§ THE PLUG · 3 MIN READ
The First Paycheck Paperwork Nobody Explains
A young person's first job comes with four forms that decide how much money they keep and whether they are building anything. What you will learn: what each one does, in plain words.
By Culture
THE SHORT VERSION
The forms at a first job that matter most are the W-4, which sets how much tax is withheld, direct deposit setup, benefits enrolment including any retirement match, and the I-9 for work authorisation. An employer retirement match is effectively free money and is the single most valuable item most new workers decline by default.
What you will learn: what each form at a new job actually does, which one is free money, and what to check on the first pay stub.
Nobody teaches this, so it gets learned the expensive way, usually in April.
This decides how much income tax comes out of each cheque. It is not a tax bill, it is a guess made in advance, and the goal is to get the guess close.
Too little withheld and you owe money at tax time, which is how a nineteen-year-old ends up with a bill they cannot pay. Too much withheld and you have lent the government money interest free all year, which people call a refund and is really their own money coming back.
The form asks about other jobs and dependents. If you work two jobs, say so on the form, because that is the most common reason a young worker is under-withheld. You can change your W-4 any time. It is not permanent.
If an employer offers a retirement plan with a match, contributing at least enough to get the full match is the single best financial decision available to most workers, and enormous numbers of people skip it because the paperwork arrived in week one alongside everything else.
A typical match is something like fifty cents for every dollar you put in, up to a percentage of your pay. That is an immediate return nothing else offers. Declining it is choosing to be paid less.
Start at whatever gets the full match, even if it feels like a lot at that age. Especially at that age, because the money has forty years to work.
“The match is not a benefit. It is part of your pay, and you only get it if you ask for it.”
I-9. Work authorisation. Bring original documents, not copies. The list of acceptable ones is on the form.
Direct deposit. Have your account and routing numbers ready. If you do not have an account yet, open one before the first payday, because check cashing services take a cut of every cheque forever. A credit union is usually the cheapest door.
Health insurance. Read the enrolment deadline carefully. Miss it and you generally wait a year.
Actually read it, once, line by line.
Check the hours are right. Check the rate is what you were told. Errors happen and they are far easier to fix in week one than in month six.
And if the plan is a trade rather than a desk, the apprenticeship pays from day one and the same paperwork applies.
- What does the W-4 form do?
- It tells your employer how much income tax to withhold from each paycheck. Withholding too little leaves you owing money at tax time; withholding too much means you have lent the government money interest free. You can update it at any time.
- What is a 401k match and should I take it?
- It is money an employer contributes when you contribute, commonly around fifty cents per dollar up to a percentage of your pay. Contributing at least enough to capture the full match is effectively free money, and declining it means being paid less than the job offers.
- What should I check on my first pay stub?
- That the hours and pay rate match what you agreed, and what each deduction is: federal and state tax, FICA for Social Security and Medicare at roughly 7.65 percent, and any insurance or retirement contributions. Errors are far easier to correct in the first week.
- Why do I need a bank account for a first job?
- Because check cashing services take a percentage of every paycheck indefinitely. Opening an account before the first payday, often most cheaply at a credit union, keeps that money.
