True cost

True cost of an employee calculator (UK, 2026/27)

The true cost of an employee is always higher than the salary on the offer letter. For 2026/27 UK employers must pay employer NI at 15% on earnings above £5,000, a minimum 3% pension under auto-enrolment, and carry any per-employee overhead costs on top. The calculator below gives the true total for any salary — annual and monthly — with Employment Allowance modelling for eligible employers.

UK scope: England, Scotland, Wales and Northern Ireland employer payroll planning for the 2026/27 tax year.

Calculate true cost of your employee Full employer cost calculator Cost by salary Employer NI by salary

Sample total cost

£43,363

£3,614 per month on £35,000 salary

Employer NI

£4,500

15% above £5,000 secondary threshold (2026/27)

Pension + overheads

£3,863

Baseline employer pension plus configured overheads

Key assumptions — UK 2026/27
Employer NI: 15% on earnings above the £5,000 secondary threshold
Employer pension: minimum 3% on qualifying earnings £6,240–£50,270
Employment Allowance: up to £10,500 off the NI bill for eligible employers
Worked examples: £30k salary → £34,464/yr · £35k → £40,363/yr · £50k → £58,063/yr

What this page helps you check

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UK assumptions used

Employer NI

15% above £5,000 secondary threshold for 2026/27.

Auto-enrolment pension

Minimum employer contribution 3% on qualifying earnings.

Employment Allowance

Up to £10,500 relief in 2026/27 for eligible employers.

Official UK references

Frequently asked questions

What is the true cost of an employee in the UK?
In 2026/27, the true minimum cost is gross salary plus employer NI (15% above £5,000) plus employer pension (3% of qualifying earnings). A £35,000 salary costs approximately £40,363/year before additional overheads.
How much does a £30,000 employee really cost?
A £30,000 salary costs approximately £34,464/year including employer NI of ~£3,750 and pension of ~£714. With typical overhead assumptions (equipment, software, workspace) the figure rises to approximately £37,464.
What overheads should I include in employee cost?
Common overhead inclusions: desk/workspace cost (£1,500–£3,000/year), IT equipment and software licences (£500–£1,500/year), recruitment amortisation, and training budget. The calculator allows a custom overhead figure.
How does Employment Allowance affect the true cost?
Eligible employers can offset up to £10,500 of employer NI per year with Employment Allowance. For a small team this can significantly reduce per-employee cost — especially for lower salary ranges where NI is a larger proportion of total cost.

UK coverage only. Last reviewed: 19 August 2026. Estimates use 2026/27 assumptions and are for planning, not legal or tax advice.

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Written and reviewed by James Whitfield and the editorial team.

Every figure is checked against current HMRC and GOV.UK guidance and reviewed for the 2026/27 tax year. We explain the numbers in plain English with worked examples. Editorial standards · About us