The korRor cant be more than a month old, (just had to get mine this morning), and the bank letter and statement must be no older than 7 days.But the copies of your bank book must be upto and including the application date. That means a quick withdrawl in the morning ( not taking your balance below 400k), update the bank book and photocopy the last page, replacing in your pack the previous copy if you made it.
you can get a work permit if married to a Thai, (still have to qualify under all the other requirements), doesn't mean you can just work if married to a Thai, it just drops the visa type 'B' requirement.
By law (2020) you do not have to re-register a tm30 if you are returning to a location within the check-in period of that location. So if your main address is registered with a null checkout date or a date still in the future, then there is no legal obligation to re-register. However, if you need to visit the immigration office for some reason, certain offices require a new TM30 after either/or international/domestic travel. I use CW and do a lot of domestic travel and still utilizing my original tm30.
If your work permit contains your home address, then according to the rules it fulfils the requirement as proof of address. However for the last couple of years addresses are no longer included in the work permit, so the residency certificate would be required. You should also watch the dlt safety video online before you go (not the same video on you tube). After answering some ad hoc questions, print out the QR code that proves you completed it as this generally allows you to skip any ques or appointments to watch the video.
no the problem is that the 100s of 1000's of farangs didn't take the time to understand the tax laws when they moved here. They have always been in place, the thresholds & tax rates etc may have changed over the years, and what is taxable and is not. Those that did take the time, and knew they could avoid tax complications by holding money abroad until the next tax year before remitting it are the only ones effected by the change which was well comunicated at the time. Everybody else is just learning what they should have been doing for years, which is not something the government should have to explain.