Absenteeism Cost Calculator NZ 2026/27
Unplanned absence generates three separate costs and most businesses count either one of them or none. The first is the wage itself: paid sick leave means money goes out and no work comes back, which is a genuine cost even though it is a legal entitlement and nobody is at fault. The second is cover, and it is the one that surprises people, because covering an absent person through overtime or a temporary worker costs money on top of the wage you have already paid, so a covered day is paid for twice. The third only applies where nobody covers: the work simply does not happen, and for a billable or production role that is lost output rather than a deferred task. This page prices all three separately, adds the management time spent rearranging rosters and chasing replacements, and reports the total, the cost per employee, and the absence rate as a percentage of available days so it can be compared year to year. The rate on the worked example is under three percent, which sounds negligible until it is expressed in dollars. The output worth acting on is the last one: what one or two fewer days per person would be worth, because that is a realistic target with a number attached.
Total absence days = headcount × days each, or the team total you enter, depending on the mode selected.
Direct wage cost = total absence days × daily rate. This is wage paid for days not worked.
Cover cost = covered days × daily rate × (1 + premium). The full amount is counted because overtime or a temporary worker is additional expenditure, incurred while the absent employee is still being paid.
Lost output = uncovered days × daily output. For a billable role use what the person would have billed; for a production role use the contribution their day's work generates. Where cover is set to "not covered", every absence day is uncovered.
Absence rate = days absent per employee / working days available. Expressed per employee so it is comparable regardless of team size.
Employer on-costs are excluded from the daily rate, so the wage figure is base salary only. Including KiwiSaver, ACC and ESCT would raise the total by roughly the on-cost percentage.
This measures cost, not fault. Genuine illness, injury and caring for dependants are the bulk of absence in most workplaces, and the figures here are for planning cover and targeting causes, not for managing individuals.
Not employment advice. Last verified: August 2026.
Where the cost sits
| Daily salary rate ($76,000.00 over 220 days) | $345.45 |
| Total absence days (24 staff at 6.5 days) | 156.0 |
| Wages paid for days not worked | $53,890.91 |
| Cover on 109.2 days at a 50% premium | $56,585.45 |
| Output lost on 46.8 uncovered days | $24,336.00 |
| Management time, 48 hours at $58.00 | $2,784.00 |
| Total annual cost | $137,596.36 |
| Cost per employee | $5,733.18 |
Cover is counted in full because the absent employee is still being paid. A covered day is paid for twice.
Covered against uncovered
| Treatment | Days | Cost per day | Total |
|---|---|---|---|
| Covered by overtime | 109.2 | $518.18 | $56,585.45 |
| Not covered, output lost | 46.8 | $520.00 | $24,336.00 |
| Wage paid regardless | 156.0 | $345.45 | $53,890.91 |
A covered day costs $518.18 and an uncovered day loses $520.00, so on these figures the two are almost identical and the choice barely matters financially.
Your absence rate
| Working days available per employee | 220 |
| Days absent per employee | 6.5 |
| Absence rate | 2.95% |
| Total available days across the team | 5,280 |
| Total days lost | 156.0 |
What reducing absence would be worth
| Scenario | Days each | Rate | Annual cost | Saved |
|---|---|---|---|---|
| Today | 6.5 | 2.95% | $137,596.36 | - |
| One day less each | 5.5 | 2.50% | $116,856.00 | $20,740.36 |
| Two days less each | 4.5 | 2.05% | $96,115.64 | $41,480.73 |
Weigh these against what addressing the causes would cost. Most measures are considerably cheaper than $20,000 a year.
Under Three Percent Sounds Like Nothing
An absence rate of 2.95% reads as a rounding error. Nobody would restructure a business over three percent of anything.
Expressed in money it is $137,596.36 a year, or $5,733.18 per employee. That is more than most businesses spend on marketing, and unlike marketing it is entirely invisible: it never appears as a line item because it is scattered across payroll, overtime and jobs that ran late.
Worked Example: 156 Days Across 24 People
Twenty-four staff averaging 6.5 unplanned absence days each lose 156 days a year. At an average salary of $76,000.00 over 220 working days, each day costs $345.45 in wages alone, so $53,890.91 goes out for days not worked.
Seventy percent of those days, 109.2 of them, are covered through overtime at a 50% premium. That costs a further $56,585.45, which is more than the wages themselves.
The remaining 46.8 days are not covered, and at $520.00 of output a day that is $24,336.00 of work that simply did not happen. Add $2,784.00 of management time spent rearranging things and the total is $137,596.36.
A Covered Day Is Paid For Twice
This is the mechanism most businesses miss. When someone is away and their shift is covered, the business pays the absent person their sick leave entitlement and pays the person covering.
At time and a half, the cover costs $518.18 on top of the $345.45 already paid, so a single covered day costs $863.63 in total. That is two and a half times the daily wage for one day of work.
It explains why the cover line on the worked example exceeds the wage line despite covering only 70% of the days. Any business running high overtime to cover absence is paying a large and largely invisible premium.
Cover Or Absorb?
The financial comparison on the worked example is unusually close. A covered day costs $518.18 in overtime; an uncovered day loses $520.00 of output. There is essentially nothing in it.
That will not be true for your business. Where a role generates well above its own cost, as most billable and production roles do, covering is clearly worthwhile. Where it does not, absorbing the absence is cheaper on paper.
Two things the arithmetic misses, though. Uncovered work does not vanish, it lands on colleagues or on the following week, and repeatedly asking a team to absorb absence is itself a driver of turnover. And customers waiting for work that did not happen have their own reaction, which does not show up in either column. Our Employee Turnover Cost Calculator shows what that second effect costs if it materialises.
One Day Each Is Worth $20,740
Reducing average absence from 6.5 days to 5.5 saves $20,740.36 a year. Two days each saves $41,480.73.
Set that against what the common causes cost to address. Flu vaccinations for a team of 24 are a few hundred dollars. Better equipment where manual handling injuries are a factor is a one-off. A workload or roster problem costs nothing to fix beyond the willingness to look at it. Early check-ins by a manager, before a pattern establishes, cost time rather than money.
None of that requires treating absence as a discipline matter, and the evidence generally runs the other way: pressuring unwell people to attend produces longer illnesses, spread infection and more mistakes, all of which cost more than the days saved.
Find Out Where It Actually Sits
An average of 6.5 days across 24 people rarely means everyone taking 6.5 days. It far more often means most people taking two or three and a small number taking a great deal more, for reasons that may be entirely legitimate.
That distinction matters because the response differs completely. A genuine long-term health issue needs support and possibly an accommodation. A pattern of frequent single days is more disruptive to cover than one two-week absence, and it is worth understanding rather than assuming.
Our Bradford Factor Calculator scores individual patterns, weighting frequency far above duration for exactly that reason. Use this page to size the problem and justify acting on it, and the Bradford Factor to see where it sits before deciding what to do.
Related NZ Employment Cost Calculators
- Bradford Factor Calculator: scores absence patterns rather than totals.
- Sick Leave Calculator: entitlements and accrual under the Holidays Act.
- Payroll Cost Calculator: the full payroll this cost sits within.
- Annual Leave Calculator: planned leave, which is a separate calculation.
- Employee Turnover Cost Calculator: what happens when absorbing absence drives people out.