Yes, you can collect workers' comp and SSD at the same time However, the Social Security Administration may alter your monthly payment of SSD while you receive workers' compensation. Your workers' comp earnings, plus your SSD benefits, cannot total more than 80% of your earnings before you became disabled. If your earnings exceed this amount, the Social Security Administration will alter your alloted monthly payment.
Your Social Security benefits will return to their previous amount once you stop receiving workers' compensation. This does not apply to privately funded insurance plans; they will not alter your monthly Social Security Disability benefits. Veterans' benefits, state/local government benefits, and Supplemental Security Income will also not affect monthly SSD payments.