Calculators

Free Tools

Tax & Business Calculators

Use our free UK tax and business calculators to make informed financial decisions. Updated for 2025/26 tax year.

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Income Tax Calculator

Estimate your UK income tax liability for 2025/26

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Dividend Tax Calculator

Estimate tax on dividend income for 2025/26

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Corporation Tax Calculator

Estimate CT liability with associated company and period adjustments

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PAYE & NI Calculator

Calculate take-home pay after tax and NI

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Employer NI Calculator

Calculate employer NI contributions

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Directors’ NI Calculator

Annual method NI calculation for directors

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CIS Deduction Calculator

Calculate CIS tax deductions for subcontractors

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VAT Calculator

Add or remove VAT at standard or reduced rate

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Flat Rate VAT Calculator

Compare standard vs flat rate VAT schemes

Planning estimate calculators

These tools are provided for planning and screening only. They use current published rates where stated, but they are not official filing or payroll engines.

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Stamp Duty (SDLT) Calculator

Calculate SDLT for residential property in England & NI

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Capital Gains Tax

Estimate CGT on property or share disposals

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Inheritance Tax Estimator

Estimate potential IHT liability on your estate

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Pension Allowance Calculator

Check your annual pension allowance

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Mileage Allowance Calculator

Calculate tax-free mileage claims (AMAP rates)

Need Help Interpreting Results?

These calculators provide estimates only. For personalised tax advice, speak to our ACCA-qualified team.

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Calculators use 2025/26 HMRC rates and thresholds. Results are estimates only and do not constitute tax advice. © 2026 Nekii Consultancy Ltd.

 
     
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