After entering my child care expenses my Federal return gets reduced.

[TurboTax-Terry · Accepted solution]

Some credits available as refundable amounts such as Working Income Tax Benefit and the Medical Expenses Supplement are based on having a minimum amount of Net Income. You may be reducing these amounts by claiming Childcare Costs.

Review the detailed Tax Summary by clicking under the green refund indicator. And reviewing your return with and without the Childcare deduction.