Total Cost of Employment Calculator
Calculate the true cost of employing someone in the UK. Including employer NI and pension, see the full picture beyond headline salary.
Gross annual salary before deductions
Minimum 3% for auto-enrolment. Applied to qualifying earnings (£6,240-£50,270).
Enter an annual salary to see the total cost of employment
Understanding the True Cost of Employment
Beyond the Headline Salary
When budgeting for a new hire, the salary figure is just the starting point. UK employers must also pay employer National Insurance contributions (15% on earnings above £5,000) and workplace pension contributions (minimum 3% on qualifying earnings). For a £35,000 salary, these mandatory costs add approximately £5,820 to the total, making the true cost around £40,820 — roughly 17% more than the headline salary.
Employer National Insurance
Employer NICs are the single largest additional cost of employment. At 15%, they apply to all earnings above the secondary threshold of £5,000 per year (2025/26). Unlike employee NI which has bands and caps, employer NI is a flat rate with no upper limit. This means the higher the salary, the greater the NI cost. Some employers may qualify for the Employment Allowance (up to £10,500 off their annual NI bill), and there are reduced rates for employees under 21 and apprentices under 25.
Workplace Pension Costs
Under auto-enrolment, employers must contribute a minimum of 3% of qualifying earnings to a workplace pension. Qualifying earnings are the portion of salary between £6,240 and £50,270 (2025/26). Many employers choose to contribute more than the minimum to attract talent. Some employers use salary sacrifice arrangements to reduce both employer and employee NI costs, which can partially offset the pension expense.
Hidden Costs of Employment
Beyond NI and pension, employers should budget for: recruitment costs (advertising, agency fees, interview time), equipment and workspace, training and development, employee benefits (healthcare, life insurance), holiday pay and sick pay cover, and management time. Studies suggest the total cost of employment can be 1.25 to 1.4 times the base salary when all costs are included.
Apprenticeship Levy
Employers with an annual pay bill of over £3 million must pay the Apprenticeship Levy at 0.5% of their total pay bill. This is offset by a £15,000 annual allowance. The levy funds can be used towards the cost of apprenticeship training. Smaller employers who do not pay the levy can still access apprenticeship funding, with the government covering 95% of training costs.
Employer Cost FAQ
How much does it really cost to employ someone in the UK?
As a rule of thumb, the true cost of employment is around 115-120% of the base salary when including only mandatory costs (employer NI and pension). When including all costs (benefits, recruitment, training, equipment), it is typically 125-140% of the salary. For a £30,000 employee, expect to pay roughly £34,000-£35,000 in mandatory costs alone.
Can I reduce my employer NI costs?
Yes. You may qualify for the Employment Allowance (£10,500 off your annual NI bill). Salary sacrifice pension arrangements can reduce NI costs for both employer and employee. Hiring employees under 21, apprentices under 25, or veterans in their first year of civilian employment attracts zero employer NI up to £50,270. You can also consider using self-employed contractors for project work, though HMRC IR35 rules must be carefully followed.
Do contractor costs include employer NI and pension?
No. When engaging a genuinely self-employed contractor, you do not pay employer NI, pension, or holiday pay. However, the contractor's day rate will typically be higher to account for these costs. Also, IR35 rules mean that if HMRC determines the contractor is really an employee, the employer may be liable for the unpaid NI and tax.
Track Employment Costs in Real Time
Grove gives you a complete view of your workforce costs, including salary, NI, pension, and benefits. Make informed hiring decisions with real data.
30-day money-back guarantee. Cancel anytime.