401(k) Match Calculator
Work out how much your employer adds to your 401(k) under its matching formula, and how much match you'd leave unclaimed by contributing less.
Many employers match employee contributions up to a certain percentage of salary. Contribute at least that much and you get the full benefit; contribute less and you may be passing up money.1 Enter your pay, what you contribute, and your plan's formula to see what you'd receive and what you'd leave behind.
Reading a matching formula
Plans describe the match in two numbers: how much the employer adds per dollar you put in, and the share of pay it applies to. "50% of the first 6%" means the employer adds 50 cents for each dollar you contribute, on contributions up to 6% of your pay. On a $60,000 salary, contributing 6% ($3,600) brings in $1,800 from the employer; contributing 3% brings in only $900.
What it leaves out
Matching contributions may only become fully yours after a vesting period, and some plans calculate the match each paycheck rather than over the year, which matters if you reach the yearly limit early. Employer Matches and Vesting covers both.
The lessons behind it
- Employer Matches and VestingPart 6: Strategy, Behavior, Accounts, and Taxes
- 401(k)s and Other Workplace PlansPart 6: Strategy, Behavior, Accounts, and Taxes
- How Retirement Accounts WorkPart 6: Strategy, Behavior, Accounts, and Taxes · Free
Notes and sources
- FINRA. The Beginner's Guide to 401(k)s. Checked 2026-09-26. Back to text
- Internal Revenue Service. 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500 (IR-2025-111, November 13, 2025). Checked 2026-10-06. Back to text