Somewhere right now, someone is turning down extra shifts because "it would bump me into the next tax bracket." Maybe it's their first real job. Maybe they've been working for thirty years. A relative warned them, a coworker swears it happened to a friend, and the story is always the same: the raise pushed them up a bracket, the government took a bigger bite of everything, and they ended up with less than before.

The story is wrong. Not partly wrong. Arithmetically wrong. And since this newsletter exists for the money lessons school skipped, it feels right to start with the myth that costs people real money out of pure caution.

Federal income tax is progressive, which is a dry way of saying your income gets poured into a row of jars, in order. Each jar holds a fixed amount, and each jar has its own tax rate. The first jar is taxed at 10%. When it fills, your income spills into the next jar, taxed at 12%. Then 22%. And so on.

Being "in the 22% bracket" does not mean you pay 22% on everything. It only tells you which jar your last dollar landed in. The money in the earlier jars keeps its lower rates forever, no matter how much you earn on top.

Here's a single filer with $100,000 of taxable income, using the 2026 federal brackets. (If you've never looked at a tax return, taxable income just means the part of your pay the IRS actually counts, what's left after your deductions.)

This person is "in the 22% bracket," but their actual federal income tax is $16,712, which is just under 17% of their income. The bracket number and the real cost are two different things.

And the jars don't care what you earn. The math works exactly the same on a $45,000 salary as it does on $450,000. Only the number of jars changes.

Their taxable income goes from $100,000 to $110,000. The 22% jar for single filers tops out at $105,700 in 2026, so this raise spills into the 24% bracket. This is the exact moment the myth says the damage happens.

Watch what actually happens:

Total extra tax: $2,286. They keep $7,714 of the $10,000.

Your marginal rate is the bracket your last dollar lands in. It answers exactly one question: what does the next dollar I earn get taxed at?

Your effective rate is your total tax divided by your total income. It answers the question people actually care about: what does income tax cost me on the whole?

The marginal rate is what people panic about. The effective rate is what they actually pay, and unless every dollar you earn fits inside the very first bracket, it's always the lower of the two. If you want to see your own gap, I built a free calculator that shows both numbers side by side using the current year's brackets. It runs in your browser, no signup, nothing tracked.

So the fear is backwards. But hiding inside it is a real question, and it deserves a straight answer: is the extra shift worth it once taxes take their cut?

Here's the honest math. Your regular paycheck fills the cheap jars first. Overtime lands on top, in your most expensive jar, and it also pays the 7.65% Social Security and Medicare tax that comes out of every check. So an overtime hour keeps less of itself than an average hour of your pay does.

Say you make $25 an hour and overtime pays time and a half, so $37.50. In the 22% bracket, that extra hour gives up about $8.25 to federal income tax and about $2.87 to payroll tax, and roughly $26 lands in your pocket, before any state income tax. Still more than your base wage. A long way from $37.50.

One wrinkle currently in your favor: through 2028, a federal deduction lets many workers deduct the overtime premium, the "half" in time and a half, from their income tax. It's capped at $12,500 a year ($25,000 filing jointly), it phases out at higher incomes, and payroll tax still applies. For our $25-an-hour worker, it pushes that same hour to roughly $29.

So the sharp question was never "will overtime backfire?" It can't. The question is "is my Saturday worth about $26 to $29 an hour to me, after tax?" Sometimes yes, sometimes no. Rent due, a card balance to kill, a slow season coming: yes looks different in different lives. The point is you're deciding with real numbers instead of a rumor.

Fairness requires saying the myth has one real cousin. Some government benefits and subsidies do cut off sharply at specific income levels, including a few that run through the tax code itself, like some health insurance credits. Cross one of those lines and a family really can end up worse off for earning slightly more. That's called a benefits cliff, it's real, and it's a genuine policy problem. But it's a story about benefit rules, not tax brackets, and it doesn't apply to the raise conversation most people are having.

The other source of confusion is the paycheck itself. A raise or a bonus can change how much your employer withholds, sometimes in ways that make a single check look over-taxed. Withholding is an estimate that settles up at filing time. The brackets themselves never took more than the math above allows.

Take the raise, always. It can't hurt you. Take the overtime when the after-tax hour is worth your time. Negotiate hard. The tax code is full of things worth planning around, but "don't earn more" has never been one of them.

The usual honest note: this is education, not personalized tax advice. Your return has moving parts a newsletter can't see, so for decisions that hinge on your exact numbers, talk to a professional.

If there's a money belief you've always wondered about, hit reply and tell me. The answers become future issues.