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Form 100. Personal Income Tax Declaration 2018

10.7.3. Due to disability of ascendants or descendants

For each descendant or ascendant with a disability the amount of 300 euros.


  1. The descendant or ascendant must be entitled to the minimum for disability of ascendants or descendants.

  2. The descendant or ascendant must prove a degree of disability equal to or greater than 65 percent.

  3. The sum of the general tax base and the savings must not exceed the amount of 27,000 euros in individual taxation or 36,000 euros in joint taxation.

  4. In joint taxation, if any descendant member of the family unit is a person with a disability to the required degree, the "deduction for descendants with disabilities" will be applied to him and not the one corresponding to "taxpayers with disabilities."

  5. This deduction will be incompatible with the deduction for ascendants over 75 years of age. In the event that the ascendant over 75 years of age is a person with a disability equal to or greater than 65%, the disability deduction will be applied.

When two or more taxpayers have the right to apply the deduction for the same ascendants or descendants, and one of them does not meet the requirements established in point 3 above, the amount of the deduction for the other taxpayers will be reduced to the proportion that results from the application of the rules for the proration of the minimum by descendants, ascendants and disability provided for in state legislation.

Note: The deduction will be calculated by the program based on the data you have indicated in the " Personal and family data" windows.