For 2026, an employer can contribute up to $72,000 to a single employee’s 401(k), but that figure is the combined ceiling for everything going into the account: your own salary deferrals, the employer match, and any profit-sharing deposit. If you defer nothing yourself, the employer could put in the full $72,000. If you defer the maximum $24,500, the employer’s remaining room is $47,500. How much can an employer contribute to a 401(k) in your specific case comes down to what you’re putting in, what your salary is, and what the plan document commits the employer to.
The $72,000 Combined Annual Addition Limit
Every dollar entering your 401(k) in a plan year counts toward one shared ceiling the IRS calls the annual addition. For 2026, that ceiling is $72,000, up from $70,000 in 2025.1Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions Three things count against it:
- Your elective deferrals (pre-tax or Roth salary deductions), capped at $24,500 for 2026.
- Employer matching contributions tied to what you defer.
- Employer non-elective contributions, such as profit-sharing, made whether or not you defer.
Because the $72,000 is shared, the employer’s maximum is $72,000 minus whatever you contribute yourself. The statute treats a plan as disqualified if contributions for any participant exceed the annual addition ceiling, and disqualification hits the whole plan, not just the over-funded account.2Office of the Law Revision Counsel. 26 USC 415 – Limitations on Benefits and Contribution Under Qualified Plans That’s why employers watch this number carefully.
Catch-Up Contributions for Older Workers
One exception lets your total exceed $72,000: catch-up contributions for employees 50 and older. These sit outside the annual addition limit.
- At age 50 and older, you can defer an additional $8,000 in 2026, bringing the overall maximum (with employer contributions) to $80,000.1Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions
- Between ages 60 and 63, a SECURE 2.0 provision raises the catch-up to $11,250, pushing the overall maximum to $83,250 for employees in that narrow window.3Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
Catch-ups are employee deferrals only. Your employer cannot make a catch-up deposit for you, but catch-up amounts don’t eat into the $47,500 of employer room either. A 62-year-old deferring the full $35,750 available at that age still leaves the employer able to add up to $47,500 in matching and profit-sharing.4Internal Revenue Service. Retirement Topics – Catch-Up Contributions
The $360,000 Compensation Caph2>
Even when the dollar limits leave room, there’s a separate cap on the salary an employer can plug into its matching or profit-sharing formulas. For 2026, only the first $360,000 of an employee’s compensation counts.1Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions The rule sits in section 401 of the tax code and adjusts annually for inflation.5Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
This matters for high earners. An executive making $500,000 at a plan offering a 5% match receives the match calculated on $360,000, capping it at $18,000 rather than $25,000. Being classified as a highly compensated employee (anyone earning more than $160,000 from the employer in the prior year, or owning more than 5% of the business) can also cap your contributions if the plan fails its annual nondiscrimination tests.1Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions A failed test can force refunds of excess deferrals and matches to HCEs.6Internal Revenue Service. 401(k) Plan Fix-It Guide – The Plan Failed the 401(k) ADP and ACP Nondiscrimination Tests
The 25% Employer Deduction Ceiling
There’s also a workforce-wide cap on what the employer can deduct. Total employer contributions across all participants (match plus profit-sharing) generally cannot exceed 25% of the total compensation paid to all eligible employees.7Office of the Law Revision Counsel. 26 USC 404 – Deduction for Contributions of an Employer to an Employees Trust or Annuity Plan and Compensation Under a Deferred-Payment Plan A company with $2 million in eligible payroll can deduct up to $500,000 in employer contributions.
Employee elective deferrals don’t count against this 25%. If the employer contributes more than it can deduct, the excess carries forward to future years but triggers a 10% excise tax on Form 5330 each year until the excess is absorbed.8Office of the Law Revision Counsel. 26 USC 4972 – Tax on Nondeductible Contributions to Qualified Employer Plans
Safe Harbor Minimum Contributions
Employers can skip the annual nondiscrimination tests by adopting a safe harbor plan, which commits them to a minimum contribution formula. The safe harbor rule sets a floor rather than a ceiling, and it’s useful to know because it tells you what a safe harbor plan must contribute if you defer nothing or defer a little.
The employer chooses one of two structures. The basic match pays 100% on your first 3% of compensation plus 50% on deferrals between 3% and 5%. Alternatively, a non-elective contribution of at least 3% of compensation goes to every eligible employee whether they defer or not.9Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans An enhanced match works too, provided it’s at least as generous at every deferral level as the basic formula.10Internal Revenue Service. Operating a 401(k) Plan Safe harbor contributions are fully vested immediately.11Internal Revenue Service. 401(k) Plan Qualification Requirements
When the Employer’s Money Actually Becomes Yours
The maximum an employer can contribute is a different question from what you keep if you leave. Your own deferrals are always 100% yours. Employer contributions typically follow a vesting schedule, and federal law caps how slowly a plan can vest them.12Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
- Cliff vesting: 0% for the first three years, then 100% at year three.
- Graded vesting: 20% after two years of service, rising 20% each year until you’re fully vested at six years.
Plans can vest faster, and many do. Safe harbor contributions must vest on day one.13Internal Revenue Service. Retirement Topics – Vesting Leaving before you’re fully vested means forfeiting the unvested portion of the employer’s contributions.
Deposit Deadlines
Different contributions have different deadlines. Salary deferrals withheld from your paycheck must go into the plan as soon as they can reasonably be separated from company assets, with the Department of Labor setting an outer limit of the 15th business day of the month after the pay period. If the employer can process deposits faster, faster becomes the deadline.14U.S. Department of Labor. ERISA Fiduciary Advisor – What Are the Fiduciary Responsibilities Regarding Employee Contributions
Employer matching and profit-sharing deposits have more room. To claim the deduction for a given tax year, the employer must deposit those contributions by the due date of its federal tax return, including extensions.15Internal Revenue Service. Issue Snapshot – Deductibility of Employer Contributions to a 401(k) Plan Made After the End of the Tax Year For a calendar-year corporation filing Form 1120 with an extension, that means as late as October 15 of the following year. This is why profit-sharing contributions for a given year often don’t hit accounts until the following fall.