Your marginal tax rate is the percentage you pay on your last dollar of income

Your marginal tax rate is the tax rate that applies to the highest portion of your income. It is not the same as your overall tax rate. If you earn $60,000 and fall into the 22% tax bracket, your marginal rate is 22% — but you do not pay 22% on all $60,000. You pay lower rates on the first portions and 22% only on the income that falls within that bracket.

The IRS divides income into layers, each taxed at a different rate. Your marginal rate matters because it tells you what percentage you would pay on one more dollar of income — useful when deciding whether to take a bonus, claim a deduction, or make a retirement contribution.

Key Takeaways

  • Your marginal tax rate is determined by which tax bracket your total income falls into, and it applies only to income within that bracket, not your entire income.
  • The IRS publishes new tax brackets each year, and they differ based on your filing status: single, married filing jointly, married filing separately, or head of household.
  • To find your marginal rate, add up your total taxable income, then match it to the correct tax bracket table for your filing status and the current tax year.
  • Your effective tax rate (what you actually pay overall) is always lower than your marginal rate because lower brackets explore to your first dollars of income.

Step 1: Determine your filing status

Tax brackets are different for each filing status. You must know whether you file as single, married filing jointly, married filing separately, or head of household. This status appears on your prior-year tax return or on the Form 1040 you are preparing now.

If you are married and file jointly, your combined income determines your bracket. If you file separately, each spouse uses their own income and their own brackets. Head of household status (for unmarried people supporting dependents) has its own bracket structure, usually wider than single but narrower than married filing jointly.

Step 2: Calculate your total taxable income

Add all sources of income: wages from a W-2, self-employment income, interest, dividends, capital gains, and any other taxable income. Then subtract your deductions. You can either take the standard deduction (a flat amount set by the IRS each year) or itemize deductions on Schedule A if they are larger.

The number you end up with is your taxable income. This is the figure you use to find your bracket. For example, if your wages are $75,000, you have $2,000 in interest income, and you take the standard deduction of $13,850 (2023, single filer), your taxable income is $63,150.

Step 3: Look up the tax bracket table for your year and status

The IRS publishes tax bracket tables each January for the current tax year. These tables are in the Instructions for Form 1040 or on the IRS website. Find the table that matches your filing status and tax year.

Each table shows income ranges and the corresponding tax rate. For a single filer in 2023, the brackets were: 10% on income up to $11,000; 12% on income from $11,001 to $44,725; 22% on income from $44,726 to $95,375; and so on. Your marginal rate is the rate that applies to the bracket your taxable income falls into.

Step 4: Match your income to the correct bracket

Find the row in the table where your taxable income falls. If you are single with taxable income of $63,150, you fall into the 22% bracket (because $63,150 is between $44,726 and $95,375). Your marginal tax rate is 22%.

This does not mean you pay 22% on all $63,150. It means the last portion of your income — the portion that falls within that bracket — is taxed at 22%. The income below $44,726 is taxed at the lower rates (10% and 12%).

How marginal rate differs from effective tax rate

Many people confuse marginal rate with effective rate. Your effective tax rate is your total tax bill divided by your total taxable income. It is always lower than your marginal rate because you pay lower rates on your first dollars of income.

Using the example above: a single filer with $63,150 in taxable income pays 10% on the first $11,000, 12% on the next $33,725, and 22% on the remaining $18,425. The total tax is roughly $10,714. Divided by $63,150, the effective rate is about 17%. The marginal rate is 22%, but the effective rate is 17%.

Why your marginal rate matters for decisions

Your marginal rate tells you what you actually pay (or save) on additional income or deductions. If you are offered a $5,000 bonus and your marginal rate is 22%, you keep roughly $3,900 after federal tax (the other $1,100 goes to tax). If you contribute $5,000 to a traditional IRA, you reduce your taxable income by $5,000, saving roughly $1,100 in federal tax.

This is why marginal rate is more useful than effective rate for financial planning. It shows you the real cost or benefit of a specific decision, not your average rate across all income.

Frequently Asked Questions

Does my marginal rate change if I get a raise?

It may. If your raise pushes your total income into a higher bracket, your marginal rate increases. For example, if a $10,000 raise moves you from the 22% bracket into the 24% bracket, your marginal rate becomes 24%. Your effective rate also rises, but usually by less than 2 percentage points.

Are capital gains taxed at my marginal rate?

Long-term capital gains have their own bracket structure, separate from ordinary income brackets. They are taxed at 0%, 15%, or 20% depending on your total income and filing status, not at your ordinary marginal rate. Short-term gains are taxed as ordinary income at your marginal rate.

What if I have self-employment income?

Self-employment income is added to your other income to determine your taxable income and bracket. However, you also owe self-employment tax (roughly 15.3% on 92.35% of net self-employment income), which is separate from income tax. Your marginal income tax rate still applies to the income portion, but self-employment tax is calculated separately.

Do state taxes have marginal rates too?

Yes. Most states use their own tax bracket systems. Your state marginal rate is found the same way: match your state taxable income to your state's bracket table. State rates vary widely, from 0% (in states with no income tax) to over 13% in high-tax states.