How Much is a 5% Raise Worth After Tax on a $100,000 Salary in United States?
The Quick Answer
If you earn $100,000 per year in United States and get a 5% raise, your gross annual pay increases by $5,000 to $105,000. After income tax and statutory payroll deductions (FICA/National Insurance/CPP/Medicare Levy), your net take-home pay increases by $3,518 per year (or $293 per month). This means the tax drag on your raise is 29.6%, allowing you to keep 70.3% of your new earnings.
Raise & Promotion Calculator
Model your salary increase side-by-side. Enter your current salary and your proposed raise to see how your take-home pay changes and calculate your exact tax drag.
Promotion Details
US Tax Options
Raise Summary
Gross Increase
$5,000
Net Cash Increase
$3,518
| Calculation Level | Current Pay | New Pay | Net Change |
|---|---|---|---|
| Annual Gross Salary | $100,000 | $105,000 | $5,000 |
| Total Taxes & Payroll Levies | $21,022 | $22,505 | $1,483 |
| Net Take-Home Salary | $78,978 | $82,496 | $3,518 |
| Monthly Net Take-Home | $6,582 | $6,875 | $293 |
Understanding Promotion Increases & Tax Drag
What is "Tax Drag"?
Tax drag refers to the portion of your raise or promotion salary increase that is consumed by taxes and payroll deductions. Because your base income already utilizes lower progressive brackets and standard deductions, any incremental increase in salary is taxed at your highest **marginal tax rate**.
For example, if your current salary is $70k and your raise is $15k, that entire extra $15k is subject to your top federal rate (e.g. 22%) plus state tax and FICA (7.65%), meaning your marginal tax rate on the raise is significantly higher than your overall effective tax rate.
Tax Optimization on Raises
When receiving a raise, you can counter the tax drag by allocating a portion of your increase into pre-tax accounts. Increasing your traditional 401(k) contribution percentage or maximizing HSA contributions reduces your taxable federal and state basis, ensuring you shelter more of your new salary from high marginal brackets.
Why is my raise taxed at a higher rate than my base salary?
This phenomenon is known as **tax drag** or the **marginal tax rate effect**. In progressive tax systems (such as those in the US, UK, Canada, and Australia), your initial earnings take advantage of tax-free allowances and lower tax bracket rates.
However, when you receive a raise, the additional income does not benefit from those low brackets or standard deductions again. Instead, every single dollar of your raise is piled on top of your existing income and taxed at your highest **marginal tax bracket**. Consequently, a larger percentage of your raise is deducted for tax than the average tax rate on your baseline salary.
How to beat tax drag:
- In the US: Increase your pre-tax contributions to a traditional 401(k) or Health Savings Account (HSA) to shelter your raise from federal and state income taxes.
- In the UK: Divert a portion of your salary increase into your workplace pension scheme (particularly if using salary sacrifice) to avoid entering higher tax bands.
- In Canada: Allocate some of the incremental pay to your Registered Retirement Savings Plan (RRSP) to claim a tax deduction.
- In Australia: Make voluntary superannuation contributions (concessional contributions) to reduce taxable salary wages.