Self-Employed vs Employee Calculator

Why Self-Employment Gross Needs Big Adjustments

A self-employed person billing 100,000 gross does not take home 100,000. Business overhead comes out first, then the social contributions that a self-employed worker pays on both sides rather than one. Between them those two commonly consume 30 to 50% of gross revenue before anything reaches personal income, so a 100,000 gross year often nets somewhere between 50,000 and 70,000.

The comparison people usually reach for is the wrong one. On the loaded figures the self-employed net is 68,000, and the salaried package that matches it is not an 80,000 or 100,000 salary but something closer to a 52,000 salary carrying 30% benefits, since that also totals around 68,000. Comparing a gross freelance figure against a gross salary overstates the freelance side by roughly a third before the conversation starts, which is exactly the gap this calculator makes explicit.

What Self-Employment Tax Actually Covers

The structural point holds across jurisdictions even though the rates do not. An employee’s social contributions are split, with the employer paying one share and the worker the other, and only the worker’s share appears as a deduction from salary. A self-employed person carries both shares personally, so the same nominal contribution rate costs them roughly twice what it visibly costs an employee.

Rates, thresholds and what the contribution buys vary widely: some systems fund a state pension and public healthcare from it, others separate the two, and several charge self-employed workers on a different base or at a different rate from employees. The calculator takes the rate as a direct input for that reason. The figure to enter is the combined contribution that falls on self-employment income in the relevant country, at the relevant income level, rather than any headline percentage.

Realistic Overhead for Solo Self-Employment

Solo self-employed workers commonly run overhead in the region of 15 to 25% of gross revenue, though it varies widely by trade. Software subscriptions for accounting, design, client management and storage. Equipment and its replacement. Professional indemnity and liability cover. Home office or co-working space. Accountancy and legal fees. Marketing, a website and its hosting. Training and professional development. Health cover in countries where employers usually provide it.

Overhead is the cost of running the business rather than an optional extra, and treating it as one is the most common way a freelance rate is set too low. The calculator makes it an explicit input so it cannot be quietly omitted from the comparison.

What Employee Benefits Actually Cost to Replace

The share of total compensation that sits outside the wage is measurable, and it varies far more by country than the usual rule of thumb allows. Eurostat puts employer non-wage costs at 24.8% of total labour cost across the European Union in 2025, which is about 33% on top of wages, with a range from 4.8% in Romania and 5.8% in Malta to 32.3% in France and 31.7% in Sweden.

Applied to a 70,000 salary, a loading of 25 to 35% is 17,500 to 24,500 a year. An employer retirement contribution of 3 to 6% accounts for 2,100 to 4,200 of that, and 20 to 30 days of paid leave is worth roughly 5,385 to 8,077 at the same daily rate. Health cover carries the largest share in countries where it is privately funded and almost none where it is not, which is why the benefits input takes a figure rather than a percentage.

Worked Example Comparing Typical Options

Employee salary 70,000 with benefits of 21,000, which is a 30% loading. Self-employed gross 100,000, overhead 20%, contributions 15%.

The employee package totals 91,000. The self-employed figure falls to 80,000 after overhead and 68,000 after contributions, so the employee is ahead by 23,000 while grossing 30,000 less. That is the systematic gap between a gross revenue figure and what remains once both deductions have run.

Reading it backwards is more useful than reading it forwards. To match the 91,000 package on the same 20% overhead and 15% contribution rate, self-employed gross has to reach about 133,800: roughly 47% above the employee’s total compensation, or 91% above the 70,000 salary alone. Which of those two figures applies depends entirely on whether the salary being compared includes benefits, and most rules of thumb never say.

When Self-Employment Wins Financially

High-margin consulting and specialised services where overhead stays near the bottom of its range and rates hold well above the salaried equivalent. Portable work where location flexibility carries value the arithmetic cannot price. Situations where legitimate business deductions materially reduce the taxable base. Ventures where the upside includes equity in a business that could be sold, not just this year’s cashflow. Work that can be delegated to contractors or staff, which is what breaks the ceiling a single person’s hours impose.

When Employment Wins Financially

Roles where benefits, especially health cover in markets where it is privately funded, would be expensive to replace individually. Careers with promotion paths that compound over time. Positions carrying substantial retirement contributions or share awards. Stable roles in sectors with steady demand but weak self-employed equivalents. Early-career positions where skills and networks build faster inside an organisation. Sectors where self-employed revenue swings hard enough that stability is worth more than the upside.

The Tax Optimisation Angle

Self-employment generally allows legitimate business costs to be deducted before tax: a proportion of home running costs, vehicle use, equipment, professional development, software, marketing and some travel. Most systems also offer a choice of legal structure, and the choice can change the effective rate on the same income by several percentage points, though which structures exist and what they save differs entirely by country.

This calculator does not model any of that. The overhead percentage stands in for deductible costs in aggregate, and the contribution rate is a single flat figure. For anything structural, the rules are country-specific and change often enough that a qualified adviser is the reliable route rather than a general figure.

Risk and Variability Considerations

Employee income is normally predictable. Self-employed income moves with client demand, project timing and the wider economy, and the concentration of that risk varies: Eurostat found that almost two thirds of self-employed people had more than nine clients, while only 3% depended on a single dominant client, in data extracted in 2018.

Stability has value beyond the arithmetic, since a predictable income supports mortgage applications, insurance and planning in ways a variable one does not. This calculator compares a single year, so a fair multi-year view means entering a self-employed figure closer to a bad year than a good one rather than an average of the two.

What the Calculator Does Not Model

Country-specific tax structures and thresholds. Income tax itself: the employee side is shown gross, and the self-employed side has only the social contribution deducted, so both figures sit before income tax and are not directly comparable as take-home. Equity value if the self-employment builds into a saleable business. Career trajectory across decades. Location and lifestyle flexibility. Income variability and what it means for planning. Retirement contribution limits that differ by employment type. Health coverage gaps between arrangements. The additional evidence lenders often require from self-employed applicants.

Common Self-Employed vs Employee Mistakes

Comparing gross self-employed revenue against a net or gross salary without adding benefits value to the salary side. Reading the two results as equivalent take-home when only one has had a tax deducted. Underestimating overhead, or treating it as optional. Leaving the contribution rate out entirely. Ignoring income variability, or treating one strong year as the sustainable norm. Overlooking career trajectory across a decade or two. The calculator answers the single-year question; risk, stability and trajectory sit around it.