Christmas Temp Job Tax UK 2026/27: Why You're Emergency-Taxed and How to Fix It
Taking a seasonal Christmas job on top of your main employment (or as your only job) often means being put on an emergency or BR tax code, losing 20-40% of your pay upfront. Here's exactly why it happens and how to get overtaxed money back fast.
Why your Christmas job pay looks smaller than expected
Every November and December, hundreds of thousands of people take on seasonal retail, warehouse and hospitality roles to cover Christmas demand — and a large proportion are surprised at how much tax comes out of their first few payslips. This isn't usually a mistake; it's how PAYE is designed to work when an employer doesn't yet have full information about your tax situation, and understanding the mechanism means you can either avoid overpaying in the first place or know exactly how to get the money back.
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Open Tax Code Checker calculatorScenario 1: it's your only job this tax year
If the Christmas role is genuinely your first and only paid work in the current tax year (a student's first job, or someone returning to work after a career break), and you don't have a recent P45 from a previous employer to give the new one, you'll typically be placed on an emergency tax code — commonly 1257L on a "Week 1/Month 1" basis.
This code still gives you the full £12,570 annual Personal Allowance, but crucially applies it only to that pay period, rather than spreading it cumulatively across the tax year as normal PAYE does. In practice, this usually works out fine for short seasonal contracts if your weekly/monthly pay stays below the pro-rata allowance — but if you get an unusually large pay packet in one period (a big Christmas bonus, overtime-heavy week), that period can be taxed more heavily than it should be, because the code doesn't "remember" your unused allowance from earlier weeks with no income.
Worked example: 8-week Christmas warehouse job, £2,800 total pay
If paid evenly across 8 weeks at £350/week under an emergency Week 1 basis, each week's pay is compared against the weekly equivalent of the Personal Allowance (£12,570 ÷ 52 = £241.73). At £350/week, taxable pay each week is £350 − £241.73 = £108.27, taxed at 20% = £21.65/week, totalling £173.20 in tax over 8 weeks.
If this worker has no other income all year and the £2,800 total is their entire annual income, they should owe £0 tax overall (since £2,800 is well below the £12,570 annual allowance) — meaning the full £173.20 deducted is a refundable overpayment, typically returned automatically the following spring/summer once HMRC reconciles the year's PAYE records.
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Open Take-Home Pay calculatorScenario 2: it's a genuine second job
If you already have a main job and take on Christmas work as extra income, your new employer will almost always apply a BR (Basic Rate) code, taxing 100% of that job's pay at 20%, with no Personal Allowance at all — because HMRC's default assumption is that your Personal Allowance is already fully used against your main employment.
Worked example: main job £24,000/year + Christmas second job £1,800 total
The main job is taxed normally through its own tax code, using the full £12,570 Personal Allowance across the year as usual. The Christmas second job, on a BR code, is taxed at a flat 20%: £1,800 × 20% = £360 in tax, with no allowance applied to this income specifically.
Is this correct? If total combined income (£24,000 + £1,800 = £25,800) is below the £50,270 higher-rate threshold, then yes — every extra pound earned above an already-fully-used Personal Allowance is correctly taxed at 20% under the basic rate, so BR is actually the right outcome here, not an error. The confusion is usually about why no allowance applies to the second job's payslips, not that the tax is wrong overall.
When you might actually be overtaxed on a second job
If your main job pays less than the full £12,570 Personal Allowance (for example, a part-time role earning £8,000/year), then some of your Personal Allowance is going unused against your main job — and a flat BR code on your Christmas second job means you're missing out on using that spare allowance, paying 20% from the very first pound of the second job when some of it should be tax-free.
In this situation, you can contact HMRC (or use your Personal Tax Account online) to ask for your Personal Allowance to be split between the two employers, so both jobs get some tax-free pay rather than concentrating it all on the lower-earning main job.
Getting overpaid tax back
If your Christmas job ends and you don't work again before the tax year finishes (5 April), HMRC's systems typically identify the overpayment through end-of-year PAYE reconciliation and issue a P800 tax calculation followed by a refund, usually appearing from around May to June the following tax year. If you'd rather not wait, you can check your tax position via your Personal Tax Account on gov.uk or contact HMRC directly — for straightforward, clearly overpaid seasonal work, refunds are generally processed without dispute once the year's figures are confirmed.
uk-emergency-tax-codeFrequently asked questions
Why is all my Christmas temp job pay taxed?
If it's your only job and you haven't given your new employer a P45 from a previous job this tax year, you're often placed on an 'emergency' tax code (typically 1257L on a Week 1/Month 1 basis) which taxes each pay period as if it were the only one, ignoring your unused Personal Allowance from earlier in the year. This can result in tax being deducted even on quite modest weekly pay. If it's a second job alongside your main employment, HMRC usually applies a BR (Basic Rate) code, taxing all of the second job's income at 20% with no Personal Allowance applied at all, since your main job already uses it.
What is a BR tax code and why do second jobs get it?
BR stands for 'Basic Rate' — it taxes 100% of your pay from that job at 20%, with no tax-free Personal Allowance applied, because HMRC assumes (correctly, in most cases) that your Personal Allowance is already being used against your main job's income. This is standard and not necessarily wrong — but if your combined income across both jobs is actually below £50,270, you might be paying more tax overall than necessary if the allocation isn't optimised between the two employers.
How do I get emergency tax back from a Christmas temp job?
If you're on an emergency Week 1/Month 1 code and the job ends without you working elsewhere for the rest of the tax year, HMRC will typically identify the overpayment when you file (or when they reconcile PAYE records) and issue a refund automatically, usually a few months after the tax year ends (from around May/June). You can also proactively claim via a P800 review or by contacting HMRC directly if you don't want to wait, especially if the sum is significant.
Will my main job's tax code change because of a Christmas second job?
It shouldn't automatically, but you can ask HMRC to reallocate your Personal Allowance between your two jobs if you know in advance your Christmas job will be your lower earner — for example, splitting the Personal Allowance so both jobs get some tax-free pay rather than concentrating it all on your main job and taxing the second job at a flat 20% from the first pound.
Do I pay National Insurance on Christmas temp job earnings?
National Insurance is calculated per job (not combined across jobs, unlike income tax), so if your Christmas temp job pays you £250/week and this is below the weekly NI Primary Threshold (£242/week in 2026/27, equivalent to £12,570/year), you generally won't pay NI on that job specifically, even if you have another job earning above the threshold too, subject to HMRC's rules on preventing under-deduction across multiple jobs for higher earners.
Should I tell my main employer about a Christmas second job?
You're not legally required to, and your main employer's payroll isn't automatically informed about a second job — HMRC handles the tax code allocation separately based on what you or your new employer tell them (usually via a starter checklist if you don't have a recent P45). It's generally simpler to let HMRC manage the tax codes correctly across both jobs rather than trying to coordinate directly with employers.
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