National Insurance Calculator UK

Calculate National Insurance contributions based on your salary. See employee and employer contributions.

Free, accurate calculator with no signup required.

Use the Calculator

Enter your details below to get started with National Insurance:

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Provide the required details accurately

Calculate Results

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Use current year figures

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Verify with official sources

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What is this calculator used for?

National Insurance Calculator is designed to help you make accurate calculations based on current UK rates and regulations.

Is this calculator accurate?

Our calculator uses current UK tax rates and regulations. For professional advice, consult with a qualified accountant or advisor.

Do I need to create an account?

No, this calculator is completely free and requires no registration or account creation.

Is my data private?

All calculations are performed in your browser. No data is sent to any server or stored.