Up to 3 days in advance is when you fill it in

Apparently only on re-entry

@Terry *******

It's free.

Arrival and departure card, every visitor to Thailand now has to complete online or at arrivals .

@Pete ******

that's why!

@Pete ******

you're in for a nasty surprise.

@Pete ******

Tell the THai tax office that. How much tx have you paid in Thailand? “Taxable income” includes salaries, business income, rental income, pensions, and now foreign income brought into Thailand.

If you stay in Thailand for more than 180 days in a year, you are considered a tax resident and must report all income earned in Thailand and any foreign income brought into the country. Last year, the Thai Revenue Department announced new tax rules for both local and international income. If you’re a foreigner earning income in Thailand, these changes will affect you, so it’s important to understand the rules and their impact to avoid penalties, overpaying taxes, or legal consequences. Any income earned abroad after 2023 and transferred into Thailand will be taxed, no matter when it is brought in.

Here's an overview. Basically over 180 days.......

@Nitzan ****

read the articles all foreigners staying longer than 160 days are liable to pay tax - even on pre-taxed income from other countries

Elías Molina...and how is that got anything to do with the conversation..

What visa are you on?