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Connect on LinkedInYour marginal tax rate is the federal income tax rate that applies to your next dollar of ordinary taxable income. A raise or bonus can push part of your income into a higher bracket, but it doesn’t mean everything you earn gets taxed at that higher rate.
At Bright!Tax, we help Americans abroad understand what extra income means for their U.S. taxes. The answer can involve more than a bracket: foreign income exclusions, tax credits, and self-employment tax can all affect how much you actually keep.
🗒️ Key updates for 2026
- Tax brackets have increased for inflation. The seven federal income tax rates remain the same, but the income thresholds have changed.
- The basic standard deduction is higher. For 2026, it is $16,100 for single filers and married people filing separately, $32,200 for married couples filing jointly, and $24,150 for heads of household.
- The Foreign Earned Income Exclusion limit has increased. Eligible taxpayers can exclude up to $132,900 of qualifying foreign earned income for 2026, subject to eligibility and proration rules.
What are marginal tax rates?
Think of federal income tax brackets as layers. Each layer has its own rate, and only the income within that layer is taxed at that rate.
Your marginal rate usually refers to the bracket that applies to your next dollar of ordinary taxable income. That makes it useful when you’re considering a raise, a bonus, or another freelance project.
Several things can change where that next dollar lands:
| What changes? | How it can affect your taxes |
|---|---|
| A raise, bonus, or commission | Additional taxable wages can fill your current bracket and spill into the next one. |
| Freelance or business income | Net business profit generally adds to your other income, with deductions and self-employment tax also affecting the result. |
| Your filing status | Different filing statuses have different bracket thresholds. |
| Your deductions | Allowable deductions can reduce taxable income, sometimes keeping more of it in a lower bracket. |
| Foreign income exclusions or tax credits | These can change your U.S. tax calculation, so your bracket alone may not tell the full story. |
For example, consider Nisha, a single filer living in Singapore. Before a bonus, she has $49,000 of ordinary U.S. taxable income. An additional $3,000 of taxable income would cross the 2026 threshold of $50,400.
Using the bracket rates directly, $1,400 of that additional income falls in the 12% bracket and $1,600 falls in the 22% bracket. The additional federal income tax is $520—not 22% of her entire income.
That example assumes no foreign income exclusion, credits, or other changes to her tax calculation. When we review a situation like this at Bright!Tax, we also check those factors before estimating the amount to set aside.
💡 Pro Tip:
Deferring a payment can sometimes help if you expect a lower tax rate next year. But timing matters: for a cash-basis taxpayer, income generally counts when it is actually or constructively received. Simply waiting until January to deposit an available December payment usually won’t move it into the next tax year.
How do federal tax brackets work?
Federal tax brackets apply to taxable income, not automatically to your salary or total receipts. Taxable income generally reflects income after applicable adjustments and deductions.
Here are the 2026 federal income tax brackets for three common filing statuses:
| Tax rate | Single | Married filing jointly | Head of household |
|---|---|---|---|
| 10% | Up to $12,400 | Up to $24,800 | Up to $17,700 |
| 12% | Over $12,400 through $50,400 | Over $24,800 through $100,800 | Over $17,700 through $67,450 |
| 22% | Over $50,400 through $105,700 | Over $100,800 through $211,400 | Over $67,450 through $105,700 |
| 24% | Over $105,700 through $201,775 | Over $211,400 through $403,550 | Over $105,700 through $201,750 |
| 32% | Over $201,775 through $256,225 | Over $403,550 through $512,450 | Over $201,750 through $256,200 |
| 35% | Over $256,225 through $640,600 | Over $512,450 through $768,700 | Over $256,200 through $640,600 |
| 37% | Over $640,600 | Over $768,700 | Over $640,600 |
Suppose you’re single and have $60,000 of ordinary taxable income. Your highest dollars fall in the 22% bracket, but most of your income is taxed at lower rates.
| Portion of taxable income | Rate | Tax using bracket rates |
|---|---|---|
| First $12,400 | 10% | $1,240 |
| Next $38,000 | 12% | $4,560 |
| Remaining $9,600 | 22% | $2,112 |
| Total | $7,912 |
This is a simplified illustration using the bracket rates directly. Your filed return may use IRS tax tables or other worksheets, and credits, foreign income exclusions, or additional taxes can change the final amount.
The important point: moving into the 22% bracket doesn’t turn your whole $60,000 into income taxed at 22%.
What is the difference between a marginal and effective tax rate?
Your marginal tax rate helps you estimate the tax on additional income. Your effective tax rate describes the average tax burden across a specified measure of income.
The denominator matters. Dividing tax by taxable income produces a different percentage from dividing it by total income before deductions.
Using our $60,000 taxable-income example:
| Measure | Calculation | Result |
|---|---|---|
| Marginal federal income tax rate | Rate on the next ordinary taxable dollar | 22% |
| Average federal income tax rate on taxable income | $7,912 ÷ $60,000 | About 13.2% |
| Average federal income tax rate on income before the standard deduction* | $7,912 ÷ $76,100 | About 10.4% |
The last row assumes $76,100 of income, the $16,100 basic standard deduction, and no other adjustments, deductions, credits, or taxes.
For budgeting, we find it helpful to be clear about which measure you’re using. A percentage based on taxable income shouldn’t be treated as the percentage of your entire paycheck going to federal income tax.
Neither calculation includes state income tax, Social Security, Medicare, or foreign taxes.
💡 Pro Tip:
Eligible deductible contributions can reduce taxable income, but check the rules first. A traditional IRA deduction depends on factors including compensation, income, and workplace retirement coverage. Income excluded under the FEIE generally doesn’t count as compensation for IRA contribution purposes. An HSA deduction also requires qualifying coverage and other eligibility conditions—having health insurance abroad doesn’t automatically qualify you.
How do bonuses and side hustles affect your marginal tax rate?
Extra income can arrive without enough tax being collected upfront. That’s why we separate two questions when helping our Bright!Tax clients plan: How much tax does the income create, and how much has already been paid toward it?
Your marginal rate on workplace bonuses
A bonus is generally wage income. Its final federal income tax treatment depends on your annual tax calculation, even if your employer withholds a different percentage when paying it.
For qualifying separately identified supplemental wages, a U.S. employer may use the optional 22% federal withholding method. Employers can also use an aggregate method. Supplemental wages above $1 million in a calendar year have a separate 37% withholding rule for the excess.
These U.S. payroll rules don’t mean every foreign employer will withhold U.S. tax.
| How a bonus is handled | What it means |
|---|---|
| Employer uses optional 22% withholding | The amount withheld may be higher or lower than the tax ultimately attributable to the bonus. |
| Employer uses the aggregate method | Withholding is calculated with regular wages under the applicable payroll rules. |
| Foreign employer doesn’t withhold U.S. tax | You may need to cover any U.S. liability through estimated payments or other withholding. |
Imagine Amara, who lives in the Netherlands and receives a $5,000 bonus through U.S. payroll. Her employer uses 22% federal income tax withholding, taking out $1,100.
If the entire bonus falls in her 24% bracket, it would generate approximately $1,200 of federal income tax before other factors. That leaves a $100 difference attributable to the bonus.
It doesn’t automatically mean Amara will owe $100 when she files. Other withholding, estimated payments, credits, and foreign income provisions determine her overall balance.
💡 Pro Tip:
A bonus covering work performed in an earlier year needs special attention if you claim the FEIE. The IRS has rules for attributing qualifying earnings to the year the services were performed, including limits on when payment must be received. This isn’t a general permission to move bonus income onto an earlier tax return.
Your marginal rate on side hustle income
If you freelance or run a small business, you generally calculate business profit after allowable expenses. That profit feeds into your income tax calculation; your gross customer payments aren’t automatically all taxable profit.
Your business income doesn’t receive a separate set of lower brackets. But deductions, credits, and other rules mean the calculation involves more than multiplying every dollar received by your highest bracket rate.
Consider Omar, a designer living in Dubai. He receives $12,000 from freelance work and has $2,000 of allowable business expenses.
| Item | Amount |
|---|---|
| Freelance receipts | $12,000 |
| Allowable business expenses | $2,000 |
| Net business profit | $10,000 |
That $10,000 is the starting point for his business-income calculations, before applicable personal tax adjustments and deductions.
He may also owe self-employment tax, even if his income qualifies for the FEIE.
Under the general rules, self-employment tax applies to 92.35% of net profit. The headline rate is 15.3%, made up of Social Security and Medicare:
| Component | General rule for 2026 |
|---|---|
| Social Security | 12.4%, subject to the $184,500 combined wage and self-employment earnings limit |
| Medicare | 2.9%, without an earnings cap |
| Additional Medicare Tax | An additional 0.9% can apply above the relevant filing-status threshold |
Assuming Omar has no other wages or self-employment income affecting these limits, his estimated self-employment tax would be approximately $1,413: $10,000 × 92.35% × 15.3%.
An income tax deduction for the employer-equivalent portion generally reduces income subject to income tax. It doesn’t reduce the self-employment tax itself.
International rules can change the outcome. A qualifying social security agreement may assign coverage to another country. We check that separately from the FEIE because excluding foreign earnings doesn’t itself eliminate U.S. self-employment tax.
💡 Pro Tip:
Keep records of ordinary and necessary business expenses. Software, equipment, and internet costs may qualify, but mixed-use expenses need a business-use allocation, and some purchases must be depreciated or otherwise treated under special rules.
How does earning money abroad affect your tax bracket?
U.S. citizens and resident aliens—including most green card holders—generally report worldwide income, even when living abroad.
That can include foreign salary, freelance profit, investment income, and U.S.-source income. Living overseas doesn’t automatically remove the requirement to file a U.S. tax return.
Two provisions often help reduce double taxation:
| Provision | What it does | Important limitation |
|---|---|---|
| Foreign Earned Income Exclusion | Excludes qualifying foreign earned income, up to $132,900 per eligible person for 2026 | Requires eligibility; doesn’t cover investment income or ordinary rental income |
| Foreign Tax Credit | Can offset U.S. income tax with qualifying foreign income taxes | Subject to sourcing, income-category, and credit limitation rules |
The FEIE doesn’t restart your remaining income at the lowest bracket
To claim the FEIE, you generally need a foreign tax home and must meet either the bona fide residence test or the physical presence test.
If you qualify and exclude income, the stacking rule still matters. The IRS calculates tax on your remaining income using the rates that would apply if the excluded income were included.
For example, suppose Elena lives in Spain, excludes qualifying foreign salary, and also has taxable profit from a U.S. rental property.
The rental profit doesn’t automatically start in the 10% bracket just because her salary was excluded. We would apply the Foreign Earned Income Tax Worksheet and check the rest of her return before estimating the U.S. tax.
Preferentially taxed capital gains and qualified dividends can require additional worksheets.
The Foreign Tax Credit reduces tax rather than excluding income
The FTC works differently: qualifying foreign income generally remains in your U.S. tax calculation, and the credit can reduce the resulting U.S. income tax.
It isn’t an unrestricted credit for every tax paid overseas. The amount available depends on the Foreign Tax Credit rules, including the source and category of the income.
You can sometimes use the FEIE and FTC on the same return for different portions of income. However, you can’t claim a credit for foreign taxes attributable to income excluded under the FEIE.
That’s why we compare the Foreign Tax Credit and Foreign Earned Income Exclusion rather than assuming the largest exclusion creates the best result.
💡 Pro Tip:
Check your existing FEIE election before changing strategies. Revoking it can restrict your ability to claim it again for the next five tax years unless you obtain IRS approval.
Know what your extra income will really cost
A higher tax bracket doesn’t swallow your entire raise. But bonuses, freelance profit, foreign income exclusions, and tax credits can change how much of that extra income reaches your bank account.
At Bright!Tax, we help Americans abroad review their income, compare the FEIE and Foreign Tax Credit, and plan for withholding or estimated payments. We put the pieces together so you can make decisions with a clearer picture of your U.S. taxes.
Get help planning your U.S. expat taxes with Bright!Tax.
Frequently Asked Questions (FAQs)
What is the difference between my marginal rate and my effective tax rate?
Your marginal rate generally describes the federal income tax rate on your next dollar of ordinary taxable income. Your effective rate measures your average tax burden. Check whether that average is calculated using taxable income, adjusted gross income, or total income—the denominator changes the percentage.
Can long-term capital gains push my salary into a higher tax bracket?
Generally, long-term capital gains don’t directly push ordinary wages into a higher ordinary income tax bracket. They have their own rate calculation, with ordinary taxable income generally filling the lower income ranges first.
However, gains can increase adjusted gross income, affect deductions or credits, and trigger other taxes, such as the Net Investment Income Tax. The IRS capital gains rules explain the separate rate structure.
Do state taxes affect my federal marginal tax rate?
State tax rates don’t directly set your federal bracket. However, allowable state and local taxes can affect federal taxable income if you itemize deductions, subject to the applicable deduction limits.
If you live abroad, whether you still owe state income tax depends on that state’s residency and sourcing rules.
Can entering a higher bracket make my take-home pay go down?
Entering a higher federal income tax bracket, by itself, doesn’t reduce your overall after-tax income. Only the income above the threshold is taxed at the higher rate.
Other factors, such as benefit eligibility or deduction and credit phaseouts, can affect the broader result. Those are separate from simply crossing a bracket threshold.
How does filing jointly with a nonresident spouse affect my tax bracket?
If your spouse is a nonresident alien, you may be eligible to elect to treat them as a U.S. resident for income tax purposes and file jointly.
Joint filing provides different brackets and a larger basic standard deduction than single or married-filing-separately status. But the election generally brings both spouses’ worldwide income into the U.S. income tax system and has continuing consequences.
At Bright!Tax, we compare the overall result before recommending an election. A larger deduction alone doesn’t tell you whether it will save tax. The IRS guidance for married taxpayers abroad explains the eligibility rules.
Why do tax brackets change each year?
The IRS generally adjusts federal bracket thresholds for inflation. This helps limit “bracket creep,” where income increases associated with inflation expose more income to higher rates.
The adjustment doesn’t guarantee your tax stays the same, and Congress can separately change tax laws.
Can retirement contributions lower my marginal tax rate?
Eligible deductible or pre-tax contributions can reduce taxable income. That may move your highest taxable dollars into a lower bracket, although you can still save tax without changing brackets.
Traditional IRA deductions depend on eligibility and income limits. Roth IRA contributions don’t provide a current deduction, and foreign retirement plans don’t automatically receive the same U.S. treatment as U.S. plans.
Will itemizing deductions put me in a lower bracket?
Possibly, if your allowable itemized deductions reduce taxable income enough to cross a bracket threshold.
Itemizing generally helps when allowable itemized deductions exceed your available standard deduction. Even if your bracket stays the same, a larger deduction can still reduce your income tax.
Can my income fall into more than one tax bracket?
Yes. That’s how the progressive system normally works. Different portions of ordinary taxable income are taxed at different rates; your marginal bracket generally describes the rate applying to the highest portion.
Foreign income exclusions and preferentially taxed income can make the calculation more involved.
Does filing status change my marginal tax rate?
It can. Single, married filing jointly, married filing separately, and head of household have different bracket thresholds.
Eligible qualifying surviving spouses generally use the joint-return rates and standard deduction for the two tax years following the year of their spouse’s death. You must meet the requirements for whichever status you use; the IRS filing-status guidance explains them.
