Polish Tax Authorities Clarify Cryptocurrency Regulations Amid Market Growth

The Polish tax authorities have been releasing interpretations regarding cryptocurrency transactions in early 2026. As the market grows and becomes more complex, investors are facing increasing demands on tax authorities to clarify regulations.

According to the KIS (National Tax Information), when calculating exchange rates for cryptocurrency pairs that cannot be directly converted at the central bank's rate, they adhere to an average NBP exchange rate from the business day preceding the transaction. If there is no NBP rate for a given pair, investors can refer to stock exchange quotes or aggregators like CoinMarketCap, provided that the same logic is maintained.

The tax authorities have also clarified that compensation after the collapse of Mt.Gox is tax-free. A person who lost funds on the Japanese exchange over a decade ago recovered them as part of a court rehabilitation plan, partially in euros and partially in cryptocurrencies. The KIS recognized this benefit as having a compensatory nature, exempt from income tax.