Your marginal tax rate is the rate on your next dollar of income (your top bracket), while your effective tax rate is the average rate across all your income, and it is almost always much lower. A single filer earning $70,000 sits in the 22% marginal bracket but pays only about 10% of gross in federal income tax, because the US system taxes income in layers, not all at one rate. Confusing the two is the most common reason people overestimate their tax and underestimate their take-home pay. This guide explains the difference with recomputed examples and shows you how to estimate your net by hand. To get a number instantly, use our take-home pay calculator.
Marginal rate vs effective rate: the one-sentence difference
Marginal rate is the tax on your last dollar earned; effective rate is your total tax divided by your total income. Because the US uses progressive brackets, your first dollars are taxed at 10%, later dollars at 12%, then 22%, and so on, so your average ends up well below the top rate you reach.
- Marginal rate answers: "If I earn one more dollar, how much of it goes to tax?" It is your highest bracket.
- Effective rate answers: "Of everything I earned, what share went to tax?" It is total tax divided by income.
This distinction directly affects decisions. Use your marginal rate to judge a raise, a bonus, or an extra 401(k) dollar. Use your effective rate to estimate overall take-home pay and budget. Mixing them up leads people to wrongly fear that a raise will push them into a higher bracket and cost them money, which never happens.
How marginal brackets actually work
Only the income inside each bracket is taxed at that bracket's rate; crossing into a higher bracket never re-taxes your earlier dollars. Think of it as filling buckets: the first bucket fills at 10%, and only when it overflows does the next bucket start filling at the higher rate.
Worked example, single filer, $55,000 taxable income (which is $70,000 gross minus a $15,000 standard deduction):
| Income layer | Rate | Tax on layer |
|---|---|---|
| First ~$11,925 | 10% | $1,192.50 |
| Next ~$36,550 | 12% | $4,386.00 |
| Remaining ~$6,525 | 22% | $1,435.50 |
| Total federal income tax | - | $7,014.00 |
The top dollar sits in the 22% bracket, but the blended result is $7,014, which is only 12.75% of taxable income and about 10.0% of the $70,000 gross. That is the whole point: your marginal rate (22%) is not your real rate (about 10%).
Effective federal rate climbs slowly, not in jumps
As income rises, your effective rate rises gradually because only the new top dollars get the higher rate. The table below shows the federal income tax and the effective rate on gross for single filers using the standard deduction, with FICA shown separately.
| Gross (single) | Taxable | Federal income tax | Effective fed rate on gross | Marginal bracket |
|---|---|---|---|---|
| $40,000 | $25,000 | $2,761.50 | 6.9% | 12% |
| $60,000 | $45,000 | $5,161.50 | 8.6% | 12% |
| $80,000 | $65,000 | $9,214.00 | 11.5% | 22% |
| $100,000 | $85,000 | $13,614.00 | 13.6% | 22% |
Notice the $60,000 and $80,000 earners are in different brackets (12% vs 22%), yet the effective rate only rose from 8.6% to 11.5%. The bracket jump sounds dramatic; the real-rate change is mild. This is why a raise can never lower your take-home pay, a point we cover in the pay raise guide.
Your total deduction rate: tax plus FICA
To estimate take-home you need your combined effective rate, which is federal income tax plus the flat 7.65% FICA plus state tax. FICA is the easy part because it is a flat 7.65% with no brackets. For an $80,000 single earner:
- Federal income tax: about $9,214 (11.5% of gross)
- FICA: $80,000 x 0.0765 = $6,120 (7.65% of gross)
- State tax: varies; a 5% state would add $4,000
Combined, that worker loses roughly 24% to deductions and keeps about 76% as take-home pay, even though their marginal federal bracket is 22%. The state portion is the wildcard, which is exactly why any estimate is an estimate. Model your own combined rate in the take-home pay calculator.
How to estimate your take-home pay by hand
You can get within a few percent of your real net with a five-step hand calculation and no software. Here is the method, with a single filer earning $75,000 as the worked example.
- Subtract pre-tax deductions and the standard deduction. $75,000 - $15,000 standard deduction = $60,000 taxable (add any 401(k)/HSA on top).
- Apply the brackets layer by layer. Federal income tax on $60,000 taxable is about $8,114.
- Add FICA at 7.65% of gross. $75,000 x 0.0765 = $5,737.50.
- Add your state tax. A 5% state on $75,000 is $3,750; a no-income-tax state is $0.
- Subtract the total from gross. $75,000 - $8,114 - $5,737.50 - $3,750 = about $57,398.50 net, an effective deduction rate near 23.5%.
In a spreadsheet, the same logic is one column: gross, minus pre-tax deductions, minus a layered federal-tax formula, minus gross times 0.0765, minus gross times your state rate. The result is your annual net; divide by your number of pay periods for per-check figures.
How pay frequency changes each check (but not your rate)
Pay frequency slices the same annual pay into different numbers of checks; it does not change your tax rate or your annual take-home. A weekly worker just gets smaller, more frequent deposits than a monthly worker on the identical salary.
The table below splits the same $65,000 gross with a 22% combined effective rate (about $50,700 net per year) across common US pay schedules.
| Pay frequency | Checks per year | Gross per check | Net per check |
|---|---|---|---|
| Weekly | 52 | $1,250.00 | $975.00 |
| Biweekly | 26 | $2,500.00 | $1,950.00 |
| Semi-monthly | 24 | $2,708.33 | $2,112.50 |
| Monthly | 12 | $5,416.67 | $4,225.00 |
One quirk worth knowing: biweekly pay produces 26 checks, and in some calendar years that means three paychecks in a month instead of two. Your annual total is identical, but the rhythm differs. Budget on the lower two-check months so a third check is a bonus, not a rescue. For converting an offer between schedules first, use the hourly to salary calculator.
When to use marginal vs effective rate
Use the right rate for the right question, because using the wrong one produces a meaningfully wrong answer.
- Use your marginal rate for decisions at the edge: how much of a raise you keep, the after-tax cost of overtime, or the tax savings from one more 401(k) dollar. A $5,000 raise for a 22%-bracket worker in a 5% state, after FICA, nets roughly 65% to 73%, so about $3,250 to $3,650.
- Use your effective rate for the big picture: estimating total annual take-home, building a budget, or comparing two job offers' net pay.
This is also why pushing pre-tax savings is so powerful: each dollar into a traditional 401(k) is shielded at your marginal rate, the highest rate you pay, while barely moving your take-home. See the long-run effect in our 401(k) calculator.
Why your estimate is still an estimate
Even a careful hand calculation is an approximation because filing status, state, credits, and deductions all move the number. The federal brackets differ for single, married filing jointly, and head of household; states range from no income tax to over 9%; and tax credits can lower your real bill below what the brackets suggest. For the most accurate, personalized figure, the IRS offers a free Tax Withholding Estimator that accounts for your full situation.
Get your number now
The takeaway is simple: your bracket is not your real rate, so build your budget on your effective rate and use your marginal rate only for edge decisions. Enter your gross pay and an estimated combined effective rate into our take-home pay calculator for an instant net figure, then compare it to your stub. If you are still comparing offers, pair it with the salary to hourly calculator, and explore more tools in the income category.
Try it yourself
Run your own numbers in the free Take-Home Pay Calculator — instant, private, no sign-up.
Open the Take-Home Pay Calculator →Frequently asked questions
- What is the difference between marginal and effective tax rate?
- Your marginal tax rate is the rate on your next dollar of income (your top bracket), while your effective rate is your total tax divided by your total income. A single filer earning $70,000 has a 22% marginal rate but only about a 10% effective federal rate on gross.
- Why is my effective tax rate lower than my bracket?
- Your effective rate is lower because the US taxes income in layers: your first dollars are taxed at 10%, later dollars at 12%, then 22%, and so on. Only the income inside each bracket gets that bracket's rate, so the blended average is far below your top bracket.
- Does moving into a higher tax bracket reduce my take-home pay?
- No, moving into a higher bracket never lowers your take-home pay, because only the dollars above the bracket threshold are taxed at the higher rate. Your earlier income stays taxed at the lower rates, so a raise always increases your net pay.
- How do I estimate my take-home pay by hand?
- Subtract your standard deduction and pre-tax contributions from gross to get taxable income, apply the federal brackets layer by layer, add FICA at 7.65% of gross, add your state tax, and subtract the total from gross. For $75,000 single in a 5% state, net is about $57,399.
- What is my effective tax rate if I earn $80,000?
- A single filer earning $80,000 with the standard deduction pays about $9,214 in federal income tax, an effective federal rate near 11.5% of gross, even though the marginal bracket is 22%. Adding FICA (7.65%) and a 5% state pushes the combined deduction rate to roughly 24%.
- Does pay frequency change how much tax I pay?
- No, pay frequency only changes the size and number of your checks, not your tax rate or annual take-home. A weekly worker gets 52 smaller deposits and a monthly worker gets 12 larger ones, but on the same salary the yearly net is identical.
- Should I use my marginal or effective rate to estimate a raise?
- Use your marginal rate for a raise, because the raise stacks on top of your existing income and is taxed at your highest bracket. A $5,000 raise for a 22%-bracket worker in a 5% state nets roughly $3,250 to $3,650 after federal tax, state tax, and FICA.
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How to calculate a pay raise: percentage, hourly, and annual examples · Salary to hourly conversion: the formula, the math, and how to compare jobs fairly · How to Calculate Hourly Rate From Salary: The Step-by-Step Formula · Salary to Hourly Conversion Chart: $30k–$150k Reference Table