DUA's regulations on waivers of overpayment are found at 430 CMR 6. What is an Overpayment Waiver?An overpayment of benefits can occur for a number of reasons. Knowing how they can occur can help you avoid such a circumstance. A benefit overpayment is when you are given more money than you are entitled to. This may happen if we don't know your circumstances have changed. Overpayment may be eligible for a waiver if: