Tax reform has become a hot-button issue in Congress and among taxpayers as discussion continues about whether the wealthy pay their fair share. But the issue is much deeper than a brewing controversy between the haves and have-nots. An examination of the complexities of the tax system reveals a variety of ways to reduce or eliminate federal income tax.

According to the Tax Policy Center, 43.3 percent of American households paid no federal income tax in 2013, a percentage that may sound alarming. But income tax is not the entire story. Other taxes, such as those levied on property, cigarettes, gas, liquor, Social Security, and state and local taxes, ensure that virtually no one gets off scot-free.

Even so, the significant number of Americans who pay no federal income tax raises the question: How can a taxpayer reduce federal income tax liability down to nothing?

“It depends on the type of income as well as the deductions and credits you can apply,” says Bob D. Scharin, senior tax analyst for the tax and accounting business Thomson Reuters.

Nontaxable income

“Not all income is taxable,” Scharin says. Here are a few examples.

  • Municipal bonds provide tax-free interest. Many wealthy investors will allocate a good portion of their portfolio to municipal bonds to significantly lower their federal income tax liability, says Michael Knoll, professor at University of Pennsylvania Law School and co-director of the Center for Tax Law and Policy. But there’s a trade-off: “Economists like to say you’re paying an implicit tax because you’re getting a lower return on these bonds than you would get on taxable bonds.”
  • Disability benefits could be income-tax-free if the policy premiums were paid by the individual, not the employer, says Scharin.
  • Some Social Security benefits are tax-free, or partially taxable, depending on your income, Scharin says. But on the flip side, Knoll points out, everyone who works pays into Social Security through a payroll tax deduction, although some people argue whether it is actually a tax or a forced insurance and savings program.
  • Foreign income is federally tax-exempt up to a maximum of $97,600 if you are employed by a multinational company and work abroad for an entire year, Scharin says. Even if you have to pay taxes to the foreign country where you live and work during this time, you may be able to get a credit for them on your U.S. tax return, he adds.
  • Income from long-term capital gains is not taxed as federal income, but at a lower capital gains rate. That rate can actually be zero for those in the 10 percent or 15 percent tax brackets, Scharin says. A married couple with adjusted gross income below $72,500 and single taxpayers below $36,250 might pay no tax on net capital gains.

Deductions and credits

In addition to the types of income a person receives, the use of deductions and credits can reduce or eliminate federal income taxes.

  • The standard deduction and personal exemptions alone can eliminate federal income tax owed, Knoll says. For example, a married couple filing jointly with two qualifying children can earn $27,800 and reduce their federal tax liability to zero just by applying the standard deduction of $12,200 and personal exemptions of $3,900 each. That’s not even counting any credits, he adds, such as the earned income tax credit, which could further reduce the tax bill. And, if you’re self-employed, Knoll says, you can deduct some or all of your health insurance premiums outside the standard deduction without itemizing.
  • Credits, such as the earned income credit, are usually aimed at assisting taxpayers with modest incomes, says Scharin. The credit, up to a maximum of $6,044, is available for working adults with children who fall into the lower income brackets.
  • Other credits include the American opportunity credit, which offers a maximum of $2,500 per year for qualified students; the saver’s credit for low and moderate income taxpayers who want to save for retirement; and the child and dependent care credit for expenses paid to a care provider.
  • Qualified medical expenses that exceed 10 percent of adjusted gross income can be deducted if the taxpayer itemizes. In a year that might include expensive capital improvements to a home to accommodate an illness or injury, for example, the tax savings could be significant, Scharin says. (The deduction is 7.5 percent for taxpayers over the age of 65.)
  • There are other ways the ultra-wealthy can reduce or avoid federal income taxes, including the use of certain trusts that will pay the income tax and pass on the assets to future generations, Knoll says. Other wealthy individuals who own a business may have a significant gross income, but because of business expenses, will reduce their taxable income to close to nothing.

Of course, the possibility of reducing taxes to zero has always been a concern for revenue raisers. That’s why the alternative minimum tax, or AMT, was enacted in 1969 as a way to ensure that in most cases at least some tax is paid. A portion of income is excluded before the AMT kicks in, and the American Taxpayer Relief Act enacted in 2012 now indexes those amounts to inflation to protect lower- and middle-income workers from this parallel tax.

Tax reform and fairness will likely always be a debatable issue because of the nature of our progressive system, in which the amount of tax owed increases according to the taxable amount, says Knoll.

In general, Scharin says, those who are making the most drastic reductions to their federal income tax liability are taking advantage of deductions and a variety of credits aimed primarily at the elderly and the poor. At the other end of the spectrum, the wealthy are giving away assets, thereby reducing their wealth.

“Nothing is simple in the tax code,” says Scharin. “Often in the name of fairness, the tax code gets more complex.”