Scholz was last week nonetheless reported not to be convinced by a controversial EU proposal to slap a European tax on US tech giants amid worries it may turn out to be both ineffective and protectionist.

France for a year has rallied EU partners to draw up the tax which Paris says is necessary to ensure tech giants pay their way.

Scholz explained he had launched an initiative designed to help states react to so-called fiscal dumping in support of embryonic OECD plans designed to fight tax transparency and cross-border tax evasion.

"We require coordinated mechanisms which prevent the displacement of revenues to tax havens," said Scholz.

The European Commission, the EU's executive arm, has proposed a European tax on "big tech" with susbstantial digital revenue in Europe, based on overall revenue in Europe and not just profits.

But lead opponent Ireland says a growing number of countries are grumbling about hidden problems with the tax, including that it could inadvertently snag European companies.

There is also concern as to what consequences might flow from such a plan at a time against the backdrop of a potential full-blown EU-US trade war.

Berlin worries that cranking up the ante on trade with the United States by launching what Washington could see as an attack on Silicon Valley's corporate giants may threaten German auto exports.

Germany has already shown some opposition to a French plan to tax tech giants three percent of certain forms of revenue including advertising and sale of personal data.

French Finance Minister Bruno Le Maire said Thursday he will in the coming days urge EU members to commit to backing a tax.

A March proposal by the Commission includes introducing a tax as a bridge measure until such time as the OECD can roll out a measure which can be applied globally. (AFP)