If you are needing to calculate the deductions on your paycheck the only real way to do that is to know all that you can about what kinds of things are deducted from thatr paycheck.
A paycheck is a document issued to an employee from an employer paying them for services rendered. Basically a paycheck is paying you for the work you did for them. One thing that you need to know if that a paycheck is never made out to you in the total that you made. Before your paycheck is ever even issued to you your employer is required by the United States to take a certain amount out of your paycheck.
The first deduction that is made is for Social Security. Social Security in the United Sates is what you retirement money will be paid out of. Once you reach a certain age you will be able to use that money to live instead of working. This deduction is generally quite small but will add up over time making it so you have quite a bit of money paid in when you retire.
Another deduction is for Medicare. Even i you do not yet qualify for Medicare, someday you will. Medicare helps to pay for medication and treatment of the elderly and or low income families. Regardless of whether you have your own insurance currently you will still pay into Medicare with each check that you get. This is also a very minimal amount.
The last and most significant deduction taken out of each paycheck is for you income tax. Every year you have to file taxes with the Internal Revenue Service and pay money on what taxes you still owe or get money back because you have paid too much in. When you get a job you can tell them how many deductions you want taken out and paid into income tax with each check. The more you pay in the less you will have to pay out at the end of the year and you might even get a refund.
Those are the three main deductions taken out of each paycheck. You can find how much is being taken out of each of your checks by contacting the IRS or your employer.