Childcare Costs and the Dependent Care FSA

Childcare is often a household's largest expense after housing, and one of the few where the tax code offers a genuinely large, deliberately unclaimed benefit.

Last verified 2026-07-26

What a dependent care FSA does

A dependent care flexible spending account lets you pay for qualifying care with pre-tax salary. You elect an amount at open enrolment, it comes out of your pay before tax, and you reimburse yourself for eligible care costs.

For 2026 the limit rose substantially: $7,500, up from $5,000, and $3,750 for married filing separately.

The saving is bigger than it first looks because the money escapes both income tax and FICA. Someone in the 22% bracket avoids that plus 7.65% FICA on every dollar routed through it.

The two rules that catch people

It's use-it-or-lose-it. Money you elect and don't spend on qualifying care within the plan year is generally forfeited, subject to whatever grace period or carryover your plan allows.

And the election is locked for the plan year. You generally can't change it mid-year without a qualifying life event — a birth, a marriage, a change in employment or in care arrangements.

Together these mean the sensible election is the amount you're confident you'll spend, not the maximum. Over-electing converts a tax benefit into a forfeiture.

There's also a credit, and you can't double-dip

Separately from the FSA, the Child and Dependent Care Credit reduces your tax directly based on qualifying care expenses.

You cannot use the same expenses for both. Dollars run through a dependent care FSA reduce the expenses available for the credit, so the two interact rather than stacking.

Which comes out ahead depends on income, bracket, and the amount of care spending — the mechanics are what's worth knowing here. This is education about how the rules fit together, not a recommendation for any particular household.