National Insurance


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National Insurance has seen many changes and developments since its introduction in 1911.

Paid by working people from the age of 16 to they become eligible for a State Pension, a unique National Insurance number is allocated to every child when Child Benefit is first claimed. This number can be used as an identifier in the same way as a taxpayers UTR when speaking to HMRC.

Amounts paid over time influence our eligibility to claim certain benefits, including the state pension, although people in some circumstances may receive National Insurance credits which protect their access rights to those benefits.

National Insurance income is a key part of the UK Treasury’s annual income, of around 18%.

In this section we’ve addressed some of the more common questions or areas around the subject. If you’d like to see any specific questions answered in future, please let us know!

Image of National Insurance form with bank notes as illustration for post '

What are National Insurance Classes?

There are five separate National Insurance Classes; in this post we’ll examine each, as they cause some confusion!

Tax Rates 2023/24

We’ve listed below the latest tax rates and allowances as announced in the 2023 Spring Budget, or before.

Related News Items

Why not take a look at these sections too, as there is some overlap between our categories and we’d hate you to miss out!

P11Ds

Personal Tax

Payroll

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