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17.08.2026 · Johnny N.

Lump-Sum, Tax Scale or Flat Tax?

Choosing your form of taxation is one of the most important decisions when starting a business – it can change your tax by several thousand złoty a year. Here are the three main options.

FormRateBest for
Tax scale12% up to PLN 120k, 32% above; PLN 30k tax-freeLower income, high costs, joint filing with a spouse, reliefs
Flat tax19% regardless of incomeHigh income; no tax-free amount or joint filing
Lump-sum2% to 17% of revenue (depends on activity)Low business costs; tax on revenue, not profit

What to keep in mind

  • Costs – on the scale and flat tax you deduct costs; on lump-sum you don't.
  • Health contribution – calculated differently for each form and a real part of the burden.
  • Reliefs and joint filing – available only on the tax scale.

How Investya helps

We'll model the options for your situation and pick the most favourable – as part of accounting for foreigners. Starting a business? See sole proprietorship registration.

Need a hand?

Book a free consultation – we'll explain your situation and handle the formalities.

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