The suspects allegedly issued fake invoices to document fictitious transactions with legitimate companies in Poland, officials said.
The invoices were used to generate artificial costs and inflate VAT deductions, allowing the group to reduce its tax liabilities illegally, according to investigators.
The detentions were carried out by officers from the National Revenue Administration (KAS) and the Central Bureau of Police Investigation (CBŚP) in coordinated operations across several provinces.
Investigators seized accounting documents, data storage devices and electronic equipment.
Those detained face charges including participation in an organized criminal group, tax crimes and the use of fraudulent invoices.
They could face up to 20 years in prison if convicted.
Interior and Administration Minister Marcin Kierwiński said that in connection with the broader investigation, more than 330 people have been charged so far and total losses to public coffers may have exceeded PLN 300 million (around EUR 70 million, USD 80 million).
(gs)
Source: TVP Info, PAP, IAR