401(k) glossary
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Contributions & limits
Automatic escalation
Short definition
Automatic escalation raises an employee’s 401(k) deferral rate by a set amount each year, usually 1% of pay, until it reaches a cap. Employees can opt out or choose a different rate at any time.
What automatic escalation is
Automatic escalation works alongside automatic enrollment. Two sets of rules require it. A qualified automatic contribution arrangement (QACA) must default employees to at least 3% of pay, rising to at least 6%. And most 401(k) plans established on or after December 29, 2022 must, for plan years beginning after 2024, enroll employees at 3% to 10% and raise the rate 1% a year until it reaches at least 10%, and no more than 15%. Small businesses with 10 or fewer employees and businesses less than three years old are exempt from that mandate.
Why it matters to employers
Employees who are enrolled by default tend to stay at the default rate. Escalation raises savings without asking anyone to fill in a form, and it helps ADP test results. It also raises your match cost over time, so budget for it. Payroll has to apply the increase on the plan’s date every year.
Example
An employee earning $60,000 is enrolled at 4% in 2026 and defers $2,400. With 1% steps each January she reaches 10% in 2032 and defers $6,000 a year on the same pay.
Common mistakes
Payroll not applying the annual increase, which is a missed deferral error.
Escalating an employee who has made their own election. Their election controls.
Not budgeting for the higher employer match.
Sources
U.S. Code (govinfo.gov): 26 U.S.C. 414A: Requirements related to automatic enrollment (https://www.govinfo.gov/content/pkg/USCODE-2023-title26/html/USCODE-2023-title26-subtitleA-chap1-subchapD-partI-subpartB-sec414A.htm), retrieved 2026-11-11 Federal Register: Automatic enrollment requirements under section 414A (proposed regulations, January 14, 2025) (https://www.federalregister.gov/documents/2025/01/14/2025-00501/automatic-enrollment-requirements-under-section-414a), retrieved 2026-11-11 eCFR (National Archives): 26 CFR 1.401(k)-3: Safe harbor requirements (https://www.ecfr.gov/current/title-26/chapter-I/subchapter-A/part-1/section-1.401(k)-3), retrieved 2026-11-11 Internal Revenue Service: FAQs: Are there different types of automatic contribution arrangements for retirement plans? (https://www.irs.gov/retirement-plans/faqs-auto-enrollment-are-there-different-types-of-automatic-contribution-arrangements-for-retirement-plans), retrieved 2026-11-11
General information, not legal or tax advice.
