In this module we’re going to talk about something that affects every single person who earns a paycheck: income taxes and take-home pay.

Most people get their first job, look at their paycheck, and immediately think something went wrong. You were told you’d be making fifty thousand dollars a year. You do the math—that should be about 4200 dollars a month. But when you look at your bank deposit, it’s closer to 3200 dollars. Where did the rest go?

The answer is taxes. And not just one tax—several of them, taken out before you ever see the money. Federal income tax, state income tax in most states, Social Security, Medicare. And for a lot of people, there are also pre-tax deductions for things like health insurance and retirement contributions that reduce the number even further.

Here’s the problem. Most people never learn how any of this works. They don’t understand their pay stub. They don’t understand what a tax bracket is. They make major life decisions—where to live, how much to save, what job to take—without understanding the single biggest factor that determines how much of their money they actually get to keep.

This module is going to fix that. We’re going to walk through how income taxes actually work, how to read a pay stub, why the state you live in matters more than most people realize, and how to think about every financial decision in terms of after-tax dollars—which is a concept that comes up again and again throughout this course.

Your Paycheck — Where the Money Actually Goes

Let’s start with the basics. When your employer tells you your salary, that number is your gross pay. It’s the total amount before anything is taken out. The money that actually hits your bank account—after taxes and deductions—is your net pay, or your take-home pay. The gap between those two numbers is often enormous, and understanding what fills that gap is one of the most important things you can learn about money.

There are four main categories of deductions that come out of your paycheck before you see it.

The first is federal income tax. This is the big one. It’s calculated based on how much you earn and which tax bracket you fall into.

The second is FICA taxes—Social Security and Medicare. Social Security tax just over 6% of your earnings up to a cap that adjusts each year. Medicare tax is about 1.5% on all earnings with no cap. Combined, that’s over 7.5% right off the top of every paycheck.

The third is state and local income tax. This varies enormously depending on where you live. Some states—like Florida, Texas, and Nevada—have no state income tax at all. Others—like California and New York—can take an additional 10% or more on top of your federal taxes.

And the fourth category is pre-tax deductions. These include things like your 401(k) retirement contributions and your share of health insurance premiums. These come out of your paycheck before income taxes are calculated, which actually lowers your taxable income. This is a good thing—it’s one of the most powerful and most underused tools available to you.

When you look at a pay stub, you should see all of this broken out line by line: gross pay at the top, each deduction listed separately, and net pay at the bottom. Every dollar listed on there is either going to the government, going to your benefits, or going to you. You should know exactly how that split works.

How Tax Brackets Actually Work — the Biggest Misconception in Personal Finance

Now let’s talk about the single most misunderstood concept in personal finance: tax brackets.

The United States uses a progressive tax system. That means the tax rate increases as your income increases—but here’s the critical part that a lot of people miss: the higher rate only applies to the income within that bracket, not to all of your income. Let me say that again because it’s that important. When you move into a higher tax bracket, only the dollars above the threshold are taxed at the higher rate. Every dollar below that threshold is still taxed at the same lower rate it was before.

Let me walk you through this with an example. Let’s say you’re a single filer earning 75 thousand dollars a year. First, you get the standard deduction—which for 2025 is 15 thousand dollars for a single filer. That brings your taxable income down to 60 thousand dollars. People hear “sixty thousand dollars”, look at the tax bracket table and think, “I’m in the twenty-two percent bracket, so I owe twenty-two percent of sixty thousand—that’s 13,200 dollars.” That is not how it works.

Here’s what actually happens. The first 11,925 dollars is taxed at 10%. That’s about 1,200 dollars. The next chunk—from 11,926 to 48,475—is taxed at 12%. That’s about 4,400 dollars. And only the remaining 11,525 dollars—is taxed at 22%. That’s about 2,500 dollars.

So, your total amount in taxes was around 8,100 dollars and not the 13,200 dollars you feared. Your effective tax rate—the rate you actually paid on your entire income—is about 13.5%-not 22%.

So when someone says “I don’t want a raise because it’ll push me into a higher bracket,” they are fundamentally misunderstanding the system. If you get a 5,000 dollar raise, only those additional 5,000 dollars are taxed at the higher rate. You will always take home more money by earning more money. Always.

The Standard Deduction — and Why It Matters

I just mentioned the standard deduction, and it’s worth spending a moment on because it’s one of the most impactful numbers in the tax code for everyday people.

The standard deduction is an amount of income you earn that is not taxed at all. For 2025, it’s 15 thousand for single filers and 30 thousand for married couples filing jointly. The Tax Cuts and Jobs Act of 2017 nearly doubled the standard deduction, which was a significant change. Before that law, it was much lower, and more people itemized their deductions. Today, roughly ninety percent of taxpayers take the standard deduction because it’s higher than what they could claim by itemizing.

What does itemizing mean? It means instead of taking the standard flat amount, you list out specific deductible expenses—mortgage interest, charitable donations, state and local taxes up to the 10,000 dollar SALT cap—and add them up. If those items total more than the standard deduction, you itemize. If they don’t, you take the standard deduction. For most people, the standard deduction is the better deal.

We talked about this in the home-buying module. A lot of people buy a home partly because they think the mortgage interest deduction will save them a fortune on taxes. But after the 2017 changes, for the vast majority of homeowners, their itemized deductions don’t even exceed the standard deduction. The tax savings from homeownership are largely a myth for most people.

Where you Live Matters — the State Tax Difference

One of the most underappreciated factors in your take-home pay is which state you live in. And this isn’t a small difference—it can be worth thousands of dollars every single year.

Let me give you a concrete example. Let’s take two people—Freddy and Erika. They work at the same company, in the same role, earning the same salary: 85 thousand dollars a year. Freddy works from the company’s office in Miami, Florida. Erika works from the company’s office in New York City.

Florida has no state income tax. Zero. Erika, on the other hand, pays New York State income tax and New York City income tax on top of her federal taxes.

Let’s walk through the math. Both Erika and Freddy pay the same federal income tax—roughly 9,100 dollars after the standard deduction. They both pay the same FICA taxes—about 6,500. So far, identical.

But then the paths diverge. Freddy’s state tax bill: zero. Erika’s New York State income tax: roughly 4,200 dollars. Her New York City income tax: roughly 2,500 dollars. That’s an additional 6,700 dollars a year in taxes that Freddy simply does not pay.

Same salary. Same job. Freddy takes home roughly sixty-seven hundred dollars more per year. Over a decade, that’s 67,000 dollars. And that’s before you factor in cost-of-living differences.

Now, I’m not saying everyone should move to Florida or Texas. There are legitimate reasons to live in higher-tax states—career opportunities, family, quality of life, public services. But you should make that choice with your eyes open. You should know exactly what it’s costing you. And when you’re evaluating a job offer or considering a move, the salary number on the offer letter is meaningless until you run it through the tax math for that specific location.

W-2 vs. 1099 — Employee vs. Independent Contractor

There’s one more distinction about income that’s worth understanding, and it’s increasingly relevant in today’s economy: the difference between being a W-2 employee and a 1099 independent contractor.

When you’re a W-2 employee, your employer handles a lot for you. They withhold your federal and state income taxes. They withhold your share of FICA. They pay the other half of your FICA. They may offer benefits like health insurance and a 401(k). At the end of the year, they send you a W-2 form that summarizes everything.

When you’re a 1099 contractor—a freelancer, a gig worker, a consultant—none of that happens. Nobody withholds anything. You receive the full amount, and it’s your responsibility to set aside money for taxes and pay them yourself. And here’s the part that catches people off guard: you pay both halves of FICA. Your share and the employer’s share. That’s 15.3% in self-employment tax before federal and state income taxes even enter the picture.

I’m not going to go deep into the complexities of self-employment taxes in this module, but the core point is this: if you’re doing freelance work or side gigs, 1,000 dollars in 1099 income is not the same as 1,000 dollars in W-2 income. You’ll keep significantly less of it. Plan accordingly, and set aside at 25-30 percent of any 1099 income for taxes. If you don’t, you’ll get a very unpleasant surprise in April.

Filing your Taxes — It’s Simpler Than you Think

One of the things that keeps people intimidated about taxes is the idea that filing is complicated. And for some situations—business owners, people with complex investment portfolios, real estate investors—it can be. But for the vast majority of people, especially younger earners with a single job and no unusual deductions, filing your taxes is genuinely straightforward.

If you have a W-2 job, take the standard deduction, and don’t have complex investment income, you can file your federal return in well under an hour using free or low-cost software. TurboTax, H&R Block, and similar platforms walk you through the process step by step. The IRS also offers a free filing program called IRS Free File for people who earn below a certain income threshold. You enter your W-2 information, answer a few questions, and the software calculates what you owe or what your refund is.

For most people, there’s no reason to pay someone 200-500 dollars to prepare a basic return. The software does the math for you. Save that money. Invest it. And if your tax situation does become more complex down the road—you start a business, buy rental property, have significant investment income—then it’s worth considering a CPA or a tax professional. But for the typical W-2 earner taking the standard deduction? Do it yourself. It’s one of the easiest ways to keep more of your money.

Pre-tax Tools — Reducing your Tax Bill Legally

We’ve talked throughout this course about 401(k)s, Roth IRAs, and 529 plans. But I want to bring them together here in the context of taxes, because this is where they all connect.

Every dollar you contribute to a traditional 401(k) reduces your taxable income by that dollar. If you’re in the 22 percent bracket and you contribute 10,000 dollars to your 401(k), you just reduced your federal tax bill by 2,200 dollars. You didn’t lose that money. It’s sitting in your retirement account, growing tax-deferred. The government is incentivizing you to save for retirement by giving you a tax break today.

Health insurance premiums paid through your employer are also typically pre-tax. Health Savings Accounts—HSAs—are triple tax-advantaged: contributions are pre-tax, the money grows tax-free, and withdrawals for qualified medical expenses are tax-free. If your employer offers an HSA-eligible plan, this is one of the best tax shelters available to an individual.

And 529 plans, which we covered earlier, offer tax-free growth and tax-free withdrawals for education expenses. While contributions aren’t deductible at the federal level, many states offer a state tax deduction for 529 contributions.

The people who understand these tools and use them pay significantly less in taxes over their lifetime than people who don’t. And the dollars you save in taxes are dollars that can compound in your favor for decades.

Key Takeaways

So let’s summarize with a few key takeaways.

Number one: always think in after-tax dollars. Your salary is not your money. Your take-home pay is your money. When you evaluate a job offer, a raise, a move, or any major financial decision, the number that matters is what you actually get to keep after taxes.

Number two: understand how tax brackets work. The United States uses a progressive system. Moving into a higher bracket does not mean all your income is taxed at the higher rate. Only the dollars above the threshold are taxed at the new rate. You will always take home more money by earning more money.

Number three: know your state’s tax situation. The difference between a no-income-tax state and a high-tax state can easily be 5-10 thousand dollars a year on the same salary. That difference compounds over a career. Factor it into your decisions.

Number four: read your pay stub. Know what’s being deducted, why, and how much. Understand the difference between gross pay and net pay. If your employer offers a 401(k) match, enroll and contribute at least enough to capture the full match. It is free money.

Number five: file your own taxes if your situation is simple. Free or low-cost tax software handles a straightforward W-2 return easily. Don’t pay hundreds of dollars for something you can do yourself in under an hour.

Number six: use pre-tax tools aggressively. 401(k)s, HSAs, and 529 plans are tax shelters that the government created to reward you for planning ahead. Every dollar you put into these accounts is a dollar that works harder for you.

And number seven: if you earn 1099 income, set aside at least twenty-five to thirty percent for taxes immediately. Do not spend it. Self-employment taxes are real, and they catch people off guard every single year.

The Bottom Line

Taxes are some of the biggest expenses that people will pay in their lifetime. And yet most people spend almost no time understanding how they work.

The system is not designed to be intuitive. Pay stubs are confusing. The tax code is dense. And there’s an entire industry—tax preparers, financial advisors, software companies—that profits from that confusion. But the core mechanics are not complicated.

Understand the system before you make decisions in it. Know who profits from your confusion. Think in terms of real, after-tax dollars, not headline numbers. And use the tools the system gives you to keep compounding on your side.

Because at the end of the day, it’s not about how much you earn. It’s about how much you keep.