In retail, hospitality, warehousing and salons, the Christmas hiring decision gets made in September. Not because anyone enjoys planning that far out, but because by the first week of November everyone worth having is already taken by somebody who planned in September.
The decision usually gets made on the headline hourly rate, which is the wrong number. And three things changed in 2026 that make short, low-paid, seasonal contracts cost and behave differently from how they did last Christmas.
What an hour actually costs
The rates from 1 April 2026 are £12.71 an hour for workers aged 21 and over, £10.85 for 18 to 20 year olds, and £8.00 for under-18s and apprentices in their first year (or aged under 19). The accommodation offset, if you provide a room, is £11.10 a day.
Take a 22-year-old doing 12 hours a week for ten weeks from mid-October. That is 120 hours at £12.71, or £1,525.20 in wages. Holiday adds 12.07% of that, which is £184.09. Employer National Insurance runs at 15% on earnings above the secondary threshold of £96 a week: with rolled-up holiday, weekly pay is £170.93, so £74.93 is above the threshold, costing £11.24 a week and £112.39 across the contract.
Total employment cost: £1,821.69. Divided by the 120 hours actually worked, that is £15.18 an hour — a little over 19% above the headline rate.
Two things pull that back. The Employment Allowance is £10,500 for 2026/27, and for most small employers it wipes out the National Insurance line entirely, taking the real cost to £14.24 an hour. Single-director companies with no other employees cannot claim it. And the same shift pattern filled by an 18 to 20 year old costs £1,534.02, or £12.78 an hour — very close to what the 21-plus rate looks like before anyone does the arithmetic.
The headline rate is not the rate. Price Christmas cover at what the hour costs once holiday and National Insurance are in it, or you are budgeting a fifth short.
Right to work: the check, and what changed on 1 October
Do the prescribed check before the first shift, on every hire, with no exception for a six-week job. Done properly and recorded, it gives you a statutory excuse. Skipped, the civil penalty is up to £45,000 per illegal worker for a first breach in a three-year period and £60,000 for a repeat.
From 1 October 2026, section 48 of the Border Security, Asylum and Immigration Act 2025 widens the regime beyond employees to people engaged under a worker's contract, individual sub-contractors, and workers found through online matching platforms. If your Christmas cover arrives through a gig app or as a self-employed contractor, that check is now yours to make rather than somebody else's.
Check everyone identically. Checking only the people whose name or accent prompted a second thought is race discrimination, and it is the version of this that actually ends up at a tribunal.
The paperwork is not optional because the job is short
Every employee and worker is entitled to a written statement of particulars on or before their first day — day one, not two months in. A ten-week contract is not an exception. If this is your first time issuing one, the ground rules are in do you need a written employment contract for your first hire.
Choose the shape deliberately. Casual or zero-hours arrangements suit genuinely unpredictable cover, with the limits set out in what small employers can and can't do with zero-hours contracts. A fixed-term contract suits a known run of weeks — but remember that a fixed-term contract reaching its end date is still a dismissal in law, so write the end date in and let it expire rather than leaving it open and seeing how things go. The detail is in fixed-term contracts: what a small employer can and can't do.
Holiday, and the rolled-up option
Seasonal staff accrue holiday from the first hour, at 12.07% of hours worked. For irregular-hours and part-year workers, rolled-up holiday pay is lawful for leave years beginning on or after 1 April 2024, provided it is paid at the same time as the wages and itemised separately on the payslip. For a ten-week contract it is usually the cleaner method, because nobody is left owed accrued leave they never had a chance to take. The mechanics are in rolled-up holiday pay for irregular-hours and part-year staff.
Sick pay: your Christmas casuals are now in it
This is the change most likely to catch a small employer out this year. From 6 April 2026 Statutory Sick Pay has no waiting days and no lower earnings limit. It is payable from the first qualifying day of absence, to everybody, at the lower of £123.25 a week or 80% of normal weekly earnings.
Under the old rules, most short-term seasonal staff earned below the lower earnings limit and got nothing, so sick pay never appeared in a Christmas budget. Now it does. Our 22-year-old on £170.93 a week has an 80% figure of £136.74, which is above the flat rate, so they receive £123.25 a week. Someone doing six hours a week at £12.71 earns £76.26, so their 80% figure of £61.01 is what they get. A fortnight of flu across two staff is now a real line in the December wage bill rather than a rounding error.
Pensions: usually no, but know where the trigger sits
The automatic enrolment earnings trigger stays at £10,000 for 2026/27, which is £192 a week for weekly-paid staff. Our example at £170.93 is under it, so no automatic enrolment duty arises. But qualifying earnings start at £6,240 a year, or £120 a week, which makes them a non-eligible jobholder: they can ask to opt in, and if they do you have to contribute.
You can also postpone assessment by up to three months, which for a ten-week contract usually means the duty never bites at all. Postponement is not automatic — you have to write to the worker within six weeks of the date you are postponing from.
Four things to do this week
Price the hours at the real rate, not the headline, and put the figure in your December cash forecast. Write down your right-to-work process and apply it to every single hire, including anyone arriving through an agency or a platform. Get the written statement issued before the first shift rather than after it. And decide now whether holiday is rolled up or accrued, because changing your mind in week six creates a payroll correction nobody wants in the middle of the busiest trading month of the year.
Common questions
Do seasonal staff get holiday pay if they only work six weeks?
Yes. Holiday accrues from the first hour worked, with no qualifying period, at 12.07% of the hours actually worked for irregular-hours and part-year staff. Someone doing 120 hours over ten weeks accrues about 14.5 hours of paid leave. You can either let them take it, pay it out when the contract ends, or use rolled-up holiday pay — lawful for irregular-hours and part-year workers for leave years starting on or after 1 April 2024, provided it is paid alongside the wages and shown as a separate line on the payslip. For short seasonal contracts, rolled-up is usually cleanest, because it avoids leaving someone owed leave they had no realistic chance to take.
Can I take on Christmas staff as self-employed instead?
Almost never legitimately. Employment status is decided by the reality of the arrangement, not the label on it: if you set the shifts, provide the equipment, supervise the work and require the person to turn up personally, that is employment however the paperwork reads. Getting it wrong means back-dated PAYE and National Insurance, unpaid holiday, and potentially minimum wage arrears, all payable by you rather than by them. From 1 October 2026 the illegal working regime also extends to individual sub-contractors and platform workers, so the self-employed label no longer moves the right-to-work check onto someone else either. Engage them properly and price it properly.
Do I have to pay sick pay to someone on a ten-week contract?
Since 6 April 2026, yes. Statutory Sick Pay no longer has waiting days or a lower earnings limit, so it is payable from the first qualifying day of absence to every eligible employee regardless of how little they earn. The amount is the lower of £123.25 a week or 80% of their normal weekly earnings. Someone on £170.93 a week gets the £123.25 flat rate, because 80% of their pay is higher than that. Someone on £76.26 a week gets £61.01. This is a genuine change from last Christmas, when most low-paid seasonal staff fell below the earnings limit and received nothing at all.
What is the minimum wage for a 17-year-old doing Christmas shifts?
£8.00 an hour from 1 April 2026. That rate covers workers under 18 who are above school leaving age, and it also covers apprentices who are under 19 or in the first year of their apprenticeship. From their 18th birthday the rate steps up to £10.85, and from 21 it becomes the National Living Wage at £12.71. Diary the birthdays of anyone you take on near an age boundary, because underpaying from the day a rate should have changed is the single most common way small employers end up in minimum wage arrears, and HMRC treats it as underpayment regardless of whether it was an oversight.
