The biggest tax bracket myth
Most people believe that entering a higher tax bracket means all your income gets taxed at that rate. So when someone says "I'm in the 22% bracket," they think they pay 22% on every dollar they earn. That's not how it works and understanding why can save you from making poor financial decisions.
Tax brackets are marginal, meaning each bracket only applies to income within that range. Only the money that falls into each bracket is taxed at that bracket's rate.
How marginal tax brackets actually work
Let's walk through a real 2026 example. Say you're single and earned $75,000 in taxable income. Here are the (simplified) federal tax brackets:
- 10% on income up to $11,600
- 12% on income from $11,600 to $47,150
- 22% on income from $47,150 to $100,525
Your tax calculation works like this:
First $11,600 10% = $1,160
Next $35,550 ($47,150 - $11,600) 12% = $4,266
Remaining $27,850 ($75,000 - $47,150) 22% = $6,127
Total tax: $11,553
Even though you're "in the 22% bracket," your effective tax rate is only 15.4% ($11,553 $75,000). You're paying 22% on only the portion of income above $47,150.
Why this matters for career decisions
This is why "moving into a higher bracket" isn't the crisis some people think. A $10,000 raise might push you into the 24% bracket, but you don't pay 24% on all $10,000. You pay 24% only on the amount above your previous bracket's top. On that $10,000, you'd pay roughly 24% on maybe $2,000 of it, plus 22% on the rest meaning you actually keep most of that raise.
Using our earlier example: if you earned $85,000 instead of $75,000, your tax goes from $11,553 to $13,529 a difference of $1,976 on the $10,000 raise. You keep $8,024 of that raise (80.2%), not the 76% you'd keep if you mistakenly thought your entire income was taxed at 22%.
State taxes and phase-outs add layers
The federal brackets are just part of the picture. Most states have their own income tax brackets, and some deductions (like retirement contributions) phase out as income rises. This stacks multiple effective rates on top of each other which is why marginal rate (the rate on your next dollar earned) differs from effective rate (your total tax divided by total income).
The distinction matters most when you're deciding whether to take a bonus, start a side business, or make extra contributions to a 401(k). The tax on that marginal income is the only rate that matters for that decision.
Calculate your effective rate quickly
Once you know your tax liability, calculating your effective rate is simple: total tax total income. That's the percentage of your earnings that actually goes to taxes. It's always lower than the bracket you "fall into," and knowing it helps you plan better.
Tax Calculator → see exactly how much tax you'll owe and your effective rate.