Learn › Tax basics

In short: Understand gross vs. net, keep receipts through the year and file a tax return – it often brings a refund. For complex cases, professional advice pays off.

Tax basics – the essentials, explained simply

Taxes seem complicated, but a few fundamentals take you a long way – and often get money back.

  • Understand gross vs. net: tax and contributions come off your gross pay.
  • A tax return is often a chance for a refund, not just a chore.
  • Know what's deductible (e.g. work-related costs) and keep receipts throughout the year.
  • For complex cases (self-employment, property), professional help pays off.

What matters

Many leave money on the table because they see the tax return as a duty and a punishment – yet it surprisingly often leads to a refund. Commuting allowances, work tools or home-office costs noticeably cut your tax if you collect receipts through the year (one folder or a phone photo album is enough). The gross/net difference matters: when negotiating salary, what counts is what lands net. When it gets complex – self-employment, renting, inheritance – professional help often saves more than it costs.

ExampleCommuting: 20 km × 230 days × €0.30 gives about €1,380 in deductible costs that cut your tax.
Keep net pay and reserves in view with Kontoo. For your specific case: a tax office or adviser.

Checklist

  • Collect receipts all year (folder or photos)
  • Check work-related costs and allowances
  • Mind the tax-return deadlines
  • Get advice for complex cases

Common myths

Myth: A tax return gets me nothing.

Reality: On average refunds run into four figures – it is often worth it.

Myth: More gross is always much more net.

Reality: Contributions rise too – what counts is what lands net.

Frequently asked questions

Is filing a tax return worth it?

For many, yes: refunds are often substantial. Work-related costs and allowances reduce the tax you owe.

What's the difference between gross and net?

Gross is your pay before deductions; net is what's left after tax and contributions and actually reaches your account.

Related lessons

Grow incomeSide income

All lessons · Kontoo does the math and explains – this is general education, not tax, legal or financial advice.

Your data stays with you. Full stop.

Kontoo collects, sees and stores none of your data. No account, no cloud, no trackers, no ads.

No accountNo cloudNo trackingNo ads