Who qualifies
A parent or legal guardian of a child who is permanently incapacitated either physically or mentally to such an extent that they cannot maintain themselves.
How to claim
Submit Form ICC1 through myAccount, signed by the child treating physician confirming the incapacity. Revenue allocates the credit to the parent RPN within ten working days of approval.
Detailed explanation
The Incapacitated Child Tax Credit recognises the extra cost of caring for a child whose physical or mental condition prevents them maintaining themselves and which is expected to last at least one year. From 2026 the credit is worth 3,500 euro per qualifying child per year and is one of the most generous credits in the Irish system. The child must be under 18, or 18 and over but permanently incapacitated before turning 21, or permanently incapacitated while in full-time education. There is no minimum severity threshold beyond the inability to maintain oneself, and conditions that qualify include autism spectrum disorders, Down syndrome, severe dyspraxia where it prevents independent living, intellectual disabilities and serious physical conditions. The credit can be split between two parents based on maintenance contributions. The child does not need to live with the claimant, only to be financially supported. Where a child is in residential care the credit is still available to the parent. The credit can be claimed in addition to Domiciliary Care Allowance, Disability Allowance and the Carer Allowance, which are not counted as income for the purpose of the credit. If the child becomes able to maintain themselves, the credit ceases from the start of the next tax year. Many taxpayers also overlap a Dependent Relative Credit claim if a different incapacitated relative lives with them. Revenue typically prefills this credit each year once approved.
Worked example
Liam and Aine support their son who has severe autism. Liam earns 75,000 and claims the credit. Tax: 20 percent on 53,000 = 10,600, plus 40 percent on 22,000 = 8,800. Less Personal Credit 4,000, PAYE Credit 2,000, Home Carer 1,950, Incapacitated Child 3,500 leaves 7,950 euro tax, saving them 3,500 euro versus the position without this credit.