@Marija ********
TR visa Multi Entry 6 months
As a resident of Croatia, you need, among other documents, a financial proof of having deposited 5000.- Euro in your bank account for the past three months, for the application to the multi entry Tourist Visa.
The visa will be valid for 6 months starting from the date of its issue. This means that within these 6 months of visa validity, you can enter Thailand as many times as you wish – and whatever border you use - by land, by sea or by air - you will get stamped in for 60 days stay permit each and every time.
Before the 60-days stay permit expires, you can buy a 30-days extension on top of these 60 days at immigration, for 1900.- THB, or you can exit Thailand and activate the next 60-days stay permit by re-entering.
The implementation of the proposed taxation system is, at the moment, a bit unclear. Myself and we all need more time and need to follow on how it will be unravelled and implemented, before we can give you detailed & correct info.
And because we don’t exactly know what will be levied in this matter by next year, I suggest you stay in Thailand less than 180 days per calendar year.
With a 179-days stay, and only by this, you avoid being classed as a tax resident inside Thailand, even on a tourist visa!