A total of 880,000 people worked in the tax-evading, unregistered segment of Poland’s economy at least once last year, according to a report released on Wednesday.
The figure means 5.4 percent of the Polish labour force at least once worked in the off-the-books segment in 2017, the Central Statistical Office said.
The office said unregistered work was most common in gardening and agriculture.
In a report last December, the United Nations Global Compact Network Poland said that in 2017, the tax-evading segment had shrunk by 1 percent.
The off-the-books segment represented 11 percent of Poland’s gross domestic product, the United Nations Global Compact Network, which is a UN initiative that aims to encourage businesses worldwide to adopt sustainable and socially responsible policies, said at the time.
Thanks to reducing the "shadow economy," the government had boosted its annual revenue by about PLN 20 billion (EUR 4.76 billion, USD 5.58 billion), the study said.