Contact Us

For information related to COVID-19 issues, please click here.

If you are in need of Technical Support, please submit a problem report withe a description of your issue by going to Help/Submit Problem Report. If you are unable to send a Problem Report, please message us at the link below. We will respond to your issue via email as soon as possible between 10:00 AM and 4:00 PM (CST), Monday - Friday. Any Technical Support Incidents requested after 3:30 PM will be replied to the following business day.

Holiday Hours: Closed December 21 - 23, 2022 and December 30, 2022 - January 2, 2023

If you require assistance during this time, please send us an email with a description of your issue by clicking the link below and a Problem Report by going to Help/Submit Problem Report from your C21 menu. We will respond to your request when we reopen for normal business hours.

21st Century Accounting
P.O. Box 66561
Austin, TX 78766-9998
Fax: (737) 200-1177

If you are unable to email us or send a Problem Report for Technical Support, please call us and leave a message at the number below:

Phone: (888) 542-5068

Click here to contact technical support.

Click here to contact customer service.

Existing customers: Need help finding your Serial Number, Version Number, or installed add-ons? Click here.