DSO is short for Domestic Support Obligation or more commonly known as Child Support. When you file for a Chapter 13 bankruptcy, you are allowed to put an arrears through the plan to pay for the child support; however, you are responsible for making all future payments on time each month from that point forward. It is also required prior to the pre-hearing confirmation that a DSO affidavit is signed and filed with the courts that states that you are current with the child support obligation. Under the new law that was passed a couple of years ago, it made it a requirement to stay current with your child support obligations otherwise you will not be able to move forward with your chapter 13 plan and the Chapter 13 Trustee will not confirm the plan. If the trustee does not confirm the plan, then the trustee will issue a dismissal with the courts to dismiss your case for failure to confirm your plan and your case will be dismissed and you will be forced to re-file your case. If you are a Debtor responsible for paying child support, consult with your attorney with any questions that you may have.