What is the best way to efficiently update my TM30 when reentering Thailand, and are there any TM30 regulations for domestic travel within the country?

Expats in Thailand must update their TM30 registration upon reentering the country, though the process can vary by immigration office. It is often recommended to register online for convenience, and many expats prefer to handle this themselves to avoid bothering their landlords. However, some immigration offices may not require an updated TM30 if returning to the same address without lengthy absences. For domestic travel, the registration may not need to be updated unless engaging with immigration services that require a TM30. Overall, while TM30 compliance is important, experiences suggest leniency can exist, depending on individual circumstances.