Average and marginal tax rates: a dated example
The important distinction is between the tax paid across all your income and the tax on the next dollar. A higher bracket applies only to income in that bracket. Federal income tax brackets do not include Social Security, Medicare, or state income tax.
At $10,000 in annual wages, a person taking the standard deduction may owe no federal income tax and face a 0% marginal federal income tax rate. Covered wages can still incur employee Social Security and Medicare taxes. Zero federal income tax does not necessarily mean zero total tax.
At $100,000 in annual wages, the combined marginal rate depends on the year, filing status, state, deductions, credits, and any benefit reductions. It is not automatically 50%. The example below shows how a substantially higher marginal rate can coexist with a lower average rate.
For this dated 2026 example, assume a single Minnesota employee under 65, only wage income, the federal and Minnesota standard deductions, and no credits, other deductions, benefit changes, or additional work costs. Employee payroll taxes are included; the employer's separate contribution is not deducted from take-home pay.
The standard deductions are $16,100 federally and $15,300 in Minnesota. At $100,000 of wages, federal taxable income is $83,900. Federal income tax is $13,170, an average of 13.17% of gross wages, while the marginal federal rate is 22%. Adding 6.80% Minnesota income tax and 7.65% employee payroll tax gives a combined marginal rate of 36.45%. Another $100 of gross pay therefore adds $63.55 in take-home pay before additional work expenses.
2026 illustration: single Minnesota employee, standard deductions, no credits or other adjustments. Rates apply to the next dollar of covered wages at each income level.
| Measure | $10,000 annual wages | $100,000 annual wages |
|---|
| Average federal income tax rate, as a share of gross wages | 0% | 13.17% |
|---|
| Marginal federal income tax rate | 0% | 22% |
|---|
| Marginal Minnesota income tax rate | 0% | 6.80% |
|---|
| Employee Social Security + Medicare | 6.20% + 1.45% | 6.20% + 1.45% |
|---|
| Combined marginal tax rate | 7.65% | 36.45% |
|---|
| Take-home pay from another $100 gross | $92.35 | $63.55 |
|---|
Sources: IRS 2026 brackets and deductions, IRS payroll tax rates, and Minnesota Revenue 2026 rates.
Discussion questions
For individual reflection or classroom discussion. These questions are not graded.
- What is the difference between extra gross pay, extra take-home pay, and extra discretionary income?
- Why can a small increase in take-home pay make a large percentage difference to the money left after bills?
- Why does an average tax rate of 11% not tell you the tax on the next dollar earned?
- How would extra transport or childcare costs change the reward for another hour of work?
- How do combined marginal taxes and benefit reductions affect the incentive to earn more?