You can't double-dip, but the right order saves the most
Dependent Care FSA vs Child Tax Credit Optimizer
FSA-only: tax savings
0
$5,000 pre-tax cap
Credit-only: tax savings
0
Optimal combination: total savings
0
FSA first, credit on the remainder
You can't double-dip on the same dollars
Expenses paid through a Dependent Care FSA reduce the amount still eligible for the Child and Dependent Care Credit — the credit only applies to care costs beyond what the FSA already covered, up to the credit's own cap.
FSA usually wins first, for most tax brackets
The FSA's pre-tax treatment at your marginal rate typically beats the credit's 20-35% rate once your marginal rate (federal plus FICA plus any state tax) exceeds the applicable credit percentage — which is true for most working households above a modest income.
The credit rate phases down as income rises
The Child and Dependent Care Credit's percentage starts higher for lower-income households and steps down to a floor as AGI increases — higher earners get a smaller percentage, reinforcing why the FSA is usually the better first-dollar choice for them.
FSA modeled at the standard $5,000/year household pre-tax cap. Child and Dependent Care Credit modeled on a simplified sliding scale (35% at lower AGI down to a 20% floor at higher AGI) applied to care expenses up to $3,000 (one qualifying dependent) or $6,000 (two or more), reduced dollar-for-dollar by any amount already covered through an FSA. Real credit percentage brackets and phase-out AGI thresholds are set by the IRS and can be adjusted — verify current-year figures. Not tax advice.
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