Bonus vs Salary: Why Your Bonus Is Taxed More (2026)

A bonus is ordinary wage income for your annual return, but a bonus check can look more heavily taxed because payroll may use a supplemental-wage withholding method. Review IRS Publication 15 for the current method and percentage.

Regular-Wage Modeling: $100,000 vs. $110,000

The calculator does not model a supplemental bonus check. This table uses engine-derived regular-wage estimates to show the annual take-home difference between a $100,000 salary and $110,000 of wages.

Texas wages	Annual take-home
$100,000 salary	$79,180
$110,000 wages	$86,215

The modeled regular-wage take-home increase is $7,035. Your actual bonus check can differ because employer payroll treatment, state withholding, benefits elections, and year-to-date wages matter.

Same income, different withholding methods

Bonus payments and regular salary are both ordinary wage income for annual tax purposes. The difference workers notice is per-check withholding: employers often apply supplemental wage withholding methods on bonuses while salary uses standard wage tables under IRS Publication 15-T.

Supplemental withholding on bonuses

IRS rules allow employers to withhold federal income tax on supplemental wages using a flat rate method or by aggregating supplemental and regular wages. The flat method produces a large single-check withholding amount that can feel like a punitive tax rate even though annual reconciliation applies normal brackets.

Salary withholding is spread across the year

Regular wages use annualized withholding tables based on pay frequency and W-4 entries. Federal withholding on salary checks is smoothed across the year rather than concentrated in one payment.

FICA applies the same way

Social Security is withheld at 6.2% of gross bonus and salary up to the annual wage base. Medicare is 1.45% on all wages. A bonus check includes FICA lines just like a regular paycheck. If the bonus pushes year-to-date wages over the Social Security cap, Social Security withholding may drop on later checks.

State tax on bonuses

States generally tax bonus wages as ordinary income. Some states require supplemental withholding rates on bonuses; others apply regular wage tables. Progressive states withhold more on large bonus checks when supplemental methods apply. No-income-tax states withhold zero state tax on bonuses.

Net bonus planning

Budget from expected net bonus after withholding, not gross. Use the bonus tax calculator and see how bonuses are taxed for structural guidance. Over-withholding on bonuses often produces a larger refund at filing rather than representing final tax cost.

Equity and signing bonuses

RSU vesting and signing bonuses follow similar supplemental withholding frameworks. See RSU tax guide for vesting events distinct from cash performance bonuses.

Related guides

Paycheck withholding guide, salary negotiation tax impact, and paycheck calculator help model combined salary and bonus scenarios.

Frequently Asked Questions

Aggregate method employers

Some employers combine bonus and regular wages in the same pay period using the aggregate method under IRS Publication 15-T. Aggregate withholding may produce lower per-check bonus withholding than flat supplemental methods — employer payroll system settings determine which method applies.

Year-end true-up on Form 1040

Total bonus and salary income reconcile on your annual return. Credits, deductions, and bracket application determine final liability — not the per-check supplemental withholding rate shown on a bonus stub.

Planning cash flow around net bonus

Set aside expected net bonus after withholding for planned expenses rather than gross. Use salary band pages to model combined annual income including bonus for household budgeting.

Commission vs bonus withholding

Sales commissions may use the same supplemental withholding rules as discretionary bonuses depending on employer payroll coding. Verify whether commission appears as regular wages or supplemental on your stub when planning cash flow.

Tax-deferred bonus deferral plans

Some employers offer nonqualified deferred compensation plans that delay bonus taxation to future years. Standard cash bonuses are taxable in the year paid — deferred plans follow separate rules requiring professional review.

Frequently Asked Questions

Figures and methods are based on official-source data encoded in the calculator. Not tax advice. Review the methodology and consult a qualified professional for your situation.