Google Inc. cut its taxes by $3.1 billion in the last three years using a technique that moves most of its foreign profits through Ireland and the Netherlands to Bermuda.

Google’s income shifting — involving strategies known to lawyers as the “Double Irish” and the “Dutch Sandwich” — helped reduce its overseas tax rate to 2.4 percent, the lowest of the top five U.S. technology companies by market capitalization, according to regulatory filings in six countries.

“It’s remarkable that Google’s effective rate is that low,” said Martin A. Sullivan, a tax economist who formerly worked for the U.S. Treasury Department. “We know this company operates throughout the world mostly in high-tax countries where the average corporate rate is well over 20 percent.”

The U.S. corporate income-tax rate is 35 percent. In the U.K., Google’s second-biggest market by revenue, it’s 28 percent.

Google, the owner of the world’s most popular search engine, uses a strategy that has gained favor among such companies as Facebook Inc. and Microsoft Corp. The method takes advantage of Irish tax law to legally shuttle profits into and out of subsidiaries there, largely escaping the country’s 12.5 percent income tax.

The earnings wind up in island havens that levy no corporate income taxes at all. Companies that use the Double Irish arrangement avoid taxes at home and abroad as the U.S. government struggles to close a projected $1.4 trillion budget gap and European Union countries face a collective projected deficit of 868 billion euros.

The high corporate tax rate in the U.S. motivates companies to move activities and related income to lower-tax countries, said Irving H. Plotkin, a senior managing director at PricewaterhouseCoopers LLP’s national tax practice in Boston. He delivered a presentation in Washington, D.C. this year titled “Transfer Pricing is Not a Four Letter Word.”

“A company’s obligation to its shareholders is to try to minimize its taxes and all costs, but to do so legally,” Plotkin said in an interview.

Administration Concerned

While the administration “remains concerned” about potential abuses, officials decided “to defer consideration of how to reform those rules until they can be studied more broadly,” said Sandra Salstrom, a Treasury spokeswoman. The White House still proposes to tax excessive profits of offshore subsidiaries as a curb on income shifting, she said.

Read the article. There are days I feel like I have “SUCKER” stamped on my forehead.