What is the 1263L tax code?

What is the 1263L tax code?

The 1263L tax code means you can earn £12,630 in the tax year before paying Income Tax. That is £60 more than the standard tax-free amount of £12,570, which most people have under the common 1257L code.

The extra £60 is not random. It almost always means HMRC has accepted a claim for work expenses, most often the flat rate allowance for washing or maintaining a work uniform, and has built it into your code. Your employer then deducts slightly less tax from each payslip.

This guide explains how tax codes work, why yours might say 1263L, what it is worth, and how to claim if you think you qualify but are still on 1257L.

Source: Tax codes (GOV.UK)

How do tax codes work?

Your tax code tells your employer or pension provider how much Income Tax to take from your pay. HMRC works it out and sends it to them. You will have a code for each job or pension you have.

The numbers show your tax-free amount for the year. Multiply them by ten. So 1257 means £12,570 and 1263 means £12,630. That figure normally starts with your Personal Allowance, the £12,570 most people can earn each year before Income Tax is due, then goes up or down for your circumstances.

The letter L means you are entitled to the standard Personal Allowance. If you live in Scotland your code starts with an S, and in Wales with a C, so you might see S1263L or C1263L. The tax-free amount is the same, but Scotland applies its own rates and bands.

Source: Tax codes (GOV.UK)

Why is your tax code 1263L instead of 1257L?

The £60 difference usually comes from a flat rate expense. A flat rate expense is a fixed amount HMRC lets employees in certain jobs deduct each year for the cost of cleaning, repairing or replacing a uniform, specialist clothing or small tools, without needing receipts.

£60 is the standard amount for jobs not on HMRC’s industry list. Many listed jobs get more. Agricultural workers can claim £100, joiners £140, nurses £125 and uniformed ambulance staff £185. Someone on a higher flat rate would have a different code, so 1263L usually points to the basic £60 uniform claim.

To qualify, the clothing must be a recognisable uniform or specialist workwear such as overalls or safety boots, and you must pay for its upkeep yourself. You cannot claim for buying clothes in the first place, for everyday clothing even if your employer sets a dress code, or if your employer washes your uniform or pays you back.

Source: Check how much tax relief you can claim for uniforms, work clothing and tools (GOV.UK)

How much is the 1263L tax code worth?

Less than the £60 itself. You get tax relief on the £60, not the £60 in cash. At the 20% basic rate that is £12 a year. At the 40% higher rate it is £24 a year. Small, but it arrives automatically once the code is set, year after year.

Take an illustrative example. Ellie works as a chef in a Birmingham restaurant and washes her kitchen whites at home. Chefs fall under the food industry rate of £60, so her claim moves her code from 1257L to 1263L and saves her £12 a year at basic rate. Because claims can be backdated for the 4 previous tax years, her first claim is also worth roughly £48 for past years on top. This example is for illustration only.

Source: Claim tax relief for your job expenses (GOV.UK)

What other job expenses can change your tax code?

Uniform costs are one of several employment expenses that attract tax relief. The general rule is that you must have paid for something yourself, needed it only for work, and not been reimbursed by your employer.

1. Business mileage in your own vehicle: 45p a mile for the first 10,000 miles in a car or van, then 25p a mile, with 24p for motorcycles and 20p for bicycles. Ordinary commuting does not count, you must keep mileage logs, and any mileage allowance from your employer is deducted first.
2. Professional fees and subscriptions: claimable only if you must pay them to do your job, or the body is on HMRC’s approved list, and your employer has not paid them for you.
3. Working from home: this relief cannot be claimed for the current 2026/27 tax year. You can still claim for the 4 previous tax years, but only if you had to work from home, for example because your employer had no office. Choosing to work from home does not qualify.

That last point catches people out. The £6 a week home working claim that became well known during the pandemic has been tightened over several years and is now closed for the current year, so treat any article still promoting it as a live saving with caution.

Source: Claim tax relief for your job expenses (GOV.UK)

How do you claim if you think you qualify?

Use HMRC’s online claim service on GOV.UK. It checks whether you are eligible, and for flat rate uniform claims you do not need to send any evidence or receipts. Claims for exact amounts, mileage or subscriptions need supporting records.

You can claim for the current tax year and the 4 previous tax years. For the current year HMRC will usually adjust your tax code, which is how 1263L appears. For earlier years HMRC will adjust your code or send a refund. If you already complete a Self Assessment tax return, you must claim through the return instead.

Source: Claim tax relief for your job expenses (GOV.UK)

What should you do if your tax code changes?

Tax codes change when your circumstances do. A new job, a company benefit, untaxed income or the end of an expense claim can all trigger a new code. HMRC will normally write to you or notify you through your online tax account.

When a new code appears on your payslip, check it makes sense against what has changed in your life. You can see your current code on your payslip, in the HMRC app or in your online tax account. If the code looks wrong, contact HMRC promptly, because a wrong code means paying too much or too little tax, and underpayments have to be paid back later.

Source: Tax codes (GOV.UK)

Frequently asked questions

Is 1263L better than 1257L?

Slightly. It gives you £60 more tax-free income each year, worth £12 at basic rate or £24 at higher rate. It is not a windfall, just a work expense claim reflected in your code.

Will I keep the 1263L tax code every year?

Usually the expense carries forward automatically once HMRC has it in your code. But you must tell HMRC if you stop qualifying, for example if you change to a job with no uniform or your new employer covers laundry costs. Keeping relief you are no longer entitled to leads to a tax bill later.

Can I still claim working from home tax relief?

Not for the current 2026/27 tax year. You can still claim for the 4 previous tax years if you were required to work from home in those years and paid extra household costs. HMRC asks for evidence that home working was a requirement, not a choice.

Does the 1263L code mean I am owed a refund?

Not by itself. The code gives you the relief gradually through each payslip. A refund only arises if you claim for past years, or if you were on the wrong code and overpaid.

What does a K at the start of a tax code mean?

A K code is the opposite situation. It means untaxed income or benefits, such as a company car, are worth more than your tax-free allowance, so an amount is added to your taxable pay rather than taken off. If you have moved from an L code to a K code unexpectedly, check it with HMRC.

Source: Tax codes (GOV.UK)

How WV4 Accountants can help

A tax code is easy to ignore and easy to get wrong. Whether yours says 1257L, 1263L or something less familiar, WV4 Accountants can help you:

1. Check your current tax code and explain exactly how HMRC has calculated it.
2. Identify work expenses you can claim, including backdated claims for the last 4 tax years.
3. Deal with HMRC on your behalf to correct a wrong code or recover overpaid tax.
4. Handle your Self Assessment tax return if your expenses or other income mean you need one.

If you are not sure what your 1263L tax code means for your pay, or whether you are missing a claim, get in touch with WV4 Accountants for a friendly, no pressure conversation.

Important note: This article provides general information. Tax treatment depends on individual circumstances. Current HMRC guidance should be checked before action is taken.