2018 CD-429B Underpayment of Estimated Tax by C-Corporations
Corporations use Form CD-429B to determine whether the corporation owes interest on the underpayment of estimated tax and if so, the amount of interest.
Important Reminder for Victims of Hurricane Helene
The deadline for taxpayers affected by Hurricane Helene to file and pay income tax without incurring a penalty is September 25, 2025. Read more about tax relief for victims of Hurricane Helene.
Vapor Manufacturers Can Submit Their Certifications to the Department Starting on March 1, 2025
The Vapor and Consumable Product Directory will be available to view on May 1, 2025. For more information, go to Vapor Product and Consumable Product Certification and Directory.