An employer match is the only place in personal finance where money doubles the moment it leaves your paycheck. Most plans pay a percentage of what you contribute, up to a percentage of your salary, and every dollar below the threshold is match money you forfeit for good. Enter your pay, your contribution rate, and your plan's formula, and this calculator totals your annual savings, projects the balance at retirement, and prices the gap between what you save and what you could be saving.
The employer match is a contractual raise that most workers have to opt into. Vanguard's How America Saves 2026 report, covering nearly 5 million participants in its administered plans, found matching contributions rising to a record 4.7 percent of pay on average, and nearly two-thirds of Vanguard plans now automatically enrolling new hires at 4 percent of pay or higher. Yet plenty of savers still sit below their plan's threshold, whether by default, by budget pressure, or simply because nobody ever showed them the arithmetic.
That arithmetic is unforgiving. A match of 100 percent up to 4 percent pays a guaranteed 100 percent return on the matched dollars in the instant they are contributed. No stock, bond, or fund offers anything comparable with any certainty, and every year you contribute below the threshold, the skipped match is gone permanently. This calculator quantifies that trade in three ways: what you and your employer each contribute now, what the combined stream grows into by retirement, and what contributing short of the match cap actually costs.
Variables in plain terms. Your % is the share of each paycheck you defer. Match limit % is how much of your salary the plan is willing to match, and Match rate is how many cents the employer pays per dollar you put in. The calculator applies the 2026 statutory caps from IRS Notice 2025-67: elective deferrals stop at $24,500, and the compensation used to compute the match stops at $360,000. Future value compounds monthly at the expected return, the same convention every calculator on this site uses.
Take the default setup: a $75,000 salary, a 6 percent contribution, and a match of 100 percent on the first 4 percent of pay. You defer $4,500 a year. The plan matches the first $3,000 of your contributions dollar for dollar, because 6 percent clears the 4 percent threshold, so employer money adds another $3,000 and $7,500 lands in the account each year, half of it contributed by someone else.
Grow that stream at 7 percent for 20 years and the balance reaches $317,210. Your own $4,500 a year accounts for $190,326 of it; the match stream, $3,000 a year on its own, compounds to $126,884. In other words, of everything in the account, 40 percent is money you never earned on a paycheck. Now cut the contribution to 2 percent, a common auto-enrollment default. Total annual savings drop to $3,000, the projected balance drops to $126,884, and $1,500 of free match goes unclaimed every single year. That unclaimed stream compounds to $63,442 by year 20. Raising the rate one point of salary, from 2 to 3 percent, costs $750 of take-home pressure but adds $1,500 of annual savings once the match responds, worth $63,442 more by year 20. Past the 4 percent threshold the doubling stops, and each extra point of pay adds only its own $750, or $31,721 over the same horizon.
| Your contribution | You put in | Match earned | Total per year | Balance in 20 years |
|---|---|---|---|---|
| 2% | $1,500 | $1,500 | $3,000 | $126,884 |
| 4% (match cap) | $3,000 | $3,000 | $6,000 | $253,768 |
| 6% (default) | $4,500 | $3,000 | $7,500 | $317,210 |
| 10% | $7,500 | $3,000 | $10,500 | $444,094 |
| 15% | $11,250 | $3,000 | $14,250 | $602,699 |
The table holds the defaults fixed and moves only the contribution rate. Two breakpoints stand out. The first is 4 percent, where the match maxes out; every dollar beyond that point comes only from your own pocket, valuable for retirement but no longer doubled. The second is the gap between the 2 and 4 percent rows: $2,000 of extra annual saving buys $10,000 of annual contributions once the match responds, which is why closing a match shortfall outperforms every other savings move at equal effort. High earners should also watch the statutory ceilings: at a $500,000 salary, 6 percent pay would be $30,000, but the $24,500 deferral cap trims it, and the match computes on only the first $360,000 of pay.
Capturing the match is step one of a retirement plan, not the whole thing. The SIMPLE vs 401k calculator compares the two plan types head to head, where different contribution ceilings and employer commitments drive a $42,295 gap over 20 years for identical saver behavior. Once the match is maxed and other dollars are flowing in, the compound interest calculator projects any contribution schedule over any horizon. And the retirement withdrawal calculator works the far end, showing what the balance you are building today can safely pay out later. Contribute, grow, withdraw: the match makes the first stage almost free.
A match is only yours on the day the vesting schedule says so. Your own contributions are always 100 percent vested immediately; the schedule applies to employer money. Federal law caps how slow a plan can be. Under cliff vesting the longest schedule allowed is three years of service, and leaving at two years and eleven months forfeits every matched dollar while staying one more month keeps them all. Under graded vesting the slowest legal schedule reaches 20 percent vested after two years and adds 20 percent each year, hitting 100 percent at year six. Plans established after December 29, 2022 face a tighter two-year cap on matching cliff schedules under SECURE 2.0, and safe harbor arrangements are stricter still: traditional safe harbor matches vest immediately, while QACA versions top out at two years. If you are job hunting with a match in play, the plan document's vesting line can be worth more than a raise of similar size.
Two plan features change the arithmetic for specific groups. Since the 2024 plan year, SECURE 2.0 has let employers base matching contributions on qualified student loan payments, so a borrower who cannot afford to defer can still collect the match at the same rate and on the same vesting schedule, with an annual payment certification in place of contributions (IRS Notice 2024-63). Adoption is optional and still uncommon. And where the match formula is per-paycheck, employees who front-load contributions early in the year can lose match dollars in later pay periods unless the plan has a true-up provision, an annual reconciliation that tops the match back up to the formula. Check for the words "true-up" in your plan document before spreading contributions unevenly.
The plan formula is not the only ceiling. Two federal rules can shrink what actually lands in your account, and both bite in 2026.
The high-earner test. A plan has to prove its benefits do not tilt toward senior staff, so it runs nondiscrimination tests every year. Anyone whose prior-year pay exceeded the highly compensated employee threshold, which is $160,000 for 2026 under IRS Notice 2025-67, sits on the tested side. When rank-and-file participation runs low, the plan fails and has to refund part of the high earners' deferrals after year end. The match those deferrals earned comes back too, because the match was computed on deferrals that no longer stand. A saver at $180,000 counting on a 6 percent deferral to collect a 4 percent match can end up with part of that deferral refunded, and the two-point gap on that salary is $3,600 of employer money that never arrives.
Catch-up contributions go Roth. SECURE 2.0 requires catch-up contributions to be made on a Roth basis for anyone whose prior-year FICA wages exceeded $150,000. That rule starts with the 2026 plan year, and the threshold was set at $150,000 in Notice 2025-67 after earlier guidance pointed at $145,000. If you are 50 or older and above that line, the extra $8,000 is no longer deductible, though it still counts toward your balance and still grows tax-free. A plan that has not added Roth capability cannot accept catch-up contributions from these employees at all, which is worth confirming before January.
Neither rule appears in a match formula, and neither shows up in a calculator that only reads the plan document. They are why two people on the same salary, in the same plan, can finish the year with different employer contributions.
An employer match is money your company adds to your 401k based on what you contribute. A typical formula pays 100 percent of your contributions up to 4 percent of salary, so a $75,000 earner who contributes 4 percent receives $3,000 of employer money on top of their own $3,000. Vanguard's How America Saves 2026 report put the average match among its plans at a record 4.7 percent of pay. The match is the fastest return available anywhere in personal finance: every dollar matched is an instant 100 percent gain before any investment growth.
No. Your own elective deferrals are capped at $24,500 for 2026 under the IRC Section 402(g) limit, and employer match never counts against it. The match does share a second, larger ceiling: total annual additions from all sources, including match, profit sharing, and after-tax contributions, are capped at $72,000 for 2026 under Section 415(c), per IRS Notice 2025-67. Catch-up contributions for savers 50 and older, $8,000 in 2026, count against neither limit.
You permanently forfeit the unmatched portion; it does not roll over and it does not come back later. In the default example, contributing 2 percent instead of 4 percent on a $75,000 salary leaves $1,500 of match unclaimed every year. Invested at 7 percent over 20 years, that missed money compounds to $63,442. No rational trade-off beats an immediate 100 percent return, so the standard advice holds: capture the full match first, then fund other priorities.
Vesting decides whether employer money is legally yours. Your own contributions are always 100 percent vested. The match follows your plan's schedule: cliff vesting makes nothing yours until a set date, then everything at once, while graded vesting transfers ownership in steps of 20 percent per year starting after two years. Federal law caps the slowest allowed schedules at a three-year cliff or a six-year graded track, and plans established after December 29, 2022 face a two-year cliff cap on matching contributions under SECURE 2.0. Check your plan document, because leaving a job just before a cliff date forfeits every unvested dollar.
Not always, and the difference matters. A formula of 100 percent up to 4 percent and a formula of 50 percent up to 6 percent both cap at the same $3,000 on a $75,000 salary, but the first reaches that cap when you contribute 4 percent while the second demands 6 percent. Savers below the threshold collect very different amounts: at a 4 percent contribution rate the first pays $3,000 and the second only $1,500. Front-loading contributions early in the year can also forfeit match in plans without a true-up provision, which reconciles the match after year-end.
Yes. The match is calculated the same way whether you defer pre-tax or Roth, and it lands in your account either way. The default is that employer match itself is pre-tax money, taxed as ordinary income when you withdraw it in retirement. Since 2023, plans have been permitted to make matching contributions Roth as well, provided the plan document allows it and you have already vested. Ask your recordkeeper which treatment your plan uses, because a Roth match changes the tax character of a meaningful slice of your balance.
A true-up is an annual reconciliation that protects employees who contribute unevenly across the year. When the match formula is applied per paycheck, someone who contributes heavily in the first months can hit a personal ceiling early and stop receiving match dollars in later pay periods, even though their annual total would have earned a full match. A true-up provision compares the match actually paid against the match the year-end total deserves and deposits the difference. Without one, front-loading your contributions can quietly cost real match money, which is why the strategy of maxing out in January only works at plans whose documents include the words "true-up".
Possibly, and this is one of the newer features in the market. Since the 2024 plan year, SECURE 2.0 has allowed employers to treat qualified student loan payments as if they were elective deferrals for matching purposes, so a borrower who cannot afford to contribute can still collect employer match at the same rate and on the same vesting schedule as everyone else (IRS Notice 2024-63). The feature is optional for employers, so check whether your plan has adopted it. You certify your loan payments annually, and the match lands in your retirement account, not toward the loan itself.
All calculation logic on this page is implemented from the primary documents below. Each one is listed with the figure it supplies, so any rate or threshold in the result can be traced back to its published source.
Contribution limits and plan rules for the current tax year on every page.