What does is mean when it says are you FICA or FIT withheld?

When a paycheck or financial form asks if you are FICA or FIT withheld, it's referring to two different types of tax withholdings. FICA stands for the Federal Insurance Contributions Act, which includes Social Security and Medicare taxes. FIT refers to Federal Income Tax withholding, which is the amount deducted from your paycheck for federal income taxes. Understanding these withholdings helps you know how much of your earnings goes to taxes and what your take-home pay will be.