Christmas Temp Staff: A Small Employer’s Payroll Guide

Christmas temp staff go through payroll in the same way as permanent staff: you collect their details, report them to HMRC on or before their first pay day, and assess them for pensions and holiday. A short contract shortens the job, but it does not remove any of the steps. What makes seasonal hiring harder is the speed, because three new starters in one week can break a process built for one.

Key takeaways

• A temp on a six-week contract still has to be set up properly from their first pay.
• The starter checklist does the job when someone has no P45, but it should be collected before the first pay day.
• Holiday builds up as they work, and any balance has to be paid at the end.
• Pension assessment happens on each payment, so a change in hours can change the answer.
• The leaver stage matters as much as the starter stage: most January problems begin there.

What is a seasonal or temporary worker?

It is someone you take on for a limited period to cover a busy spell. It is not a special tax status. Most Christmas shop, warehouse and hospitality staff will be employees or workers, with the rights that come with that, including at least the correct minimum wage (check the current rates on GOV.UK). Our guide to your first employee's payroll setup covers registering as an employer, if you have not yet done so.

Sort your temps by situation, not by contract length

The contract length is rarely what changes your payroll action. The situation of the person is. This table is the sorting we suggest doing on the day someone accepts the job.

HMRC's starter checklist warns that an incomplete form can lead to too much or too little tax. It is also not meant for someone who has already had their first pay, so collect it before that first payroll run.

Step by step: from offer to final payslip

1. Before they start: carry out your right-to-work check. It is a separate duty from payroll.
2. Day one: collect personal details, the P45 or starter checklist and student loan details.
3. First pay day or earlier: add them in your payroll software and send a Full Payment Submission (FPS), as set out in GOV.UK's new employee steps.
4. Every pay run: assess them for auto-enrolment, and track hours for holiday.
5. Before the last shift: decide how any unused holiday will be taken or paid.
6. Final pay: include outstanding holiday, report the leaving date on the FPS and issue a P45.

Worked example: three temps, one gift shop

Illustrative example. "Marlowe Gifts" is an invented independent shop paying staff weekly, already running PAYE. It takes on Asha, a student, for six weeks; Ben, who keeps a weekday job; and Cleo, who starts with a P45.

Each is paid an illustrative £13 an hour; the shop checks this meets the minimum wage for each person's age. Asha works 100 hours in total, earning £1,300. Using the common irregular-hours accrual rate of 12.07% of hours worked, she builds up about 12 hours of holiday (100 × 12.07% = 12.07 hours), worth about £157. She takes none of it during the December rush, so about £157 goes into her final pay.

Asha is 19, so she is assessed for pensions each week but is not an eligible jobholder. Ben is 34. Most weeks he falls below the earnings trigger, but in the week before Christmas he works double hours. That one week could change his assessment unless Marlowe has validly postponed. This is exactly the sort of surprise that a weekly assessment catches, and a once-only check at hiring does not.

Pensions: the short-contract trap

According to The Pensions Regulator, seasonal and temporary staff must be assessed, including those engaged for only a few days. Postponement can defer the duty by up to three months, which often covers a Christmas contract, but it comes with a notice requirement and staff can still ask to join. Check current age and earnings triggers each tax year. Our auto-enrolment guide explains the wider duties.

Common mistakes

• Paying from the till "until the paperwork arrives". Every wage goes through payroll. Cash without records is not a shortcut, and it creates a problem for both of you.
• Reporting after pay day. Your report to HMRC is due on or before each payday, including for a brand-new temp.
• Forgetting unused holiday. The most common seasonal underpayment. See our holiday pay guide.
• Leaving temps on the system in January. A missing leaving date confuses year-end reporting and that person's next employer.
• Assuming sick pay does not apply. Statutory Sick Pay rules changed in April 2026. Check the current position on GOV.UK.
• Reusing a returner's old record. Treat each season as a new start unless your software and adviser say otherwise.

Hiring for December and short of time? Our payroll service costs from £25 a month per employee, and we can handle starters, leavers and reporting. Contact us before your first temp's pay day, or see our pricing.