Disability Supplement to Child Benefit Calculator
The bonificação por deficiência is a supplement paid on top of Portuguese child benefit for children and young people with a disability. Enter the age, the annual household income and the household shape: the calculator shows the supplement, the base child benefit for the same child and the monthly and annual total.
The supplement depends only on the age and on the household composition. The annual income and the number of children are used to work out the child-benefit bracket, which is the other part of the total.
Means test: the household's movable assets (deposits, shares, savings certificates and other financial assets) must be below €128,911.20, that is 240 times the IAS. The calculator does not check it.
Gross monthly family-benefit amounts for 2026, before any tax (these benefits are not taxed). Not computed here: the PSI top-up, the special-education attendance allowance, the third-person care allowance, the extra child benefit for second and third children under 36 months, and the full means-test rules.
Informative estimate based on the Social Security practical guide. It is not legal or financial advice.
What the disability supplement is
It is a cash increase to child benefit for children and young people with a disability who need individual educational or therapeutic support and who attend, are resident in, or are in a position to attend a specialised rehabilitation establishment. It is paid monthly, twelve times a year, to the same person who receives the child benefit, and it is added to it rather than replacing it.
What it is worth in 2026
The amount depends only on age: €74.19 a month up to 14, €108.06 from 14 to 18 and €144.63 from 18 to 24. Where the child lives in a household with a single responsible adult, the amount rises by 50%, giving €111.29, €162.09 and €216.95. These are exactly the figures published by the Instituto da Segurança Social in the July 2026 edition of its practical guide.
The cut-off at 11 that almost nobody explains
Decreto-Lei n.º 136/2019 put the third phase of the Prestação Social para a Inclusão into effect and redrew the benefit map. Since 1 October 2019 a new claim can only be made for children up to 10, and the supplement is paid until the month before the child turns 11. Only those already receiving it on 30 September 2019 keep it to 24. That is why the calculator asks when the claim was made: it is that answer, not the age, which decides whether the higher rows still apply.
The supplement and the benefit bracket are different things
Child benefit is awarded by brackets: the household annual income is divided by the number of entitled children plus one, and the result places the family in one of five brackets, with no benefit at all in the fifth. The disability supplement does not follow that rule. What does gate it is the assets means test, which requires the household movable assets to stay below €128,911.20, that is 240 times the 2026 IAS.
What comes next: the Prestação Social para a Inclusão
When the supplement ends, the benefit that replaces it is the Prestação Social para a Inclusão. Its base component for a claimant under 18 is €166.82 a month in 2026, plus 35% in a single-parent household, and there may also be a means-tested top-up. The two are never paid together: whoever moves onto the PSI stops receiving the supplement. The calculator shows the base component as soon as the age cut-off bites, so the comparison is in plain sight.
Worked example
A household with €12,000 of annual income and an 8-year-old child with a disability. The reference income is €12,000 divided by two, that is €6,000, which places the household in the 2nd bracket: child benefit for a child over 72 months in that bracket is €75.13 a month. The disability supplement, up to 14, is €74.19. The family receives €149.32 a month, €1,791.84 over a year. If the household had a single responsible adult, both parts would rise by 50% and the total would become €223.99 a month. If instead the annual income were €60,000, the household would fall in the 5th bracket and the child benefit would be zero, but the supplement would still be paid: €74.19 a month.
Frequently asked questions
How much is the disability supplement in 2026?
Does a higher-income family qualify for the supplement?
Up to what age is the supplement paid?
What happens when the child turns 11?
Can the supplement be combined with child benefit?
Is the supplement taxed?
Who certifies the disability?
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Sources
- Guia Prático «Bonificação por Deficiência» (4002, v4.48, 2 de julho de 2026) · Instituto da Segurança Social, I.P.
- Bonificação do abono de família para crianças e jovens com deficiência · Segurança Social
- Decreto-Lei n.º 136/2019, de 6 de setembro: terceira fase da prestação social para a inclusão · Diário da República
- Portaria n.º 480-A/2025/1, de 30 de dezembro: valor do IAS para 2026 (537,13 €) · Diário da República
- Decreto-Lei n.º 133-B/97, de 30 de maio: regime jurídico das prestações familiares · Diário da República
Author: Thorben Rasmus Idel · Reviewed by: Nahar Geva · Last reviewed: 2026-08-10