401(k) Employer Match Calculator
An employer match is one of the most valuable benefits in a 401(k) plan. The standard formula caps the match at a percentage of your salary: your employer contributes a set rate (for example, 50%) on each dollar you contribute, up to the match cap percentage of your salary. This calculator shows your annual employee contribution, the employer match you receive, and total combined annual additions. Enter your annual salary, your contribution rate, your employer's match rate, and the match cap to see exactly how much free money you are leaving on the table if you contribute below the cap.
401(k) employer match formula
Employee contribution = salary * (contribution rate / 100)
Matched contribution = salary * min(contribution rate, match cap) / 100
Employer match = matched contribution * (match rate / 100)
Total additions = employee contribution + employer match
The employer only applies the match rate to the portion of your contribution up to the match cap. If you contribute below the cap, you receive a proportionally smaller match.
Understanding your 401(k) match
- A 50% match up to 6% of salary is the most common formula. It adds 3% of your salary if you contribute 6%.
- A 100% match up to 3% gives you $3 for every $3 you put in (on the first 3% of salary).
- If you earn $75,000 and contribute 6% ($4,500) with a 50% match capped at 6%, your employer adds $2,250 per year.
- Total contributions (employee plus employer) are capped at $70,000 for 2025 under IRS Section 415.
- Vesting schedules may apply: check your Summary Plan Description to know when the employer match becomes fully yours.
Frequently asked questions
How does a 401(k) employer match work?
An employer match is a contribution your employer makes to your 401(k) based on how much you contribute. A common formula is 50 cents per dollar up to 6% of salary, meaning the employer adds up to 3% of your salary if you contribute at least 6%.
What is the 2025 401(k) contribution limit?
For 2025, the IRS elective deferral limit is $23,500 for employees under age 50. Employees aged 50 or older may contribute an additional $7,500 catch-up contribution, for a total of $31,000. Total contributions (employee plus employer) cannot exceed $70,000.
What does 'match cap' mean?
The match cap is the maximum percentage of salary on which the employer will calculate the match. If the cap is 6%, the employer only matches contributions on the first 6% of your salary, even if you contribute more.
Is employer match included in the IRS contribution limit?
No. The $23,500 elective deferral limit (2025) applies only to your own contributions. Employer matches are counted separately toward the combined $70,000 annual additions limit (IRS Section 415).
Should I always contribute enough to get the full employer match?
Financial planners generally recommend contributing at least enough to capture the full employer match, as it represents an immediate 50-100% return on that portion of your contribution before any investment growth.
Official sources
Reviewed by the CalculatorHub team, edited by James Graham, 15 June 2026. See our methodology.