True cost to employ.

Total employer payroll cost includes more than salary. Employer NI (13.8% above a local threshold), pension auto-enrolment (3% min, 5% common), benefits (5-15% depending on package). Total burden: 20-35% on top of gross salary. A 50k employee actually costs 62-68k to employ.

500,000 total salaries × 13.8% NI + 5% pension + 5% benefits = 69k + 25k + 25k = 119k extra. Total payroll cost 619,000. Burden 23.8% over salaries. For workforce planning, hiring decisions, and budgeting, the burdened cost matters - not just headline salary.

Burden varies by country and benefit choices. Employer cost premium: 20-30%. 30-40% (higher social contributions). 25-35% (varies by state, healthcare). 12-18% (minimal social contributions). Knowing total cost informs labour arbitrage decisions and outsourcing analysis.

A worked example

Try the defaults: gross salary total of 500,000, employer ni of 13.8%, employer pension of 5%, benefits of 5%. The tool returns 619,000.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Gross Salary Total, Employer NI %, Employer Pension %, and Benefits %. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

The formula behind this

Total cost = salary × (1 + NI + pension + benefits %). Burden = (cost ÷ salary - 1) × 100. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

What the headline number hides

Gross pay, net pay, and what actually lands in your account can differ by thousands depending on tax code, benefits, pension contributions, and student loan deductions. This tool isolates one piece of that picture — always pair it with a take-home calculator for the full view.

What this doesn't capture

Tax bands, pension contributions, student-loan deductions, and benefits-in-kind sit outside this calculation. The figure is the headline; your actual position depends on local tax rules and personal circumstances. Pair with a dedicated take-home calculator for the full picture.