In both situations, the salary-reduction contribution that automatically is made if an employee does not make an affirmative election to receive cash satisfies the requirement of a cash or deferral election. The I.R.S. says that the 401k regulations don't require an employee to receive cash if he does not make an affirmative election to have an amount contributed to the plan. Rather, a cash or deferred election can be made when an employee fails to make an affirmative election if the amount is contributed to the plan on the employee's behalf, provided the employee had an effective opportunity to elect to receive that amount in cash. The I.R.S. says that an employee has an effective opportunity to elect to receive an amount in cash if he receives notice of the availability of the election and has a reasonable period to make the election before the cash becomes currently available. In addition, the contributions aren't made under a one-time irrevocable election (one-time irrevocable elections are banned under the 401k regulations) because employees can change the election in the future.
Making a 401k elective deferral the default choice (known as a negative election or automatic enrollment) may help to increase the actual deferral percentage (ADP) for nonhighly compensated employees and thus help to maximize the elective deferrals permitted to be made by highly compensated employees. Employer's who have difficulty getting newly eligible employees to sign up for their 401(k) plans should consider the negative election to increase plan participation.