Figuring the reduction
Your monthly Social Security disability benefits, including benefits payable to your family members, are added together with your workers’ compensation or other public disability payment.
If the total amount of these benefits exceeds 80 percent of your average current earnings, the excess amount is deducted from your Social Security benefit.
Example: Before you became disabled your average current earnings were $4,000 a month. You, your spouse and your two children would be eligible to receive a total of $2,200 a month in Social Security disability benefits. However, you also receive $2,000 a month from workers’ compensation. Because the total amount of benefits you would receive ($4,200) is more than $3,200 (80 percent of your average current earnings), your family’s Social Security benefits will be reduced by $1,000.