Silicon Valley technology firms that are lobbying Congress to slash taxes on money they bring home from abroad, arguing that doing so would help them create millions of jobs, already send more than half that money back to the United States without paying taxes, according to a Senate investigation. The corporate tax code permits Google, Cisco, Apple, Adobe Systems, Oracle and other U.S. multinational corporations surveyed to invest nearly $250 billion in the United States without paying the 35 percent corporate tax rate that applies to repatriated foreign earnings, according to the report by the Senate's Permanent Subcommittee on Investigations. The corporations, which are not allowed to invest the money in their own companies, can escape the 35 percent tax if they invest in other domestic assets, such as stocks, bonds and bank deposits. Silicon Valley's technology giants have banded together with pharmaceutical companies and other multinationals in the Win America Coalition in an attempt to get Congress to cut their tax rate from 35 percent to just over 5 percent on overseas earnings they bring home. The survey data showed that Adobe, Apple, Broadcom, Cisco and Google have invested 76 to 100 percent of their foreign earnings in U.S. stocks, bonds, bank deposits and other domestic assets, a greater share than the other companies surveyed.