401(k) Match Optimizer

401(K) FINANCE RETIREMENT
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By Checked against sources by , Founder & Architect, RECATOOLS Published Updated Last reviewed

Find the 401(k) contribution that captures your full employer match, with 2026 IRS limits, age 60-63 catch-up, vesting and a retirement projection.

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401(k) Match Optimizer

📍 Applies to: United States

⚠ Disclaimer: Estimates only. Not investment advice. RECATOOLS is not a licensed or registered investment adviser in any jurisdiction. Past performance does not guarantee future results. Trading and investing carry risk of partial or total loss of capital.

Your salary & pay schedule

$

Employer match formula

What % of YOUR contribution your employer matches
Maximum salary % they'll match up to
Reads as: employer matches 100% of your contributions up to 4% of salary. Common examples: 100% × 4%, 50% × 6%, 100% × 3% + 50% × next 2%.

Vesting schedule

Retirement projection inputs

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How to use the 401(k) Match Optimizer

Enter your salary and pay schedule

Your gross annual salary (before tax). Pay period determines how the per-paycheck contribution number is shown — biweekly is most common in the US (26 paychecks/year). Years at company drives the vesting calculation: how much of your employer's match you actually own if you leave.

Enter your employer's match formula

Two numbers from your benefits booklet: the match rate (what % of YOUR contribution they match — usually 100% or 50%) and the match cap (the maximum % of salary they'll match up to — usually 3-6%). Example: "100% match up to 4% of salary" → match rate = 100, match cap = 4. "50% match up to 6%" → match rate = 50, match cap = 6. The minimum contribution % to capture full match is ALWAYS the match cap (4% or 6% in those examples).

Pick your vesting schedule

Immediate means the employer money is yours from day one. A 3-year cliff means none of it is yours until three years of service, then all of it. A 6-year graded schedule vests 20% after two years and 20% more each year until 100% after six. Those are the two schedules in the IRS table; your plan document says which one applies. The "unvested" figure is what you would leave behind if you left today.

Compare min-for-match vs maxing out

The table compares contributing just enough to get the full match with contributing the 2026 maximum: $24,500, plus $8,000 catch-up from age 50 or $11,250 at ages 60 to 63 if you tick the box. Capture the match first; whether to go further depends on your debts, savings and other accounts.

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The employer 401(k) match — the closest thing to free money in personal finance

An employer match is part of your pay that you only receive if you contribute yourself. With "100% up to 4% of salary" on an $85,000 salary, contributing $3,400 brings another $3,400 from your employer. This calculator works out the contribution that captures all of it, how much of the match you would keep if you left, and what the two strategies could grow to.

How match formulas work

A match has two parts, a rate and a cap. "100% up to 4%" adds a dollar for each dollar you contribute, on the first 4% of pay. "50% up to 6%" adds 50 cents per dollar on the first 6%. Both cost the employer at most 4% or 3% of pay, but in each case you must contribute the whole cap to receive the whole match. So the minimum contribution is the cap, whatever the rate.

The 2026 limits

IRS Notice 2025-67 sets the 2026 figures. You can defer up to $24,500 of your own pay. From age 50 a catch-up adds $8,000, and for people who reach 60, 61, 62 or 63 in 2026 it is $11,250 instead. Employee and employer contributions together are limited to $72,000, with catch-up contributions on top. A plan can count pay only up to $360,000, so above that salary the match stops growing: a 6% match on $500,000 is at most $21,600, not $30,000. This calculator applies all of these.

"An employee's own contributions to the plan … are always 100% vested, or owned, by the employee." IRS vesting rules

Vesting

Your own contributions are always yours. The employer's can be subject to vesting, and the IRS describes two common schedules for 401(k) plans: 100% after three years of service, or a graded schedule that reaches 20% after two years and 100% after six. Plans can also vest immediately. If you leave before you are fully vested, the unvested part goes back to the plan. Check your plan's schedule before you resign; a few months can make a difference.

Roth matching

Since SECURE 2.0, a plan may let you take the match as Roth money. The IRS explains in IRS Notice 2024-2 that a Roth match is not excluded from your income: you pay tax on it in the year it is made, and qualified withdrawals later are tax-free. Whether that suits you depends on your tax rate now compared with the rate you expect in retirement.

Outside the US

Many countries make employer pension contributions compulsory rather than matched. In Singapore, the CPF Board sets the rates: from 1 January 2026 an employer pays 17% of wages and the employee 20% for workers aged 55 and below earning over $750 a month. There is no contribution to choose, so nothing to leave unclaimed.

The 2026 limits, how a match is capped, and how vesting works

01

The 2026 limit on your own 401(k) contributions is $24,500, up from $23,500 in 2025 (Notice 2025-67).

02

From age 50 a catch-up of $8,000 is allowed on top in 2026.

03

People who reach 60, 61, 62 or 63 in 2026 can catch up by $11,250 instead of $8,000.

04

Employee and employer contributions together are limited to $72,000 in 2026; catch-ups sit on top.

05

A plan can count pay only up to $360,000 in 2026, which caps the match for high earners.

06

The minimum contribution for the full match is the match cap, whatever the match rate.

07

Your own contributions are always 100% vested, according to the IRS.

08

The IRS vesting table shows a 3-year cliff or a 6-year graded schedule starting at 20% after two years.

09

A Roth match, allowed since SECURE 2.0, is taxed as income in the year it is made.

10

In Singapore an employer pays 17% of wages into CPF for workers aged 55 and below in 2026.

Frequently Asked Questions

  • The match cap. With "100% up to 4% of salary" contribute at least 4%; with "50% up to 6%" contribute at least 6%. The match rate changes how many dollars your employer adds, not how much you must contribute to get all of them.

  • No. The $24,500 limit for 2026 covers only your own elective deferrals. Employer contributions count towards the separate $72,000 limit on all contributions to your account, along with your own deferrals; catch-up contributions are on top of both. A plan can also count no more than $360,000 of pay when it works out the match.

  • Vesting is how much of your employer's contributions you own. Your own money is always 100% yours. Employer money may vest all at once after three years, or 20% after two years rising to 100% after six, or immediately; your plan document says which. Leave before you are fully vested and the rest goes back to the plan.

  • Capture the full match first, because no other contribution adds money from someone else. Beyond that it depends on your situation: expensive debt, an emergency fund and other tax-advantaged accounts all compete for the same money. The projection table shows what the extra contributions could grow to at the return you enter, which is an assumption, not a forecast.

  • Your choice between Roth and traditional contributions does not change whether you get the match. Since SECURE 2.0 a plan may let you take the match itself as Roth money, in which case, the IRS explains in Notice 2024-2, it is included in your income for that year. Roth suits you better if you expect a higher tax rate in retirement than now.

  • You lose the unvested part. On a 3-year cliff with two years of service you keep none of the employer money; on the 6-year graded schedule with four years you keep 60%. Check your vesting date before you resign.

  • Many plans match each paycheck separately. If you reach the $24,500 limit early in the year, you stop contributing and the per-paycheck match can stop with it. A true-up is a year-end top-up some plans make so that you still receive the full annual match. If your plan has none, spread your contributions across the whole year.

  • It uses the gap between the $72,000 total limit and what you and your employer already contribute. If your plan allows after-tax contributions and lets you convert them to Roth while still employed, you can contribute after-tax money into that gap and convert it. Only some plans allow both steps; ask your plan administrator.

  • Most of the region uses compulsory employer contributions rather than matches. In Singapore, the CPF Board sets the rates: from 1 January 2026 an employer pays 17% and the employee 20% of wages for workers aged 55 and below earning over $750 a month, with lower rates at older ages. Malaysia's EPF and Hong Kong's MPF are also compulsory schemes; check their own sites for the current rates.

  • No. All calculation happens entirely in your browser via JavaScript. Open DevTools → Network and watch — there's zero outbound traffic. Your salary, match formula, and personal details never leave your device.

Method & sources

What this tool implements

  • Notice 2025-67 limits: $24,500 deferral, $8,000 catch-up, $11,250 for ages 60-63, $72,000 annual additions, $360,000 compensation. The tool had only the age-50 catch-up and matched on the full salary: at $500,000 and 6% it showed $30,000 of match where the plan can give at most $21,600. The minimum-for-match contribution is now cap% of counted pay too ($21,600, not $30,000). 19 kernel tests.
  • Vesting from the IRS table (3-year cliff; 20% after two years to 100% after six). SECURE 2.0 §604 per Notice 2024-2: a Roth match is not excludable from gross income, so it is taxed in the year made; the page had said it 'grows tax-free forever'.
  • Removed as unsourced: Vanguard '31% miss the match / $1,336' figures, average match and forfeiture amounts, 'most common formula', '50% of plans offer true-up', '20% support mega backdoor', auto-enrolment '3-6%', and EPF/MPF/UK rates. CPF 17%/20% kept, verified on the CPF Board page.

Sources

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