engagement data. |
| 4. Calculating the regret rate | Calculate the share of regrettable departures among all leavers, separately for key departments. | A small sample gives an unstable percentage from quarter to quarter — look at a rolling average over several quarters rather than a single snapshot. |
| 5. Focusing the retention budget | Direct retention programs to where the regrettable share is higher. | The budget is still spread evenly across everyone — link retention decisions (salary review, career track) to data on a specific person's regrettable-departure risk. |
| 6. Reviewing the criteria | Every six months, check whether the classification matches the real consequences of departures. | The criteria go stale as company strategy changes — include the criteria review in the annual HR planning cycle. |
The cross-cutting risk of the whole process is subjectivity: without clear criteria, every manager will call whatever suits them a regrettable departure.
How to use the results and what the company gains
- Target the retention budget. Instead of across-the-board raises — specific measures for those whose departure would really hurt the business.
- Report to management with a precise metric. The regret rate is more convincing than the overall turnover rate in a conversation with the CFO or the board.
- Compare departments and managers fairly. A high regret rate for a particular manager is a signal for HR to find out why it is the valuable people who leave.
- Do not turn it into a tool for excuses. Non-regrettable is no reason to ignore why people leave: even a weak performer may have left because of poor management.
When turnover is split into two types, the culture changes: a weak performer leaving stops being seen as a crisis, and a strong one leaving becomes a signal to act faster. HR stops spending resources on retaining everyone indiscriminately and starts closing real risks in a targeted way. Management gets a number that speaks to the quality of people management rather than just the intensity of departures.
Consequences of regrettable and non-regrettable attrition
Negative consequences of a regrettable departure:
- loss of expertise and pace of work that a new person takes months to rebuild;
- demotivation of those who stay: when a strong person leaves, the team reads it as a signal that there is nothing for them in the company;
- risk to clients and projects that depend on a specific person;
- expertise leaking to competitors, especially if the person held unique competencies;
- damage to the employer brand if the reason for leaving was a systemic management problem rather than personal circumstances.
Positive consequences of a non-regrettable departure:
- budget and a vacancy are freed up for a stronger or better-suited candidate;
- the team's average productivity rises after a weak performer leaves;
- the load on the manager, who no longer has to compensate for someone else's weakness, decreases;
- trust in the evaluation system grows: others see that poor results have consequences;
- HR gets confirmation that the recruitment and review process works properly rather than just generating reports.
It is this difference in consequences that makes regrettable/non-regrettable a useful tool for management rather than an internal HR category only HR understands: one type of departure calls for urgent intervention, the other simply for recording it and moving on.
