Examples of Unethical Research. Whichever ethical requirement may be chosen, the history of human research offers grim examples of its violation. During World War II, German researchers performed a large number of experiments in concentration camps and elsewhere.
First, lower income earners pay no federal income taxes on Social Security benefits, so taxation is not an issue for them. However, once a relatively low threshold level of taxable income is surpassed, somewhere between 50 to 85 percent of benefits are subject to taxation.
You may have to pay taxes on some of your Social Security benefits, but this generally only happens if you have significant taxable income in addition to Social Security. Depending on your income, you could have to pay your federal income tax rate on up to 85% of your Social Security benefits. Here's a rundown of the Social Security tax rules, applicable income limits, and a calculator that can help you determine how much of your Social Security benefits may be taxable.