The TxDMV Data Center Services (DCS) vendor is working to resolve statewide technical difficulties that are affecting all state agencies when processing payments. Due to this issue all TxDMV applications and webservices are unable to process payments at this time.
We apologize for any inconvenience and any impact on you or your customers.
Texas Department of Motor Vehicles
Source: Dealers and Manufacturers
Update: Technical Issues Processing Payments (2/26/2021 @ 2:35PM)