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Employer National Insurance Calculator

Estimate employer National Insurance and total employment cost from a gross salary.

Inputs

Estimate employer National Insurance on employee salary.

What employer National Insurance is

Employer National Insurance is a payroll cost paid by the employer on qualifying earnings above the secondary threshold. It is separate from employee National Insurance and is not deducted from the employee's stated gross salary.

Employment Allowance and reduced rates

Eligible employers may reduce their employer National Insurance bill through Employment Allowance. Different rules can apply to some apprentices, younger employees and veterans, so a standard estimate may overstate the actual charge.

Total employment cost

Salary is only one part of employment cost. Employer National Insurance, workplace pension contributions, benefits, payroll costs and the Apprenticeship Levy can also affect the full budget needed for an employee.

Worked examples

Employee earning £35,000

The calculator estimates employer National Insurance above the relevant threshold and adds it to gross salary to show a simple total employment cost.

How we calculate this

Employer NI is estimated from gross salary above the employer threshold.

The result is shown separately from employee deductions.

Total employment cost combines salary and estimated employer NI.

FAQs

Are these calculations financial advice?

No. These calculators provide estimates based on the figures entered and published UK tax assumptions. They are not personal financial advice.

Which tax year does this use?

The calculator uses 2026/27 UK tax assumptions, including Income Tax and National Insurance thresholds.

Will my payslip or tax return match exactly?

Not always. Tax codes, payroll timing, pension scheme type, benefits, expenses and HMRC records can change the final result.

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