Tax codes

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If you have a K in your tax code

Tax codes with a ‘K’ mean you have income or deductions which are higher than your tax-free Personal Allowance and are not already being taxed.

For example, this can happen when you:

Your employer or pension provider uses the K tax code so that you pay tax for your other income or deductions at the employment or pension that the code is used on.

Employers and pension providers cannot take more than half of your pre-tax wages or pension when using a K tax code.

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