In short:

  1. The PEA tax advantage depends on a 5-year period, which starts with the first deposit.
  2. Opening a plan early, even with a small amount, starts that clock.
  3. The minimum opening amount varies between institutions.
  4. Before 5 years, a withdrawal generally closes the plan.

How seniority works

The PEA rewards time: what counts is the age of the plan, not of each investment. A plan opened 5 years ago with a small deposit is already “mature”, even if most of the money arrives later.

Who should start the clock

SituationBenefit of opening early
Young worker saving littleThe clock runs while savings build up
Plan to invest in shares in a few yearsThe plan will already be old by then
Expected inheritance or saleMoney can go into an already mature plan

What to check

The choice of institution matters: minimum opening amount, account fees and trading fees. A PEA can be transferred to another institution without losing its seniority, which leaves room to switch later.