It’s no surprise that the United States remains low-ranked on the newly released International Tax Competiveness Index from the Tax Foundation: It places 32nd overall out of 34 industrialized nations. What’s even worse is that the United States ranks last in the area of corporate taxes and is one of only three nations that haven’t cut the corporate tax rate since 2000 — showing that other countries are recognizing the importance of reforming business taxes while the U.S. falls further behind.

Besting the United States are a host of countries with economies both large and small: Estonia tops the list, followed by New Zealand, Switzerland and Sweden.

Ireland, the United Kingdom and South Korea all are in the top 20 overall. The entire report is available at http://bit.ly/1KLrAbn.

This year’s report, released last week, comes a year after President Barack Obama vowed to stop U.S. companies from moving their headquarters overseas in what are called corporate inversion deals, which can save companies millions of dollars by putting them under the jurisdiction of other countries’ tax laws rather than the American ones. The obvious solution if companies are acting in their best interests by doing this isn’t to berate them; it’s to change the tax code so that they won’t need to look for a way around it.

The U.S. tax code is complicated, uncompetitive and almost universally disliked. Yet enacting any real reform has remained elusive as the parties have bickered with each other and within their own ranks. And every tax loophole has a powerful champion who benefits from it, meaning there’s also pressure from outside interest groups.

Sen. Rob Portman, the Republican from Ohio who sits on the Senate budget and finance committees, has been a consistent champion of corporate tax reform. It would be in the best interest of Americans for others to join him in a bipartisan effort to make America more competitive, protect investment and stop good jobs from leaving the country.