To renew your Texas LTC you will not need to take a class or submit fingerprints again. You simply renew online on the DPS website by logging in as a “returning user”. You can renew up to 6 months early, if you try any earlier the renewal link won't be there when you log in.
The License to Carry a Handgun service allows you to apply for, renew, or check the status of a handgun license or instructor certification online with the Texas Department of Public Safety.
Yes, online courses are legal and legitimate. GC 411.188 as included in Texas License to Carry and Handgun Laws issued by the Texas Department of Public Safety states (page 17):
Complete The Online LTC/CHL Class Complete the self paced online class. Come and go as needed. Each section is roughly 15 minutes. You are immediately given access to your DPS LTC-104 (Formerly called a LTC-101 if issued prior to May 1st 2024).
What Happens if Your Texas LTC Expires? If your Texas LTC expires, you have one year to renew it. After one year, you must start the application process over again as a new applicant, including taking the required training course.
You can apply for a renewal online, by mail, or in person at your local DPS office. To apply online, you will need to provide your current CHL number, a valid email address, and a valid credit card. For more information on the renewal process, visit the DPS website.