What is Marginal Tax Rate?
The marginal tax rate is pivotal in understanding how income taxes are calculated. It's the tax rate you pay on an additional dollar of income. For many, this can seem confusing, because our U.S. tax system uses progressive tax rates — meaning your income is taxed at multiple rates as you move up the brackets.
Anyone who earns income and files a tax return will encounter a marginal tax rate. It is especially significant when considering how additional income, like a bonus or side gig earnings, will be taxed. By knowing your marginal tax rate, you can plan for these taxes and make informed decisions about work and investments.
How Marginal Tax Rate works
Here’s a simplified example of how marginal tax rates work. Assume you are a single filer for 2023, facing the following federal tax rates:
- 10% on income up to $11,000
- 12% on income between $11,001 and $44,725
- 22% on income between $44,726 and $95,375
If you earn $50,000, your income would be taxed in three different brackets. The first $11,000 is taxed at 10%, the next $33,725 at 12%, and the remaining $5,275 at 22%.
| Income Range | Tax Rate | Tax Calculation |
|---|---|---|
| $0-$11,000 | 10% | $11,000 x 10% = $1,100 |
| $11,001-$44,725 | 12% | $33,725 x 12% = $4,047 |
| $44,726-$50,000 | 22% | $5,275 x 22% = $1,160.50 |
Total tax: $1,100 + $4,047 + $1,160.50 = $6,307.50.
Why Marginal Tax Rate matters for your money
Understanding your marginal tax rate allows you to anticipate how much of your next dollar earned will be taxed. For instance, if you're considering working extra hours or taking on freelance work, knowing you’ll pay 22% on that additional income might influence your decision.
This awareness also informs investment choices. If you're in a high bracket, strategies like tax-deferred retirement accounts may become more appealing. They can reduce your taxable income and potentially lower your marginal tax rate.
Furthermore, when contemplating financial moves like selling an asset, understanding the rate allows you to effectively forecast the tax implications. For anyone with a savings account earning 4.5% APY, knowing how interest earnings will be taxed can help determine whether the after-tax returns meet your goals.
Common mistakes
- Confusing marginal rate with effective tax rate. The marginal rate applies to your next dollar, not your entire income.
- Failing to consider marginal rate in financial planning. Not factoring in this rate when making extra income can lead to unexpected tax bills.
- Assuming state and federal marginal rates are the same. They can differ significantly, affecting your total tax burden.
Related concepts
- Effective Tax Rate: This is the average rate you pay on all taxable income.
- Tax Bracket: The divisions at which tax rates change in a progressive tax system.
- Capital Gains Tax: Tax on the growth in value of investments incurred when they are sold.
- Tax Deduction: Reduction of income that is able to be taxed.
- Tax Credit: Amount of money that taxpayers can subtract directly from taxes owed.
:::tip Don't forget to account for your marginal tax rate when calculating take-home pay from bonuses or part-time income. It's not just your base salary! :::
:::didYouKnow The highest marginal tax rate in U.S. history was 94% in 1944 and 1945, applied to income over $200,000! :::