Are children fined for late 90-day reports and do they need TM30 reports in Thailand?

In Thailand, children under 15 years of age are not fined for late 90-day reports. The TM30 report does need to include children, and they are listed on the TM30 schedule. While first-time 90-day reports may be processed at the immigration office where the visas were originally issued, reporting can also be done through various other options such as mail, websites, or mobile apps. There are no costs mentioned for these processes.