consulting and training) under the same contract for the purposes of customizing the. product, or product roll-out and implementation, the agency may be able to purchase. those services up to 20% of the value of the product and first year's maintenance.
The Social Security tax is a flat tax rate of 6.2 percent on your wage income up to $118,500 as of 2017. Any wages you earn over $118,500 aren't subject to the Social Security tax, so the figure shown in Box 4 should be no more than $7,347.00, the $118,500 maximum wage base times 6.2 percent.
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.