Effective since September 23, 2010, the new health care law requires plans to provide coverage for children until they attain age 26. Further, effective on or after March 30, 2010, children under the age of 27 are considered dependents of a taxpayer for purposes of the general exclusion from income for reimbursements for medical care expenses of an employee, spouse, and dependents under an employer-provided accident or health plan.
Therefore, a plan must provide coverage to a child who is still a dependent up to age 26; but can do so up to age 27 without income tax consequences. A child includes a son, daughter, stepson, or stepdaughter of the taxpayer; a foster child placed with the taxpayer by an authorized placement agency or by judgment, decree, or other order of any court of competent jurisdiction; and a legally adopted child of the taxpayer or a child who has been lawfully placed with the taxpayer for legal adoption.