You negotiated €40,000. Your bank account disagrees. The gap between the salary in your contract and the money that actually arrives each month confuses almost everyone at their first job — and plenty of people at their fifth. Here's exactly where the money goes, and how to know your real number before you accept an offer.
Gross vs net: the two salaries you have
Gross salary is the headline number — what your employer pays for your work before anything is taken out. It's what job ads quote, what you negotiate, and what raises are calculated on.
Net salary (take-home pay) is what lands in your account after deductions. Depending on your country and income level, the difference typically runs 20–45%. That's not a rounding error — on a €40,000 gross salary, it's easily €800–1,200 a month you never see.
The three big deductions
1. Income tax
Almost every country taxes income progressively: chunks of your income are taxed at increasing rates. A crucial detail most people get wrong — moving into a higher bracket does not mean your whole salary is taxed at the higher rate. Only the euros above the threshold are. A raise can never leave you with less net pay because of brackets alone. Estimate your bill with the income tax calculator.
2. Social security contributions
Pension, healthcare, unemployment insurance — usually a percentage of gross, split between you and your employer. The employee share commonly runs 10–20% in Europe. Unlike income tax, these are typically flat percentages from the first euro, which is why even modest salaries see a substantial gross-to-net gap.
3. Everything else
Depending on where you live and what you've signed up for: church tax, solidarity surcharges, private insurance premiums, pension top-ups, union dues, or salary-sacrifice schemes. Individually small, collectively noticeable.
A worked example
Take a €40,000 gross annual salary in a typical European setup:
Social contributions (~15%): −€6,000
Income tax on what remains (effective ~18%): −€6,120
Net: roughly €27,880, or about €2,323/month
That's a 30% total wedge — and the effective tax rate (what you actually paid overall) is far lower than the marginal rate (what your next euro would be taxed at). Confusing the two is the most common salary-math mistake there is. Run your own numbers with the take-home pay calculator to see the split for your situation.
Comparing job offers: always compare net
Two offers, same gross, can produce very different bank balances:
Different countries (or even regions) mean different tax and contribution rates.
Benefits change the picture: employer pension contributions, meal vouchers, health insurance, a company car — all worth real money that never shows up in gross salary.
Contract types matter: freelance/contractor gross is not comparable to employee gross, because contractors pay both halves of social contributions and get no paid leave.
And if you're weighing an hourly offer against an annual one, the salary to hourly calculator converts in both directions — including what your real hourly rate becomes if the "40-hour" job actually runs 50.
Making the net number bigger
You can't opt out of taxes, but the legal levers are worth knowing: pension contributions are usually deducted before tax (so €100 saved costs you maybe €60–70 of net pay), many countries allow deductions for commuting, home office, or professional expenses, and tax-advantaged benefits are often better than an equivalent cash raise. Once the net number lands each month, put a slice of it to work — our compound interest guide shows why even €100/month matters enormously over time, and the savings goal calculator turns any target into a monthly amount.
The bottom line
Gross is for negotiating; net is for living. Before you accept any offer, sign any lease, or plan any budget, convert the headline salary into take-home pay with the take-home pay calculator — it takes under a minute, and it's the difference between a budget built on real money and one built on a number you'll never see.