BIK Tax Calculator UK
Instantly calculate the tax liability on company-provided benefits with our free, up-to-date tool. Designed for UK employees and employers, this calculator eliminates the complexity of understanding HMRC rules for the 2025-26 tax year.
Simply enter your salary and select your benefit—such as a company car, private health insurance, or a beneficial loan. The calculator will provide a detailed breakdown of the taxable benefit value, your income tax, and the employer's National Insurance due.
It's the fastest way to understand the real tax cost of your employee benefits package and make informed financial decisions.
Key Features:
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Comprehensive: Covers company cars, fuel, vans, private medical insurance, and beneficial loans.
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Accurate: Based on official HMRC rates and thresholds for the 2025-26 tax year.
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Transparent: Provides a full "Calculation Basis" explaining exactly how your tax is figured.
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User-Friendly: Clean, intuitive design that guides you step-by-step.
Benefits in Kind Tax Calculator
Income Tax Rates: 20% (Basic), 40% (Higher), 45% (Additional)
Employer NI (Class 1A): 15% | Employee NI on BiK: 0%
Tax Calculation Results
Calculation Basis
Tax Treatment Summary
- • Employee Income Tax: Taxed at your marginal rate (--%) on the benefit value
- • Employee NI: Employees do NOT pay National Insurance on benefits in kind
- • Employer NI (Class 1A): Employer pays 15% (2025-26 rate, increased from 13.8% in 2024-25)
- • Reporting: Must be reported on P11D by 6 July 2026 (or payrolled from April 2025)
- • Note: Mandatory payrolling of BiK begins April 2026