Forex glossary
Belka tax (Poland)
Scope: Poland
Belka tax is an informal name for Polish taxation of certain investment income, generally at 19%. Private financial-instrument income covered by Article 30b is reported on PIT-38; Polish deposit interest is generally taxed by the payer. The label 'Forex' does not establish how every payment is classified.
Illustrative example
How does it work in practice?
Assume a Polish resident has private income covered by Article 30b: receipts of 12,000 PLN and eligible costs of 10,000 PLN. With no deductions, tax is 380 PLN on 2,000 PLN income, rather than on total turnover.
A case to work through
Two documents, different questions
A hypothetical Polish file contains bank interest and results from private CFD trades.
- Identify the interest document showing tax withheld.
- For CFDs, collect the instrument agreement, trades and costs for separate classification.
What follows? Do not automatically apply the interest reporting route to CFDs.
Example boundary: This exercise does not determine an individual's income category or filing obligation.
Records before returns
Text description of the diagram
- Record: Check whether it concerns interest or an instrument.
- Category: Identify the income under Polish rules.
- Reporting: Choose the applicable route after classification.
A useful distinction
Belka tax (Poland) / PIT-38 (Poland)
Belka tax is an informal Polish tax label; PIT-38 is a specific Polish return.
Check your understanding
Separate interest records from trading records before assessing Polish reporting.
Show the answer and explanation
Instrument agreement and income records
These enable checking the applicable category.
Poland: records, instruments and residence
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Related terms
Sources and documentation
- Stawki i limity – PIT
Identifies distinct Polish capital-income and interest categories subject to 19% taxation.
Document read: - eli.gov.pl
- Broszura informacyjna do zeznania PIT-38 za rok podatkowy 2025
Describes PIT-38 scope and separately identified income, costs and instruments.
Document read:
The example illustrates the mechanism. Check current account conditions and instrument specifications with the provider.