That compares with the 31% rate paid by Gingrich and the 14% paid by Romney, both of whom have much higher incomes.
The president seeks to raise $1.5 trillion in the next 10 years from wealthy Americans. Yet most of his proposals were also in last year's budget and went nowhere.
Facebook's IPO indicates its founder will pay a hefty tax bill for exercising stock options. That income is taxed at the 35% rate, since entrepreneurs don't get the same treatment as investors.
The GOP candidate's 13.9% rate draws attention to a tax break for investment execs that taxes profits at the capital gains rate of 15% rather than the regular rate of up to 35%.
Romney favors the orthodox GOP approach of lowering tax rates and overhauling the corporate tax system. Gingrich's plan is more radical and much more difficult to achieve.
A California campaign comparing reality star's tax bill with that of a middle-class earner is misleading and fails to account for federal taxes.
GOP candidate's proposal would cut taxes 62% for millionaires and put a major hole in the federal budget, analysis finds. Gingrich disputes deficit projection.
VIDEO ON MSN MONEY
Copyright © 2014 Microsoft. All rights reserved.
Fundamental company data and historical chart data provided by Morningstar Inc. Real-time index quotes and delayed quotes supplied by Morningstar Inc. Quotes delayed by up to 15 minutes, except where indicated otherwise. Fund summary, fund performance and dividend data provided by Morningstar Inc. Analyst recommendations provided by Zacks Investment Research. StockScouter data provided by Verus Analytics. IPO data provided by Hoover's Inc. Index membership data provided by Morningstar Inc.
The Market Dispatches column has been discontinued. Here's where to find the latest stock and business news on MSN Money, and the latest from market writer Charley Blaine.
MONEY & POLITICS
Breaking up big banks is an untested solution to the too big to fail problem that attempts to isolate and dismantle large, troubled institutions while protecting the rest of the economy.
If you're thinking about buying a car and the Carfax report comes back clean, you're good to go, right? Um, maybe not. Here are four other ways you can avoid buying a clunker.
Six weeks later, most Americans have forgotten about the 2014 tax season -- except those who didn't file by the April 15 deadline.
MUST-SEE ON MSN
- Video: Easy DIY smoked meats at home
A charcuterie master shares his process for cold-smoking meat at home.
- Jetpacks about to go mainstream
- Weird things covered by home insurance
- Bing: 70 percent of adults report 'digital eye strain'