401(k) auto escalation is a plan feature that automatically raises the percentage of your salary going into your retirement account, usually by one percentage point per year, until it hits a ceiling your plan sets. If you started at 3%, next year you’re at 4%, then 5%, without any action on your part. For 401(k) plans established on or after December 29, 2022, this feature is now legally required under SECURE Act 2.0, with the rate climbing to at least 10% of pay. In older plans it’s optional but common. You keep the right to change your rate or turn the increases off at any time.
How the Yearly Increase Works
Your plan sets a starting contribution rate and a schedule for raising it. Most plans bump your deferral by 1% each year. The increase usually takes effect at the start of a new plan year or on your hire-date anniversary, and some employers time it to line up with annual raises so the change is less noticeable in your take-home pay.
Once the schedule is set, payroll handles the rest. You don’t file paperwork or approve each step. The recordkeeper recalculates your deferral percentage and adjusts your withholding automatically. Increases continue until your rate hits the plan’s cap, commonly 10% or 15% of compensation.
Your employer has to tell you in advance. Federal rules require a written notice at least 30 days but no more than 90 days before the start of each plan year, spelling out your current deferral rate, the upcoming increase, and your right to change it or opt out.1U.S. Department of Labor. Automatic Enrollment 401(k) Plans for Small Businesses If that notice never showed up, your employer may not be meeting its obligations.
Auto escalation almost always sits on top of automatic enrollment, the feature that signs you up at a default rate when you start a job. The IRS describes a common pattern in Qualified Automatic Contribution Arrangements: a 3% default that gradually rises to 6% over four years.2Internal Revenue Service. Retirement Topics – Automatic Enrollment One thing to check: the default contribution type is almost always pre-tax. If you want Roth 401(k) contributions, you have to elect that yourself, and auto escalation will then apply to whichever type you chose.
Whether the Rules Require It in Your Plan
Before 2025, auto escalation was optional. SECURE Act 2.0 changed that for newer plans. Any 401(k) or 403(b) established on or after December 29, 2022, must include both automatic enrollment and automatic escalation for plan years beginning after December 31, 2024.3Federal Register. Automatic Enrollment Requirements Under Section 414A
The statute, IRC Section 414A, sets specific guardrails:
- Initial default rate between 3% and 10% of compensation.
- Annual escalation of at least 1 percentage point per year of participation.
- Escalation cap of at least 10% but no more than 15%.3Federal Register. Automatic Enrollment Requirements Under Section 414A
Several plans are exempt from the mandate:
- 401(k) plans established before December 29, 2022.
- Businesses that normally employ 10 or fewer workers.
- Employers (and any predecessor) that have existed for less than three years.
- Government and church plans described in IRC Sections 414(d) and 414(e).
- SIMPLE 401(k) plans under Section 414A(c).3Federal Register. Automatic Enrollment Requirements Under Section 414A
Employers subject to the mandate have to adopt the required plan amendments by December 31, 2026. If you work for a mid-size or larger company that started its plan recently, the features are likely already in place.
Two Ceilings on Your Contributions
Auto escalation runs into two separate limits, and the lower one controls.
The first is your plan’s cap, set in the plan document. The most common cap is 10%, followed by 6% and 15%. Once your deferral reaches that number, automatic increases stop. You can always contribute more by making an affirmative election, but the automation won’t push you past the cap.
The second is the IRS annual dollar limit on deferrals. For 2026, that limit is $24,500.4Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 If you earn $200,000 and auto escalation raises your rate to 15%, your annual deferral would be $30,000, which exceeds the IRS limit. Most payroll systems stop withholding once you hit the annual cap, but it’s worth checking your pay stubs late in the year to avoid an over-contribution that would need to be corrected.
Older workers get more room. Employees 50 and older can defer an additional $8,000 in catch-up contributions for 2026. SECURE 2.0 introduced a higher catch-up limit for workers aged 60 through 63, at $11,250 for 2026, which brings their total possible deferral to $35,750.4Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Auto escalation doesn’t distinguish between regular and catch-up dollars. It simply raises your deferral percentage, and the recordkeeper handles the accounting.
How to Change or Turn Off the Increases
Auto escalation is automatic, but it isn’t mandatory from your side. Federal law gives you the right to opt out entirely or set your own contribution rate at any time. Under the QACA rules, the automatic deferral stops applying to you the moment you make an affirmative election, whether that election is zero, less than the default, or more.5Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
You have a few practical choices:
- Lock your rate at the current percentage so future automatic increases don’t apply.
- Reduce your rate to any percentage you choose, including below the current default.
- Set your deferral to 0% to stop all contributions.
- Set a rate higher than what auto escalation would reach on its own.
The change is made through your plan’s recordkeeper, the firm that administers the account (Fidelity, Vanguard, Empower, or similar). Log in to your participant portal and look for a section labeled “Contributions” or “Deferral Elections.” From there you can change your percentage, turn off automatic increases, or opt out. Most recordkeepers apply the change within one to two payroll cycles. Check your next pay stub to confirm the new withholding. If the change hasn’t shown up after a full pay period, contact HR or the recordkeeper. Payroll errors on deferral changes happen more often than you’d expect, and catching one early makes the fix simpler.
If your plan still uses paper, submit a salary deferral agreement to HR or the plan administrator listing your new rate and the effective date. Paper processing takes longer, so plan on at least one full pay cycle of lag.
One more thing to watch: some employers run periodic re-enrollment cycles that can sweep previously opted-out employees back into the plan at the default rate. If contributions reappear on your pay stub after you opted out, check whether a re-enrollment happened and exercise your opt-out again.
Getting Auto-Enrolled Money Back in the Early Window
If you were automatically enrolled and want the money back rather than just stopping future contributions, there’s a narrow window. Plans using an Eligible Automatic Contribution Arrangement, or EACA, may allow you to withdraw the auto-enrolled contributions within 30 to 90 days from your first automatic deduction.6Internal Revenue Service. FAQs – Auto Enrollment – Can an Employee Withdraw Any Automatic Enrollment Contributions From the Retirement Plan The exact deadline depends on your plan, but it can’t exceed 90 days.
Two catches. The withdrawn contributions count as taxable income in the year you receive them. On the other hand, the usual 10% early-withdrawal penalty does not apply to these permissible withdrawals, even if you’re under 59½.6Internal Revenue Service. FAQs – Auto Enrollment – Can an Employee Withdraw Any Automatic Enrollment Contributions From the Retirement Plan Any employer match tied to the withdrawn contributions is forfeited. Plans subject to the SECURE 2.0 mandate are specifically required to offer this withdrawal option.3Federal Register. Automatic Enrollment Requirements Under Section 414A
Miss the window and you can still set your deferral rate to 0% going forward, but the contributions already made stay in the plan until a normal distribution event (hardship, separation from service, age 59½, and so on).
If Your Employer Skips an Increase or Ignores Your Election
Errors happen. An employer might fail to run your scheduled increase, skip auto-enrollment altogether, or ignore your opt-out. The IRS has a correction framework that generally requires the employer to make you whole.
For plans with automatic contribution features, the correction involves starting the correct deferrals going forward and, in many cases, making a corrective contribution to your account for the missed deferral opportunity. The employer must also give you a written notice within 45 days of starting the corrected deferrals, explaining the error, any corrective contribution, and your right to change your rate going forward.7Internal Revenue Service. 401(k) Plan Fix-It Guide – Eligible Employees Weren’t Given the Opportunity to Make an Elective Deferral Election
If matching contributions were also missed because of the error, corrective matches have to be deposited with earnings. The employer generally has until the end of the third plan year after the year of the mistake to complete the correction.7Internal Revenue Service. 401(k) Plan Fix-It Guide – Eligible Employees Weren’t Given the Opportunity to Make an Elective Deferral Election If you think something went wrong, raise it with HR in writing. A paper trail matters if the correction takes time.