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.
The Social Security tax rate is assessed on all types of income earned by an employee including salaries, wages, and bonuses. However, there is an income limit to which the tax rate is applied. For 2017, the Social Security tax is taken from income up to an annual limit of $127,200. Any amount earned above $127,200 is Social Security tax-free.