Lawmakers voted 231-201 in favour of the bill, with one abstention. The legislation now goes to the Senate, the upper house, for further consideration.
The measure would impose a 60-percent tax on what the government describes as extraordinary profits earned by fuel companies, following a sharp rise in fuel-sector margins linked to energy-market disruption after the outbreak of conflict in the Middle East.
The government said the tax would apply to fuel producers and importers whose revenues exceeded a benchmark level based on their average fuel-sales margins in 2025, adjusted upward by 20 percent.
Revenue from the levy is intended to offset losses resulting from the government's "Fuel Prices Down" programme, which cut value-added tax (VAT) on motor fuels to 8 percent and reduced excise duties to the minimum levels permitted under European Union rules.
Officials estimate the windfall tax will generate around PLN 4 billion (EUR 950 million, USD 1.1 billion), while the fuel-tax cuts were expected to reduce government revenue by about PLN 4.8 billion during their first three months.
The tax would apply to companies producing and importing fuel, including firms purchasing fuel from other European Union countries.
Government estimates suggest that between 20 and 30 companies would fall within its scope, including energy giant Orlen, state news agency PAP reported.
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Source: IAR, PAP