Italy claims over €200 million in unpaid tax from Google

The technology giant is accused of failing to declare €100 million in income and pay €200 million in royalty taxes, the source said.

Corporate income tax in Italy currently stands at 27.50 percent, putting the total amount due at €227.5 million.

"Google complies with the tax laws in every country where we operate. We continue to work with the relevant authorities," a spokesperson for the company in Milan said.

The claim comes against a backdrop of mounting controversy over the tax arrangements of multinational groups who use cross-border corporate structures to reduce their tax bills, sometimes with the help of potentially illegal 'sweetheart' deals.

Google Italia is part of the company's European operation which is headquartered in Ireland, a country with one of the lowest levels of corporation tax in the European Union.

Italy's move follows the striking of a controversial deal in Britain last week which saw the Inteet mammoth agree to fork out over €172 million in back taxes - an amount scoffed at by the opposition as an effective tax rate of three percent.

It also comes a day after over 30 OECD countries signed an agreement to share information about multinationals in a push to boost transparency following public anger over large corporations playing the system to lower their tax bills.

The demand comes a month after another US tech giant, Apple, agreed to pay €318 million in tax owed to Italy’s inland revenue after the company was investigated for suspected fraud.