Welcome to kloPIT
Free, open-source PIT-38 tax calculator for Polish investors. Calculate capital gains tax from foreign brokers — all data stays in your browser.
From Ukrainian "клопіт" and Polish "kłopot" (hassle, trouble) — because filing taxes shouldn't be one.
Import CSV
Upload broker statements or enter trades manually.
FIFO Calculation
Automatic FIFO matching with NBP exchange rates.
Dashboard
Visual breakdown of gains, losses, and dividends.
PIT-38 Form
Ready-to-file tax form values with field references.
Explore source on GitHub
SvelteKit + TypeScript app with framework-agnostic tax logic in core modules and a broker-parser plugin architecture.
Security & data policy
Data stays local in your browser (IndexedDB). The only external request is NBP exchange rates for currency conversion.
Get started: Go to Data to import your broker statement or add trades manually.