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.
How the Social Security payroll tax works now. The Social Security payroll tax rate is currently 6.2%, although it's not quite that simple. First of all, not all wages are subject to Social Security tax. As of 2016, only the first $118,500 is used to calculate Social Security tax -- anything above that amount is ignored. In other words, a worker who earns $118,500 per year pays the same Social Security tax as a worker who earns $1,000,000.