The election you can’t change — until you can

Investor Services Insights · Updated for 2026

Open enrollment closes and the choice hardens. Most employees learn this in February, when circumstances have changed and the payroll deduction has not.

Why the lock exists

Pre-tax benefits are funded through a cafeteria plan under Section 125, and the price of the tax exclusion is irrevocability. If employees could adjust elections whenever it suited them, the arrangement would function as tax-free discretionary spending. So the election is fixed for the plan year, and only a defined event unlocks it.

The events that unlock it

The regulations describe them as qualifying life events, and the list is specific: marriage, divorce, or legal separation; the birth or adoption of a child; the death of a spouse or dependent; a dependent gaining or losing eligibility, as when a child turns 26; a change in your own or your spouse’s employment status that affects benefits eligibility; a significant change in cost or coverage under a plan; and a court order or a change in Medicare or Medicaid entitlement.

Two constraints govern any change. The change must be consistent with the event — the birth of a child supports increasing a dependent care election, not converting it to something unrelated. And you generally have 30 days from the event to act, a window that closes without notice and, in most plans, without appeal.

The HSA is the exception

Here the ownership distinction reasserts itself. Because a health savings account is yours rather than an employer arrangement, HSA contribution elections may be changed at any time during the year, for any reason. No qualifying event is required. What is required is that you remain covered by a qualifying high-deductible health plan while you contribute.

This asymmetry catches people from both directions. Employees assume the HSA is frozen like the FSA and leave contribution room unused. Others assume the FSA is flexible like the HSA and discover in March that a January decision governs the year.

The dependent care exception within the exception

Dependent care FSAs respond to a broader set of triggers than health FSAs, because the qualifying expense is more volatile. A change in the cost of care charged by a provider who is not your relative, a change in your provider, or a change in the hours of care needed can all support a mid-year election change. A day-care center raising its rates is, for these purposes, an event.

What to do

Diarize the 30-day window the moment a qualifying event happens, before the paperwork of the event itself consumes the month. Confirm the change is consistent with the event. And if the change you want involves an HSA, stop looking for a qualifying event — you do not need one.

This article is general information, not individualized investment, legal, or tax advice. Sources referenced include the Internal Revenue Service, Department of Labor, Securities and Exchange Commission, and FINRA. Consult a qualified professional about your circumstances.

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