Transitioning former employees out of 401(k) plans saves you plan costs, fiduciary responsibilities, and audit risk.
If a former employee has a balance of $5,000 or less, you can do a “force out,” which should be a provision in your plan document (if it’s not, add it now!). With it in place, you can automatically remove anyone with a small balance out of the 401(k) after a 30-day written notice.
If the former employee has a balance over $5,000, you can’t force them out. Instead, your service providers can do an outreach campaign to encourage a conversation around shifting.