K100

Tax Code K100 Explained

Name: PayslipIQ
Author: PayslipIQ

£1,000 added to taxable income

K100K Code

What does K100 mean?

K100 means you have untaxed income (benefits, state pension, underpayments) worth £1,000 more than your personal allowance. This amount is added to your taxable pay. Your employer cannot deduct more than 50% of your gross pay through a K code.

Annual tax-free allowance

-£1,000

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Example

An employee with company benefits totalling £13,570 per year.

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Disclaimer: PayslipIQ provides educational guidance only. It is not financial, tax, or legal advice. Figures are estimates based on the data you entered. Always verify against your employer's payroll, your HMRC personal tax account, or a qualified adviser before making decisions.