The amount your child receives depends on the amount of the parent’s monthly SSDI payment. Your child will typically be eligible for 50% of the parent’s benefit amount. So, if you receive a disability payment each month of $1,000, your child will likely be eligible to receive $500 each month. The numbers begin to change when multiple children are involved. Suppose you have two children in the example above. Each child would not receive $500. Instead, that benefit would be split between the children so that they each received $250 per month. The more children you have, the less each child will receive each month.