(Or: “Yes, You Can Take the Time Off — But Payroll Still Has to Do Maths”)
Unpaid leave sounds wonderfully simple.
“They didn’t work, so we don’t pay them.”
Job done. Kettle on. Next problem.
Except… payroll doesn’t work like that. And unpaid leave is one of those deceptively small things that can trip up tax, National Minimum Wage, RTI reporting, and employee relations if it’s not handled properly.
So let’s walk through how to payroll unpaid leave correctly, calmly, and without accidentally upsetting HMRC (which is always best avoided).
First: What Counts as Unpaid Leave?
Unpaid leave can include:
- Career breaks
- Extended leave beyond holiday entitlement
- Parental leave (some types are unpaid)
- Authorised unpaid absences for personal reasons
From a payroll point of view, why the leave happened matters less than how it affects pay, hours, and reporting.
And yes — unpaid leave should always be authorised and recorded. Payroll is good, but it’s not psychic.
Step 1: Reduce Pay Accurately (Not Vaguely)
A very common mistake is this:
“They missed a few days — just knock something off.”
Please don’t.
Salaried Employees
For salaried staff, unpaid leave usually means calculating a daily or hourly rate and deducting pay for the time not worked.
The method you use (working days, hours, etc.) must be:
- Fair
- Consistent
- Clearly documented
HMRC doesn’t prescribe a single method — but it does expect whatever method you use to make sense and be applied consistently.
Hourly Paid Employees
This one’s simpler:
- Paid only for hours worked
- No hours worked = no pay
Payroll still needs to record the absence properly, even if the maths is straightforward.
Step 2: Watch National Minimum Wage Like a Hawk
Unpaid leave itself does not breach National Minimum Wage rules.
However — and this is important — pay for hours actually worked must still meet NMW requirements.
According to HMRC:
- You cannot “average” unpaid leave across working hours
- Deductions or unpaid time must not reduce pay for worked hours below NMW
This becomes especially risky if the employee also has:
- Uniform deductions
- Training cost deductions
- Salary sacrifice arrangements
Payroll must check that the final pay for working time still meets NMW. This is one of the most common accidental breaches HMRC finds.
Step 3: Payroll Deductions Still Apply
Lower pay doesn’t mean payroll stops working.
Payroll must still correctly calculate:
- Income Tax
- National Insurance
- Student loan deductions
- Pension contributions (where applicable)
Lower earnings may reduce or eliminate some deductions — but payroll must still process and report them correctly.
Step 4: RTI Reporting (This Is Where People Get It Wrong)
Here’s the HMRC-compliant reality:
- If an employee is paid something, you report that payment on the FPS, on or before payday.
- If an employee receives no pay at all in that pay period due to unpaid leave, there is usually nothing to report for them on the FPS, because no payment was made.
However — and this is crucial:
👉 If no employees are paid in a whole tax month, HMRC expects you to submit an EPS by the 19th of the following tax month to stop them estimating your PAYE bill.
And if unpaid leave means someone won’t be paid for three months or more, the irregular payment indicator may be needed so HMRC doesn’t assume they’ve left.
RTI is about accuracy, not noise — but silence without explanation causes problems.
Step 5: Employment Rights & Fair Treatment
According to Acas, unpaid leave should be handled:
- Transparently
- Consistently
- In line with contracts and policies
Surprise deductions are how payroll ends up mediating awkward conversations. Clear communication prevents that.
❤️ The Love Payroll Bit
At Love Payroll Limited, unpaid leave doesn’t cause panic.
We:
- Calculate pay reductions accurately
- Protect National Minimum Wage compliance
- Handle RTI correctly (FPS, EPS, irregular payments)
- Adjust deductions properly
- Help employers explain it clearly to employees
Because unpaid leave shouldn’t turn into unpaid sleep for business owners.
Final Thought
Unpaid leave isn’t just “no pay” — it’s a payroll process that needs accuracy, consistency, and proper reporting.
Done right, it’s straightforward.
Done badly, it’s surprisingly expensive.
And if you’d rather not think about it at all?
You already know where we are 💙
