"That means that tax morale has improved thanks to tax cuts and a crackdown on tax evasion, while the number of corporate tax avoiders has declined significantly," Varga said.

"The biggest winners are companies doing an honest business," he added.

The latest VAT gap report prepared for the European Commission shows VAT gaps forecast for 2020 of 15.6% in Czechia, 10% in Poland and 17.1% in Slovakia.