A loophole in the 2017 tax law is allowing large corporations to save millions of dollars that would have otherwise been paid to the government. What Happened: The Internal Revenue Service (IRS) attempted to rectify the issue with regulations, but the U.S. Tax Court unanimously ruled last week that the law’s explicit language provides a double benefit to some companies, even if it wasn’t Congress’ intention. Medical device maker Varian Medical Systems won a case involving over $150 million in deductions. Electronics manufacturer Kyocera and food distributor Sysco have similar cases pending, ea…