HMRC explains 11 tax codes on payslip which mean you're owed a refund

HMRC, which is now operating under the Labour Party government, says codes indicate the level at which you are being taxed on your income.

HMRC has explained 11 codes on payslips that reveal if the taxman owes you a tax refund. HMRC, which is now operating under the Labour Party government, says codes indicate the level at which you are being taxed on your income.

GOV. UK has a dedicated webpage where you can view your tax code as well - to check it online, you'll need to register for a free government gateway ID. MoneySavingExpert offers a free tax code calculator that you can use to get a rough idea of whether your tax code is correct.

While no tax calculator can definitively confirm if your tax code is right, it should give you a good indication. If you suspect your tax code is incorrect, you can reach out to HMRC for an investigation by dialling 0300 200 3300. If it turns out you've been underpaying tax, you would be in debt to HMRC as the unpaid tax would need to be reimbursed.

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L - You're entitled to the standard tax-free Personal Allowance. The common tax code is 1257L.

M - Marriage Allowance: you've received a transfer of 10% of your partner's personal allowance (£1,257)

N - Marriage Allowance: you've transferred 10% of your personal allowance to your partner

S - Your income or pension is taxed using the rates in Scotland

T - Your tax code includes other calculations to work out your personal allowance, for example, it's been reduced because your estimated annual income is more than £100,000

0T - Your personal allowance has been used up, or you've started a new job and your employer doesn’t have the details they need to give you a tax code

BR - All your income from this job or pension is taxed at the basic rate (usually used if you've got more than one job or pension)

D0 - All your income from this job or pension is taxed at the higher rate (usually used if you've got more than one job or pension)

D1 - All your income from this job or pension is taxed at the additional rate (usually used if you've got more than one job or pension)

NT - You're not paying any tax on this income

Tax codes starting with K mean you have income that isn’t being taxed another way and it's worth more than your tax-free allowance