Why your raise barely changed your paycheck
Where the missing money went, using 2026 figures.
You got a $5,000 raise and expected about $417 more a month. Your paycheck went up by roughly $293. Nothing went wrong — that gap is entirely predictable, and it comes down to one number most people never look up: your marginal rate.
Two rates, and everyone quotes the wrong one
There are two different tax rates in your life, and confusing them is the whole problem.
- Your effective rate is total tax divided by total income — the average across every dollar you earned. It is the number that describes your overall tax burden.
- Your marginal rate is what the next dollar gets taxed at. It is the number that determines what a raise, a bonus, or overtime is actually worth to you.
A raise is made entirely of next dollars. So it is taxed entirely at the marginal rate — which is always the higher of the two.
Worked example: $85,000 to $90,000
Single filer, 2026 federal figures, no state income tax in this example, and no 401(k) contribution yet.
| At $85,000 | At $90,000 | |
|---|---|---|
| Taxable income after the $16,100 standard deduction | $68,900 | $73,900 |
| Federal income tax | $9,870 | $10,970 |
| Social Security & Medicare (7.65%) | $6,503 | $6,885 |
| Take-home pay | $68,628 | $72,145 |
The raise was $5,000. Take-home rose $3,518. The missing $1,483 went to:
- $1,100 in federal income tax — 22% of the new money
- $383 in Social Security and Medicare — 7.65% of the new money
That is 29.65% total, and it is exactly the sum of the two rates: 22% + 7.65%. You keep 70.35 cents of every raise dollar, which turns $417 a month of gross into $293 a month of spendable income.
The bracket myth
The most common misunderstanding in personal finance is that crossing into a higher bracket taxes all of your income at the new rate. It does not. Brackets are stacked, and each one only applies to the income inside it.
At $68,900 of taxable income, that stack looks like this:
| Rate | Applies to | Tax |
|---|---|---|
| 10% | the first $12,400 | $1,240 |
| 12% | $12,400 to $50,400 | $4,560 |
| 22% | $50,400 to $68,900 | $4,070 |
| Total federal income tax | $9,870 | |
Being "in the 22% bracket" means only the top slice is taxed at 22%. The dollars below the threshold keep their lower rates permanently. This is also why the fear of a raise pushing you into a worse position is generally unfounded — the higher rate only ever touches the new money.
The 401(k) effect people forget
If your retirement contribution is set as a percentage rather than a fixed dollar amount, a raise automatically increases it. That is usually good, and it does make your paycheck grow less than expected.
With a 6% contribution, the same $5,000 raise produces about $3,284 more take-home instead of $3,518 — because an extra $300 went into your 401(k). Monthly, that is $274 rather than $293.
Worth being clear about the distinction: that $300 is still your money. It simply moved to an account you cannot spend from this week. That is a very different thing from tax, and it should not be counted as a loss.
What can genuinely reduce your take-home
Tax brackets essentially never do it. If your net pay truly went down after a raise, the cause is almost always one of these:
- A percentage-based deduction rising — 401(k), HSA, or ESPP contributions set as a percentage take more when gross goes up.
- An employer benefit tier changing. Some benefit schedules set premiums by salary band, so crossing a band raises your share of the cost.
- Losing an income-tested benefit or credit. This is the real cliff. Marketplace health-insurance subsidies, childcare assistance, and income-based repayment calculations can shift at specific income thresholds, and those changes are not smooth the way tax brackets are.
- Withholding catching up. If your W-4 was under-withholding before, a payroll update can correct it, which feels like a cut but is really a timing change against next April's bill.
The mid-year surprise that goes the other way
If a paycheck late in the year is suddenly larger with no explanation, it is probably the Social Security wage base. In 2026, the 6.2% Social Security tax applies only to the first $184,500 of earnings. Once your year-to-date pay passes that, the tax stops for the rest of the year and every remaining paycheck grows. It resets in January, which is why some people feel like they get a pay cut every New Year.
Medicare's 1.45% has no cap and keeps going all year.
See it with your own numbers
Every figure above uses 2026 federal brackets and the standard deduction for a single filer with no state income tax. Your marginal rate depends on your filing status, your state, your contributions, and whether any of your income is self-employment.
Open the Take-Home Pay Calculator
You can model multiple income streams, switch between Single, Married Filing Jointly, and Head of Household, adjust the 401(k) percentage, and compare a current scenario against a hypothetical one side by side — which is the fastest way to see what a specific raise is actually worth before you plan around it. Your figures flow into the Budget and Taxes calculators automatically, and there is no sign-up.
CuraMoneta is an educational tool and does not provide financial, tax, or legal advice. Federal brackets, the standard deduction, and the Social Security wage base reflect IRS figures for tax year 2026.