You can receive increased family allowance for children with a disability of at least 50 percent that is expected to last more than 3 years. You will receive the increased amount for as long as you receive the general family allowance. Under certain conditions, the family allowance is granted until the 25th birthday. There is no such age limit for people with disabilities who are unable to work.
You can find more information, including the amount of the additional amount, here:
More details and information on how to apply can be found in the following brochure from page 8:
Last update: July 31, 2025