What are the re-entry requirements for a marriage visa in Thailand?

When applying for a re-entry permit on a marriage visa in Thailand, you can indicate any return date on the application, as these dates are not strictly enforced. The re-entry permit will be valid as long as your current permission to stay is valid, which corresponds to the last date indicated on your visa. While it's advisable not to plan to leave right before your visa expires, you can apply for a multi-entry re-entry option if you intend to travel frequently. This would require filling out a TM8 form and providing necessary documents, including a passport photo and a fee. It's also recommended to confirm the requirements with the local immigration office, as processes may vary by province.