How to Report Crypto Taxes in Poland

Poland applies a 19% flat tax on cryptocurrency capital gains, making it one of the more straightforward European tax systems. The Polish tax authority (Krajowa Administracja Skarbowa - KAS) treats cryptocurrency as property rights subject to capital gains tax. Poland does not distinguish between short-term and long-term holdings—all gains are taxed at the same 19% rate.

Cryptocurrency capital gains are reported on Form PIT-38 (Tax on Capital Gains). This is a separate tax return from regular income (PIT-36/37). You must file PIT-38 by April 30 following the tax year if you had any crypto disposals during the year. The form requires listing all disposal transactions with acquisition date, sale date, cost, proceeds, and gain/loss.

All cryptocurrency capital gains are taxed at a flat rate of 19%, regardless of holding period or total income. This simplicity makes Polish crypto taxation relatively straightforward. The 19% rate applies to the net gain (sale proceeds minus acquisition cost and fees). There is no tax-free allowance for capital gains in Poland.

Poland uses FIFO (First In, First Out) as the mandatory cost basis method for cryptocurrency. When you sell crypto, you must use the acquisition cost of the oldest holdings first. This is legally mandated and cannot be changed to LIFO or average cost. Taxxy automatically applies FIFO calculations for PIT-38 compliance.

Trading one cryptocurrency for another (e.g., BTC for ETH) is a taxable disposal. You must calculate the gain or loss in PLN at the moment of the trade using the market value of both cryptocurrencies. This applies to all swaps, including DeFi trades on platforms like Uniswap.

Mining rewards and staking income are treated as other sources income (przychody z innych źródeł) and taxed at progressive income tax rates: 12% (up to 120,000 PLN) or 32% (above 120,000 PLN). This income is reported on Form PIT-36 or PIT-36L, NOT on PIT-38. The fair market value in PLN at the time of receipt is the taxable amount.

Cryptocurrency received for free (airdrops, forks, promotional rewards) is treated as other sources income and taxed at 12% or 32% depending on your total income. When you later sell these tokens, the fair market value at receipt becomes your cost basis for capital gains calculations on PIT-38.

Capital losses from cryptocurrency can only offset capital gains in the same tax year—they cannot offset regular income. Losses cannot be carried forward to future years. This means if you have a losing year, those losses are lost. Strategic timing of gains and losses within the same tax year is important.

Maintain detailed records for at least 5 years: transaction dates, PLN values at transaction time, exchange names, wallet addresses, transaction hashes, and acquisition costs. KAS can request full documentation during audits. Since FIFO is mandatory, you must be able to prove the order and cost of all acquisitions.

Taxxy automatically generates PIT-38 with proper FIFO cost basis calculations, categorizes capital gains vs. income for correct form placement, calculates PLN valuations using historical exchange rates from the National Bank of Poland, identifies loss optimization opportunities within the tax year, and produces XML files for electronic PIT-38 filing with KAS.