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How to Calculate Your 401(k) Employer Match

Translate the match into tiers: the percentage of pay you contribute is different from the percentage of that contribution your employer matches.

By Steven, Founder · Published October 28, 2026 · Updated October 28, 2026

Short answer

  • A 50% match on the first 6% of pay means a maximum employer contribution of 3% of eligible pay.
  • Tiered formulas must be calculated one tier at a time.
  • Annual totals can overstate the match when the plan calculates it per paycheck without a true-up.

Get the formula and the definition of pay

Find the summary plan description, current match notice and payroll election. Ask whether eligible compensation includes bonuses, commissions and overtime. Also check the date participation begins; a full year's salary multiplied by the match rate can overstate what a newly eligible employee receives.

A formula such as '100% of the first 3%, plus 50% of the next 2%' has two ceilings. The first three percentage points receive a dollar-for-dollar match. The next two receive fifty cents per dollar. Contributions above 5% receive no further match under that formula, though they can still increase retirement savings.

Work the tiers on an $80,000 salary

Assume all $80,000 is eligible compensation, you participate all year, and timing does not reduce the match. At a 5% employee contribution, you save $4,000. The first tier pays $80,000 × 3% × 100% = $2,400; the second pays $80,000 × 2% × 50% = $800. Employer money totals $3,200, or 4% of pay.

At a 4% employee rate, your contribution is $3,200 and the match is $2,800: $2,400 plus half of the next $800. Increasing your contribution by $800 earns another $400 of match. Use the 401(k) match calculator to compare contribution levels, then check its result against your actual plan formula.

Check whether the formula is applied each paycheck

For 24 equal paychecks, $80,000 of annual pay is approximately $3,333.33 per check. A 5% contribution is about $166.67 and the maximum tiered match about $133.33. Payroll rounding can create small differences from these rounded figures.

Contributing nothing in later paychecks can lose those paychecks' matches when the plan matches separately each pay period and does not reconcile annually. An annual true-up may correct that difference, but its terms and eligibility are plan-specific. The IRS explicitly warns administrators that payroll-period calculations must still honor annual matching terms when those are what the plan promises.

Keep contribution limits and ownership separate

The 2026 general employee elective-deferral limit is $24,500. Catch-up rules can permit more for eligible older workers. Employer matching does not consume that employee limit, although a separate overall contribution limit applies. Traditional and Roth employee deferrals share the employee limit; switching tax treatment does not create a second allowance.

Vesting answers a different question: how much employer money you keep when you leave. Your own contributions are yours; employer contributions may vest over time. If the example's $3,200 match is only 40% vested when you leave, $1,280 of that contribution is vested, before considering attributable investment gains or losses.

Turn the result into a payroll decision

Compare your year-to-date eligible pay, employee deferrals and employer deposits with the plan formula. Before changing your election, check payroll processing deadlines, expected bonus payments and the remaining paychecks. A correct annual percentage is not enough if the election takes effect late.

Capturing a match establishes a contribution amount, not a retirement date. Use the sample household demo to see the larger savings timeline and the retirement calculator for a focused estimate. This explanation is educational; your administrator must resolve plan-specific entitlement questions.

Tiered matching

Eligible annual pay
$80,000
Employee contribution
5%, or $4,000
Match
100% of first 3%; 50% of next 2%

$3,200 employer match; $7,200 combined contributions

$2,400 + $800 = $3,200. Assumes full-year eligibility and no payroll-timing loss; vesting is separate.

Related free calculators

Methodology

See how Meridary checks calculator figures, tests the planning engine, states model limits, and records corrections on the validation methodology page.

Sources

This is an educational estimate, not tax or financial advice. Figures reflect the law year shown and the inputs you provide. Consult a qualified professional before acting.