CP268 tells you we made changes to your return because we believe there is a miscalculation on your return. NCDOR began issuing 2023 individual income tax refunds on March 18, 2024.Check your refund status. Use Form 843 to claim a refund or request an abatement of certain taxes, penalties, additions to tax, interest, and fees. This notice is sent because your refund was reduced resulting in either a decreased refund amount or a balance due. You may file a written appeal of an overpayment determination. You have 30 days from the date the overpayment determination is mailed to file an appeal. Page provides taxpayers and tax professionals the mailing address for submitting Form 843. How do I apply for Child Support Services? You can complete the application at your local CSS office or apply online.