Tax & banking in Thailand

Record every day spent in Thailand and every country where you worked. List salary, freelance income, rent, dividends, interest, gains, pensions, company benefits and digital-asset transactions. For each item, identify the source country, payment date, account received into and tax already withheld.

Thailand's Revenue Department publishes its residence rule and the treatment of Thai-source and certain foreign-source income. The legal result can depend on the tax year and facts, so do not rely on social-media summaries of a single threshold.

Account-opening evidence varies by institution, branch, visa type and product. Bring passport, immigration evidence, Thai address details, tax or employment documents and any bank-specific letter, but confirm the branch's current checklist first. A refusal at one branch is not proof of a national legal rule. It also does not mean another bank must accept you.

Compare transfer fees, exchange spread, international limits, card controls, English support and the process for changing phone number or passport. Keep a foreign account and card operational until the Thai setup has been tested.

Use regulated providers, name transfers clearly and preserve source-of-funds records for large movements, property, company capital and future repatriation. Bank of Thailand foreign-exchange rules distinguish account types and transaction purposes; ask the receiving bank what evidence will be recorded.

Get written cross-border advice when you own a company or property, exercise share options, draw pensions, hold trusts, trade frequently or may be resident in two places. The adviser should cover both domestic law and the relevant double-tax agreement.