PIT-8C Tax Declaration Poland 2026 — How to File, Brokers, Belka

⚡ Read this before you open your next trade

**PIT-8C** = Polish tax form for capital gains from securities (stocks, ETFs, bonds, crypto). Filed annually with PIT-38. **Who must file PIT-8C 2026**: 1) **Anyone with broker account in Poland**: XTB, mBank, BOSSA, Pekao, etc. 2) **Realized profit/loss in tax year**: 2025 transactions for 2026 filing. 3) **Polish tax residents**: even if trading abroad. 4) **Foreigners with Polish-source income**: applicable. **What PIT-8C contains**: 1) **Income from sale of securities**: total revenue. 2) **Costs of acquisition**: original purchase prices + commissions. 3) **Profit/Loss**: difference between income and costs. 4) **Withholding tax already paid**: if any. 5) **Specific categories**: by instrument type. **Belka tax 2026**: 1) **Rate**: 19% on capital gains. 2) **Filed via PIT-38**: separate from regular income. 3) **Deadline**: April 30 following year (e.g., April 30, 2026 for 2025 income). 4) **Tax year**: calendar year (Jan 1 - Dec 31). 5) **Loss carry-forward**: 5 years. **Polish brokers PIT-8C provision**: 1) **XTB**: provides PIT-8C automatically (free, electronic). 2) **mBank Brokerage**: provides PIT-8C. 3) **BOSSA**: provides PIT-8C. 4) **Pekao Maklerski**: provides PIT-8C. 5) **eMakler (mBank)**: provides PIT-8C. 6) **All Polish brokers required by law to provide**. **How to file PIT-38 with PIT-8C 2026**: 1) **Step 1**: Wait for PIT-8C from broker (typically January-February). 2) **Step 2**: Verify amounts match your records. 3) **Step 3**: Open ePIT (Twój e-PIT) on podatki.gov.pl. 4) **Step 4**: PIT-38 should be auto-filled with PIT-8C data. 5) **Step 5**: Verify all data. 6) **Step 6**: Add any additional income (foreign brokers, etc.). 7) **Step 7**: Calculate tax (19% × profits). 8) **Step 8**: Submit electronically. 9) **Step 9**: Pay tax owed by April 30. **Foreign broker income**: 1) **Vantage, IBKR, Saxo**: don't provide Polish PIT-8C. 2) **You must declare manually**: in PIT-38. 3) **Required**: all transaction history (statements). 4) **Currency conversion**: use NBP exchange rate at transaction date. 5) **Documentation**: keep all statements for 5 years. **Loss handling**: 1) **Realized losses offset profits**: in same year. 2) **Carry-forward losses**: 5 years (use against future profits). 3) **Cannot offset against regular income**: capital gains separate. 4) **Cannot offset against IKE income**: IKE separate. **Foreign withholding tax**: 1) **US dividends**: 15% withholding (US-Poland treaty). 2) **Polish tax additional**: 4% top-up to reach 19% Belka total. 3) **Form W-8BEN**: required for proper US tax treatment. 4) **Other countries**: similar treaty rules. **Crypto tax**: 1) **PIT-38 also for crypto**: same form. 2) **All crypto exchanges**: must report (foreign exchanges = your responsibility). 3) **DeFi**: complex, usually classified as crypto trading. 4) **NFT trades**: capital gains. 5) **19% Belka**: same rate. **IKE/IKZE tax handling**: 1) **IKE**: 0% tax on profits (if held until 60). 2) **IKZE**: tax deduction now, 10% flat at retirement. 3) **No PIT-8C required**: for IKE/IKZE. 4) **Brokers handle**: tax shelter automatically. 5) **Significant savings**: over decades. **Common PIT-8C/PIT-38 mistakes**: 1) **Missing foreign broker income**: must declare manually. 2) **Wrong currency conversion**: use NBP rate at transaction date. 3) **Not offsetting losses**: missed savings. 4) **Filing late**: penalties apply. 5) **Mixing IKE with regular income**: separate forms. **Useful PIT-38 deductions**: 1) **Brokerage commissions**: included in cost basis. 2) **Currency conversion fees**: included. 3) **Trading platform fees**: included. 4) **Research/data fees**: NOT deductible. 5) **Internet/computer costs**: NOT deductible (trading not business). **PIT-38 structure**: 1) **Section A**: personal data. 2) **Section B**: income from PIT-8C. 3) **Section C**: foreign source income. 4) **Section D**: total income. 5) **Section E**: tax due (19%). 6) **Section F**: payments and signatures. **Penalties for late/missing filing**: 1) **Penalty interest**: 8.5% annual on owed amount. 2) **Fine**: up to 720x daily wage (~5,000 PLN). 3) **Criminal cases**: extreme cases of evasion. 4) **Always file**: even if zero income or loss only. **Tax tips for Polish traders**: 1) **Use IKE/IKZE max**: 0% tax. 2) **Track all foreign trades**: required reporting. 3) **Use loss harvesting**: realize losses to offset gains. 4) **Hold ETFs long-term**: no special tax benefit but compounds. 5) **Document everything**: 5-year retention. **Foreign exchange rates for tax**: 1) **NBP daily rate**: official source. 2) **Use mid rate**: at transaction date. 3) **For each transaction**: separate calculation. 4) **Tools**: NBP API, manual lookup. 5) **Apps**: some tax software handles automatically. **Recommended Polish trader tax software 2026**: 1) **Twój e-PIT**: government, free. 2) **Subiektariusz**: paid, comprehensive. 3) **PITax.pl**: online, paid. 4) **DIY**: Excel + government forms. **For Vantage and foreign broker traders**: 1) **Download all statements**: monthly during year. 2) **Convert to PLN**: at transaction date NBP rate. 3) **Calculate**: cost basis, sales, profit/loss. 4) **Add to PIT-38**: foreign income section. 5) **Pay 19% Belka**: on net profit. **Take Profit AI signals + tax**: 1) **AI signals don't affect tax**: just trading. 2) **Better profitability**: more tax owed (good problem). 3) **Track wins/losses**: same as manual trading. 4) **Use IKE for sheltered active trading**: if possible. 5) **Document Vantage trades**: for tax filing. **Common questions**: 1) **"Can I file zero PIT-8C?"** YES if no realized transactions. 2) **"What if I only had losses?"** Still file PIT-38 to carry forward losses. 3) **"What about IKE income?"** No PIT-8C needed for IKE. 4) **"Foreign brokers?"** You declare manually in PIT-38. 5) **"Crypto exchanges?"** Same as stocks, declare in PIT-38. **Tax planning strategies 2026**: 1) **Maximize IKE/IKZE**: tax shelters. 2) **Loss harvesting in December**: realize losses to offset profits. 3) **Hold long-term where possible**: avoid frequent realizations. 4) **Plan capital gains realization**: spread across years. 5) **Use foreign brokers carefully**: requires manual reporting. **2026 changes**: 1) **No major changes**: 19% Belka same. 2) **Crypto rules clarified**: more enforcement. 3) **Foreign broker reporting**: stricter compliance expected. 4) **DAC8 directive**: EU-wide crypto reporting from 2026. **Bottom line**: PIT-8C = Polish capital gains tax form. Provided automatically by Polish brokers (XTB, mBank, BOSSA). Belka 19% rate. File PIT-38 by April 30 annually. For foreign brokers ([Vantage](https://vigco.co/la-com-inv/CE3HlGvG), IBKR): manual reporting required. Use IKE/IKZE for tax shelter. This 2026 guide covers: complete PIT-8C process, brokers, foreign income.

Kacper Mruk6 min readUpdated: April 17, 2026