Your First Paycheck: What All Those Deductions Actually Mean

Your first paycheck is going to be smaller than you expected. Sometimes a lot smaller. The number your employer quoted you was your gross pay. What lands in your bank account is your net pay, and the gap between the two is worth understanding before you build a budget around the wrong number.

None of these deductions are random. Each one has a purpose, and understanding them takes about 10 minutes. Here is what is being taken out and why.

Social Security: a forced savings program, not a tax

Social Security is listed on your pay stub as OASDI, which stands for Old Age, Survivors, and Disability Insurance. The current employee rate is 6.2% of your wages, up to a cap. In 2026, that cap is $176,100. Once your earnings hit the cap in a given year, the deduction stops. Most new grads will not come close to hitting it, but it is worth knowing the structure.

Think of Social Security as a transfer into the retirement system, not a personal savings account. It is a pay-as-you-go program: current workers fund current retirees, and future workers will fund you. What you get back depends on your earnings history and when you claim, not what you personally put in.

The long-term solvency of Social Security is worth following as you get older. It should not change your behavior today. You do not have a choice in the matter anyway.

Your employer also pays 6.2% on your behalf, separately. That is money they are spending to employ you that never touches your pay stub. Worth knowing when you think about total compensation.

Medicare: straightforward, no cap

Medicare is 1.45% of your wages with no earnings cap. It funds the federal health insurance program that covers people 65 and older. Your employer matches this too. High earners above $200,000 pay an additional 0.9%, but that is not a first-paycheck concern.

Self-employment tax: when you pay both sides

If you work as a contractor or freelancer, the Social Security and Medicare math changes significantly. As an employee, your employer covers the matching 6.2% for Social Security and 1.45% for Medicare. You never see it on your stub. When you are self-employed, you cover both sides yourself.

That is the self-employment tax: 15.3% total. 12.4% for Social Security, 2.9% for Medicare. The IRS applies it to 92.35% of your net self-employment income, not the full amount, because it backs out the employer-equivalent half before calculating. On $80,000 of freelance income: $80,000 × 92.35% = $73,880, then × 15.3% = roughly $11,304 in self-employment tax. That is before a dollar of income tax is owed.

The IRS does let you deduct half of the self-employment tax on your return. That deduction is roughly $5,652 on an $80,000 income. But this is a deduction, not a credit, and that distinction matters. A credit reduces your tax bill dollar-for-dollar. A deduction reduces your taxable income, which then lowers your tax bill by your marginal rate. At a 22% federal bracket, a $5,652 deduction saves you about $1,243 in income tax. Not $5,652. It helps, but it does not come close to offsetting the full cost of covering both sides of FICA.

Many people accept a contract role for a higher hourly rate without accounting for any of this. A $70,000 W-2 salary and a $70,000 freelance contract are not the same number. Run the math before you decide.

Federal income tax: the big one

The federal government taxes your income at graduated rates. You do not pay the same rate on every dollar you earn. The first dollars are taxed at a lower rate, and higher dollars are taxed at a higher rate. This is what people mean when they talk about tax brackets. Getting a raise does not mean you suddenly owe more on your existing income. Only the dollars above the new threshold get taxed at the higher rate.

How much gets withheld each paycheck depends on what you put on your W-4 when you were hired. If you had unusual circumstances or got it wrong, you can update your W-4 at any time by asking HR. The amount of tax owed is the same, regardless of how much was withheld. If too much tax was withheld, you get a refund. If not enough tax was withheld, you owe money.

State and city taxes: it depends where you live

State income tax varies by location. Some states have no income tax at all: Texas, Florida, and Nevada are the most common examples. Others have a flat rate. Others use a graduated structure similar to the federal system. Whatever your state charges shows up as a separate line item on your stub.

If you live in one state and work in another, both states may want a piece of your income. This sounds worse than it is. I lived in New Jersey and commuted to New York for years. Here is how it actually worked: New York taxed the income I earned there as a non-resident. New Jersey taxed my income as a state resident. That sounds like I paid taxes twice on the same money.

In practice, New Jersey gave me a credit for taxes paid to New York on the same income. You effectively pay whichever state has the higher rate, not both rates stacked on top of each other. My total tax bill was not dramatically higher than it would have been living and working in the same state.

The filing is more complex. You file a non-resident return for the state where you work and a resident return for the state where you live. But the double-taxation fear is mostly unfounded. This was easily handled by the tax prep software.

City taxes are a separate layer and work differently. New York City charges its own income tax, currently between 3.078% and 3.876% depending on income. The key point: you only pay the city tax if you live in the city. Working in Manhattan while living in New Jersey means no NYC tax. Living in Brooklyn and working in Manhattan means you owe it. City taxes are a residency question, not a workplace question. The one exception: some city government employees owe the city tax regardless of where they live. But for most private sector workers, if you do not live there, you do not pay it.

Health insurance, HSA, and FSA: pre-tax dollars

If you enrolled in your employer's health plan, your share of the premium comes out of your paycheck before taxes are calculated. If your employer offers a Health Savings Account (HSA) or Flexible Spending Account (FSA), contributions to those also come out pre-tax and appear as separate line items.

An HSA is paired with a high-deductible health plan and the funds roll over year to year. An FSA has a use-it-or-lose-it structure and must be spent within the plan year, with some exceptions. Both reduce your taxable income.

The savings are real. At a 22% federal bracket, a $200 monthly health premium costs you about $156 in after-tax dollars because you never owe tax on the money that went toward it. It is not a huge number, but it adds up over a full year.

Your 401(k): the deduction you should be making

If your employer offers a 401(k) match and you are not contributing enough to capture the full match, you are leaving money on the table. A 50% match up to 6% of your salary means your employer will add $0.50 for every dollar you contribute, up to 6% of your pay. That is a guaranteed 50% return before the market does anything.

The contribution also comes out pre-tax, which reduces your taxable income now. On a $60,000 salary with a 6% contribution, you are putting in $3,600 per year and your taxable income drops by $3,600. At a 22% federal rate, that saves you roughly $792 in taxes that year.

Beyond the match, the argument for maxing out your 401(k) early in your career is about time. Money you put in at 25 has 40 years to compound. Money you put in at 35 has 30. The math difference at retirement is not linear. More on this in a later article.

What your pay stub actually looks like

The point of that example is not to depress you. It is to make sure you are building your budget around your net pay, not your gross salary. The $65,000 salary in this example nets to roughly $44,000 annually after taxes and benefits. That is your real starting number.