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.
How much of your Social Security benefits will be taxed depends on just how high your combined income is. Individual filers. If you file a federal tax return as an individual and your combined income is between $25,000 and $34,000, you have to pay income tax on up to 50% of your Social Security benefits.