Vesting is the schedule that determines when employer-contributed match dollars become permanently yours. Your own contributions are always 100% vested. Match dollars may vest immediately (Safe Harbor plans) or gradually over 3–6 years (graded or cliff vesting). Unvested match is forfeited if you leave before it vests.

401(k) Match Calculator

See how much free employer match you earn, whether you're leaving money on the table, and how matched contributions compound over time.

Your Plan

Quick start — common match formulas

Annual Salary ($)

Your Contribution (% of salary)

The percent of each paycheck you defer into your 401(k).

Match Formula Type

Employer Match Rate (%)

100% = a full dollar-for-dollar match; 50% = fifty cents per dollar.

Match Limit (% of salary)

Your employer matches your contributions only up to this percent of salary.

Match Dollar Cap ($)

Employer matches at the rate above, but never more than this many dollars per year.

Pay Frequency

Years to Retirement

Expected Return (%)

I'm age 50 or older (higher IRS catch-up limit)

Employer Match Per Year

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Free employer money

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Money Left on the Table

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Total Into 401(k) / Yr

—

Your Contribution / Yr

—

Match Per Paycheck

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Contribute This % for Full Match

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Max Match Available

—

Matched vs Unmatched Growth

Both lines assume the same contributions and return. The gap between them is pure employer money compounding for you — dollars you never had to earn.

Projected Balance

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From Your Contributions

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From Employer Match

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Match's Share of Balance

Balance Over Time — With vs Without Employer Match

Common Employer Match Formulas

100% up to X% (full / dollar-for-dollar)

The employer matches every dollar you contribute, up to X% of your salary. The most generous common formula. To capture it all, contribute at least X%.

match = salary × min(yourPct, X%) × 100%

50% up to Y% (partial)

The employer adds fifty cents per dollar on the first Y% of pay you contribute — so a "50% up to 6%" plan tops out at 3% of salary in match. Half-match plans are extremely common.

match = salary × min(yourPct, Y%) × 50%

Tiered / Safe Harbor (100% on first 3% + 50% on next 2%)

A two-step schedule. The IRS "Safe Harbor" match — 100% on the first 3% plus 50% on the next 2% — fully matches at a 5% contribution and exempts the plan from certain nondiscrimination tests. Safe Harbor matches are typically immediately 100% vested.

match = (3% × 100% + 2% × 50%) × salary = 4% of salary at 5%+ contribution

Dollar-capped match

The employer matches at a stated rate but never contributes more than a fixed dollar amount per year (e.g. "50% of contributions up to $5,000"). Once you contribute enough to hit the cap, extra contributions earn no additional match.

match = min(salary × yourPct × rate, dollarCap)

Why "money left on the table" matters

If your contribution percentage is below the level needed for the full match, you forfeit the un-earned employer dollars every single year — and you also lose decades of compounding on them. Raising your contribution to the match cap is usually the single highest-return move available in personal finance.

left on table = max match − your match

✓ Verified Last reviewed June 2026 · Next review January 2027

Contribution limits reflect the 2026 IRS elective-deferral limits — $24,500 employee deferral plus an $8,000 age-50 catch-up (the standard annual cost-of-living adjustment to IRC §402(g) / §414(v), announced November 2025). The employer match falls under the separate, higher §415(c) overall limit and is not capped by the employee figure. Growth uses the standard future-value-of-an-annuity formula.

Sources & references

IRS — 401(k) Plans: Contribution limits (IRC §402(g), §414(v), §415(c))
IRS Publication 525 — Taxable and Nontaxable Income (employer contributions)
U.S. Dept. of Labor / EBSA — "What You Should Know About Your Retirement Plan" (vesting)
IRS — 401(k) Plan Safe Harbor matching contribution rules

Not financial or tax advice. This tool provides educational estimates. Employer match formulas, vesting schedules, and true-up provisions vary by plan — check your Summary Plan Description. Projected balances assume a constant return and contribution; actual results vary with markets, raises, and IRS limit changes. Consult a qualified financial planner (CFP®) for personalized guidance.

5 min read 3 steps 6 terms 3 examples 7 FAQs match = salary × min(yourPct, capPct)/100 × matchRate/100

An employer 401(k) match is one of the few guaranteed returns in personal finance.

Enter your salary and contribution

Type your annual salary and the percent of pay you contribute to your 401(k). The calculator starts with realistic defaults ($70,000 salary, 6% contribution) so you see a meaningful result immediately.

Pick your employer's match formula

Choose Simple (e.g. 100% up to 6%), Tiered/Safe Harbor (100% on the first 3% plus 50% on the next 2%), or a Dollar-capped match. Use the Quick-start chips to load the most common formulas in one click, then adjust the rate and limit to match your plan.

Read the result and check the growth tab

The result card shows your employer match, any free money left on the table, and the contribution rate needed to capture the full match. Open the Growth Projection tab to see how the matched dollars compound over your years to retirement versus contributing alone.

Simple match (X% up to Y% of salary)

match = salary × min(yourPct, capPct)/100 × matchRate/100

yourPct = your contribution percent, capPct = the salary % the employer matches up to, matchRate = the match rate (100% for dollar-for-dollar, 50% for a half match). Contributing above capPct earns no extra match.

Tiered (Safe Harbor) match

match = Σ (tierRate_i/100 × min(remainingPct, tierWidth_i)/100 × salary)

Each tier matches a rate on the next band of your contribution. Classic Safe Harbor = 100% on the first 3% + 50% on the next 2%, fully matched at a 5% contribution (a 4%-of-salary employer contribution).

Money left on the table

leftOnTable = max(0, maxMatch − yourMatch)

maxMatch is the employer match you would earn by contributing exactly enough to fully capture it. Any positive value is free employer money you forfeit each year by under-contributing.

Long-term growth (future value of an annuity)

FV = PMT × ((1 + r)^n − 1) / r

PMT = annual contribution (your portion or the match), r = expected annual return as a decimal, n = years to retirement. Applied separately to your contributions and the match so you can see each portion's growth.

Reviewed by Calculover Editorial Review Updated 2026-06-14 3 sources Methodology & limitations

Editorial accountability

Author: {{^authorProfileUrl}}Calculover Editorial Team{{/authorProfileUrl}} - Personal finance content

Owner: Calculover Editorial Team - Editorial owner

Reviewer: Calculover Editorial Review - Source and limitation review

Last reviewed: 2026-06-14

Last verified: 2026-06-14

Data effective: 2026-01-01

Methodology

Employer match is computed from the plan formula (simple, tiered/Safe Harbor, or dollar-capped) applied to the user's salary and contribution percentage. Long-term growth uses the standard future-value-of-an-annuity formula applied separately to the employee and employer portions. IRS elective-deferral limits ($24,500 employee / $8,000 age-50 catch-up for 2026) are the standard annual cost-of-living adjustments under IRC §402(g) and §414(v); the employer match is governed by the separate §415(c) overall limit.

Assumption: Salary, contribution percentage, and the employer match formula remain constant over the projection horizon.

Assumption: Investment returns compound annually at the entered rate, with contributions modeled as an end-of-year ordinary annuity.

Assumption: The employee contribution is capped at the 2026 IRS elective-deferral limit; the employer match is not reduced by that limit.

Limitations & guidance

The tool does not model vesting schedules, plan-specific true-up rules, raises, or mid-career contribution changes.

Actual returns vary; the projection is an estimate, not a guarantee, and IRS limits change yearly.

Some plans use payroll-period or hours-based match mechanics that differ from the simplified annual model used here.

Professional guidance: This calculator is for educational purposes only and is not financial, legal, or tax advice. Match formulas, vesting, and limits vary by plan and change over time — consult your plan's Summary Plan Description and a qualified financial planner (CFP®) before making decisions.

Primary sources

401(k) Plans — Contribution limits (IRC §402(g), §414(v), §415(c)) - Internal Revenue Service

401(k) Plan Safe Harbor matching contributions - Internal Revenue Service

What You Should Know About Your Retirement Plan (vesting) - U.S. Department of Labor, Employee Benefits Security Administration

Employer match Money your employer contributes to your 401(k) based on how much you contribute — typically a percentage of your salary up to a cap. It is compensation paid on top of your wages and is effectively free money.

Match limit (cap) The maximum amount of your salary the employer will match against, usually stated as a percent of pay (e.g. 6%). Contributing beyond the cap earns no additional match.

Vesting The schedule that determines when employer match dollars become permanently yours. Your own contributions are always 100% vested; match may vest immediately or gradually over several years. Unvested match is forfeited if you leave early.

Safe Harbor match A specific IRS-approved match formula (commonly 100% on the first 3% + 50% on the next 2%) that exempts a plan from certain nondiscrimination tests. Safe Harbor matches are typically immediately and fully vested.

True-up An end-of-year employer reconciliation that pays any match you would have earned if contributions were spread evenly. Without a true-up, front-loading contributions and hitting the IRS limit early can cause you to miss match in later paychecks.

Elective-deferral limit The IRS cap on how much you can personally contribute to a 401(k) in a year ($24,500 in 2026, plus an $8,000 catch-up at age 50+). The employer match is separate and does not count against this limit.

🎯

Maya

Capturing the full match

Salary $70,000 Your contribution 6% Match 100% up to 6%

Maya contributes 6% ($4,200) and her employer matches it dollar-for-dollar — a $4,200 match with $0 left on the table. Her total annual contribution is $8,400, half of it free. Over 30 years at 7%, the match alone grows to roughly $397,000, about half of her projected balance.

⚠️

Devon

Leaving money on the table

Salary $70,000 Your contribution 3% Match 100% up to 6%

Devon only contributes 3% ($2,100), so his match is just $2,100 — he leaves $2,100 of free employer money behind every year. Bumping his contribution to 6% would double the match. Over 30 years, that forfeited $2,100/yr is roughly $198,000 of lost retirement wealth.

🛟

Priya

Safe Harbor tiered plan

Salary $70,000 Your contribution 5% Match 100%/3% + 50%/2%

Priya's plan matches 100% on her first 3% ($2,100) and 50% on the next 2% ($700) — a $2,800 match, fully captured at a 5% contribution. Contributing more than 5% adds to her own savings but earns no extra match, and her Safe Harbor match is immediately 100% vested.

An employer 401(k) match is one of the few guaranteed returns in personal finance. This guide explains how match formulas work, why capturing the full match should usually be your first savings priority, and the vesting and timing details that can quietly cost you money.

Why the match is free money

When your employer matches your 401(k) contributions, they're handing you extra compensation that only exists if you participate. A 100% match up to 6% of salary is an instant, guaranteed 100% return on every dollar you contribute within that band — before the market does anything. No stock, bond, or savings account reliably offers that. That's why financial planners almost universally rank "contribute enough to get the full match" as the first move, ahead of extra debt payoff (except very high-interest debt) and taxable investing.

How to read your match formula

Match formulas come in three common shapes. A simple match pays a rate (often 100% or 50%) on your contributions up to a salary cap — "50% up to 6%" tops out at 3% of pay. A tiered or Safe Harbor match steps the rate down across bands, like 100% on the first 3% plus 50% on the next 2% (full match at 5%). A dollar-capped match pays a rate but never more than a fixed yearly dollar amount. This calculator handles all three and tells you the exact contribution percentage you need to capture every available dollar.

Vesting, true-ups, and traditional vs Roth

Two details can erode your match. Vesting determines when match dollars become yours — Safe Harbor plans vest immediately, but graded schedules can take 3–6 years, and unvested match is forfeited if you leave early. True-up provisions matter if you front-load contributions: without one, hitting the IRS elective-deferral limit early can stop your match in later paychecks, so spreading contributions evenly is safer. Finally, the match is always made with pre-tax dollars into a traditional (pre-tax) bucket even if your own contributions are Roth — a detail worth knowing for retirement tax planning, though it never changes whether capturing the match is worth it.

The match does not count toward your contribution limit

A common misconception is that the employer match eats into how much you can personally contribute. It doesn't. Your elective-deferral limit ($24,500 in 2026, plus an $8,000 catch-up at age 50+) applies only to your own contributions. The match falls under a separate, much larger overall limit (IRC §415(c), $70,000+ in 2026 including all sources). So you can max your own deferral and still receive the full match on top.

What does "100% match up to 6%" mean?+

Your employer contributes one dollar for every dollar you contribute, but only on the first 6% of your salary. Earn $70,000 and contribute at least 6% ($4,200), and the employer adds the full $4,200. Contributing more than 6% earns no extra match; contributing less leaves part of that free money unclaimed.

Is the 401(k) match really free money?+

Yes. The match is additional compensation your employer pays into your 401(k) when you contribute. Capturing the full match is effectively a guaranteed 50–100% instant return on those dollars — a return no market investment reliably beats. The only catch is vesting: you may need to stay employed for a few years to fully own the match.

Does the employer match count toward my contribution limit?+

No. The employee elective-deferral limit ($24,500 in 2026, plus an $8,000 catch-up at age 50+) applies only to your own contributions. The employer match falls under a separate, higher overall limit (IRC §415(c)), so the match never reduces how much you can personally defer.

What is vesting and how does it affect my match?+

Vesting is the schedule that decides when employer match dollars become permanently yours. Your own contributions are always fully vested. Match dollars may vest immediately (common with Safe Harbor plans) or gradually over 3–6 years. If you leave before the match vests, the unvested portion is forfeited — check your plan's Summary Plan Description.

Should I always max the match before anything else?+

For most people, yes. Contributing enough to capture the full employer match is widely considered the first priority in personal finance — ahead of extra debt payoff (except very high-interest debt) and taxable investing — because the match is an immediate, guaranteed return. After the match is maxed, the next best dollar depends on your interest rates, tax bracket, and goals.

What happens if I contribute more than the match cap?+

Contributing above the match cap is still fine — those dollars grow tax-advantaged in your 401(k) — but they earn no additional employer match. The match stops at the cap. Many savers contribute to the cap first to grab the full match, then direct extra savings to an IRA or back to the 401(k) depending on their plan's fees and fund options.

Why might I miss match even if I contribute enough?+

If you front-load contributions and hit the annual IRS limit before December, plans without an annual "true-up" stop matching once you stop contributing — so you can miss match in the final paychecks of the year. Spreading contributions evenly across all pay periods avoids this. Ask your plan whether it offers a true-up.

401(k) Match Calculator

100% up to X% (full / dollar-for-dollar)

50% up to Y% (partial)

Tiered / Safe Harbor (100% on first 3% + 50% on next 2%)

Dollar-capped match

Why "money left on the table" matters

How to Use This Calculator

Enter your salary and contribution

Pick your employer's match formula

Read the result and check the growth tab

Formula & Methodology

Trust, Methodology & Sources

Key Terms Explained

Real-World Examples

Maya

Devon

Priya

401(k) Match: Don't Leave Free Money on the Table

Why the match is free money

How to read your match formula

Vesting, true-ups, and traditional vs Roth

The match does not count toward your contribution limit

Frequently Asked Questions

401(k) Match Calculator

100% up to X% (full / dollar-for-dollar)

50% up to Y% (partial)

Tiered / Safe Harbor (100% on first 3% + 50% on next 2%)

Dollar-capped match

Why "money left on the table" matters

How to Use This Calculator

Enter your salary and contribution

Pick your employer's match formula

Read the result and check the growth tab

Formula & Methodology

Trust, Methodology & Sources

Key Terms Explained

Real-World Examples

401(k) Match: Don't Leave Free Money on the Table

Why the match is free money

How to read your match formula

Vesting, true-ups, and traditional vs Roth

The match does not count toward your contribution limit

Frequently Asked Questions

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