An employee takes Friday off and Monday off. Do you deduct two days of leave, or four?
The sandwich rule says four — the weekend between two leave days is counted as leave. It is entirely legal to apply, widely used, and worth thinking about harder than most companies do.
What it actually is
Under a sandwich rule, holidays and weekly offs falling between two periods of leave are treated as leave. Without it, only the working days applied for are deducted.
Both are legitimate policy positions. Neither is imposed by statute for most private employers, which means this is a decision you are making — and one many companies apply without realising they chose it, because it was the default in whatever system they configured.
The argument for it
It prevents a specific pattern: an employee who takes every Friday and Monday around a holiday weekend converts a small leave balance into a large amount of time away. Over a year, a determined employee can be absent for considerably longer than their entitlement suggests.
For operations that need cover — a plant, a hospital rota, a store — that pattern has a real cost, and the sandwich rule is a direct answer to it.
The argument against it
It is the leave policy employees resent most, and the resentment is disproportionate to the days involved.
The reason is that it feels like a penalty for a legitimate act. The employee applied for two days of leave they had earned; the company deducted four. Explaining that this is standard practice does not help, because the objection is not to the practice but to the arithmetic feeling punitive.
It also produces a perverse incentive: an employee who would have taken Friday off now takes Thursday and Friday, because the marginal cost of the extra day is lower. That is worse for cover, not better.
If you apply it, apply it narrowly
Most companies that think about it settle somewhere in the middle:
- Apply it to earned leave but not to sick leave, since nobody plans an illness around a weekend.
- Apply it only where the leave brackets the holiday on both sides, not where it merely abuts one.
- State it explicitly in the leave policy, with an example.
That last point is the one that matters most. A sandwich rule discovered on a payslip is a grievance; one stated in the policy an employee accepted is a rule.
Whichever you choose, configure it once
The failure mode is not choosing the wrong policy. It is applying it inconsistently — for one grade and not another, or by whoever is approving, or differently in a month when somebody is watching.
Employees compare notes, and an inconsistently applied sandwich rule is far more damaging than a strict one applied evenly. It should be a setting, applied by the engine to everyone in the same grade, not a judgement made per application.
Ask what problem you are solving
If your absence data shows no long-weekend pattern, the rule is costing you goodwill for nothing.
If it does show one, the rule is one answer — and a conversation with the four people responsible may be a better one.