Taxes 101

Why taxes matter

The government collects taxes to fund public services — roads, schools, the military, Social Security, Medicare. As a working adult in the U.S., you'll pay federal income tax, state income tax (in most states), and FICA taxes (Social Security and Medicare). Understanding how these work means you can make smarter decisions about your income, investments, and deductions.

The documents you need to know

W-2 (Employee tax form)

If you work for an employer, you'll receive a W-2 by January 31st each year. It shows your total earnings for the previous year and how much was withheld for federal taxes, state taxes, and Social Security/Medicare. This is the main document you use to file your taxes.

1099 (Freelance/self-employment form)

If you earn money as a freelancer, independent contractor, or from investments, you'll receive a 1099. Unlike a W-2, no taxes are withheld from 1099 income — you're responsible for setting aside and paying your own taxes, including self-employment tax.

W-4 (Employee withholding form)

When you start a new job, you fill out a W-4 to tell your employer how much to withhold from each paycheck for federal taxes. Getting this right means you won't owe a huge bill in April — or give the government an interest-free loan with an oversized refund.

How tax brackets work

The U.S. uses a progressive tax system — you pay different rates on different portions of your income. Your "tax bracket" doesn't mean you pay that rate on everything you earn. Here's how it works:

Say you earn $50,000 a year. You don't pay one flat rate on all $50,000. Instead:

• The first ~$11,000 is taxed at 10%
• The next portion up to ~$44,000 is taxed at 12%
• The remaining amount is taxed at 22%

So even if you're "in the 22% bracket," your effective tax rate — what you actually pay on average — is lower. Most people are surprised by how much lower their real tax bill is than they expected.

Deductions and credits

Two things can lower your tax bill:

• Deductions reduce your taxable income. The standard deduction (a set dollar amount everyone can take) is the easiest — most people take this instead of itemizing. The more deductions you have, the less income gets taxed.
• Tax credits directly reduce your tax bill dollar for dollar — they're more valuable. For example, a $1,000 tax credit saves you exactly $1,000, while a $1,000 deduction saves you $1,000 × your tax rate.

Common tax credits and deductions

How to file your taxes

The federal tax deadline is April 15th each year. You have several options for filing:

• IRS Free File: If your income is below $79,000, you can file your federal taxes for free at IRS.gov/freefile using software from major tax companies
• TurboTax / H&R Block: Paid software that walks you through the process step by step — good if you have more complex returns
• Tax professional (CPA): Worth it if you're self-employed, own property, have investments, or run a business
• VITA (Volunteer Income Tax Assistance): Free in-person help from IRS-certified volunteers — available at many libraries and community centers for people earning under ~$67,000

FICA taxes — Social Security and Medicare

You'll notice on your pay stub that money is withheld for Social Security (6.2% of your wages) and Medicare (1.45%). Your employer matches these amounts. If you're self-employed, you pay both sides — 15.3% total — called the self-employment tax. These are separate from income taxes and aren't affected by deductions the same way.

Key vocabulary