What are the consequences of not filing TM30 in Thailand every time I return from travel?

In Thailand, the TM30 form must be filed by landlords whenever a foreign tenant moves in or out of a residence, including after travels. While the procedure can be cumbersome, especially for frequent travelers, it is technically the landlord's responsibility to file it. Failing to do so could lead to complications for the tenant if they need to visit immigration. Some users suggest that if you don't require a 90-day report, you may not need to worry about it as the system tracks immigration more than individual activities, but it's ultimately safer to ensure that TM30 is filed to avoid potential fines during your next interaction with immigration.