What Is an Eligible Automatic Contribution Arrangement (EACA)?
Automatic enrollment comes in more than one flavor, and the differences aren’t just paperwork. An eligible automatic contribution arrangement is a specific design that comes with a feature most people don’t know to look for until they need it: a brief window to undo the automatic deferral entirely.
The short answer
An EACA is a type of automatic enrollment arrangement that applies a uniform default contribution rate to all eligible employees, provides required notice about how the arrangement works, and — its most distinctive feature — allows newly enrolled participants to withdraw their automatic contributions within a short window after the first deferral, generally without the penalties that would normally apply to an early withdrawal. It’s a separate design from a qualified automatic contribution arrangement, and the two get confused often because both involve automatic enrollment.
The uniform default rate requirement
An EACA has to apply the same default deferral percentage across all covered employees, rather than varying it by group, role, or tenure. This uniformity is part of what qualifies the arrangement for its particular treatment under the rules, and it’s a simpler structure than basic auto-enrollment sometimes involves, where default rates can occasionally differ by employee category depending on plan design.
The permissible withdrawal window
This is the feature that sets an EACA apart from most other automatic enrollment designs:
- A limited opt-out period. Someone who is automatically enrolled under an EACA generally has a window of up to about ninety days from their first automatic contribution to request a full withdrawal of that money.
- No early withdrawal penalty on the withdrawn amount. Money taken out through this specific window is typically treated differently than a normal early distribution, avoiding the penalty that would usually apply to pulling retirement funds out before retirement age.
- Forfeited employer match, in many cases. Any employer matching contribution tied to the withdrawn deferrals is often forfeited back to the plan rather than paid out alongside the employee’s own contributions.
Once that window closes, the money is treated like any other retirement contribution, subject to the plan’s normal distribution and withdrawal rules going forward, including whatever vesting schedule applies to any employer contributions that remain.
How it differs from a QACA
Both arrangements automate enrollment, but a QACA layers on additional requirements — mandatory automatic escalation and a required employer contribution structure — in exchange for full safe harbor protection from certain nondiscrimination testing. An EACA doesn’t require those same features; it can exist as a standalone design focused mainly on uniform defaults and the withdrawal right, and some plans use it alongside other testing relief provisions rather than full safe harbor status. A plan can, in some cases, be designed to satisfy both sets of rules at once, but they aren’t the same thing by default.
What a new participant should notice
Anyone who discovers they’ve been automatically enrolled and would rather not participate, at least for now, generally has more flexibility under an EACA than they might expect, provided they act within the withdrawal window rather than after it closes. Beyond that window, changing or stopping contributions works the same as it would for any participant adjusting their own deferral election, whether that election is set as a percentage of pay or a flat dollar amount going forward.
A practical habit
Reading the enrollment notice that arrives after a first paycheck deduction, rather than setting it aside, is the only way to know whether a withdrawal window applies and when it closes. Once that period passes, the option disappears, and the contribution becomes subject to the plan’s regular rules like any other retirement deferral.