Google's European headquarters in Dublin, Ireland | Peter Muhly/AFP via Getty Images Spanish tax inspectors raid Google Google’s tax affairs have come under sustained attack across Europe this year.

Spanish tax authorities raided Google's Madrid offices, adding to the regulatory and fiscal woes of the internet giant in Europe.

Newspaper El País reported the govenment is looking into Google's taxes.

"We comply with the tax law in Spain, as in every other country in which we operate," said Mark Jansen, a Google spokesman. "We are cooperating fully with the authorities in Madrid to answer their questions, as always."

Spain's Agencia Tributaria did not respond to multiple requests for comment.

Google's European tax affairs have come under sustained attack this year. French tax authorities conducted a high-profile raid against the internet giant last month, meanwhile Italian regulators are also looking closely at Google's tax bill. Those investigations follow a January settlement with the U.K., where the company forked over £130 million in back taxes and promised to pay a higher rate going forward.

At the heart of the probes is Google's European corporate structure. The company books most of the revenues generated by its lucrative online advertising business in Europe at its European headquarters in Dublin. Politicians and tax authorities have regularly said they would like to see Google declare more business and taxes outside Ireland.

This isn't Google's first problem with Spanish tax authorities. El País reported Google agreed to pay an extra €1.9 million in extra taxes for the years 2008-2009.

Authors: