Polish PIT-38 tax calculator for Interactive Brokers — converts trades & dividends to PLN, calculates FIFO capital gains, and generates ready-to-file PIT-38 values

Polish PIT-38 tax calculator for foreign brokerage income. Auto-imports from activity statements, fetches NBP exchange rates, applies FIFO cost basis, and fills PIT-38 & PIT/ZG fields. Runs entirely in your browser - no server, no accounts, no data leaves your device.