Currency and Currency exchange :
The Thai unit of currency is the baht 1 baht is divided into 100 satang. Note are in denominations of 1,000 (brown), 500 (purple), 100 (red), 50 (blue), 20 (green) and 10 (brown) baht. Coins consist of 25 satang, 50 satang, 1 baht, 5 baht and 10 baht.
Major currency bills and travellers cheques are cashed easily at hotels, tourist shops, all provincial banks, shopping centres and money changers. Travellers cheques are best changed in banks (you will need your passport). Rates of exchange at banks or authorized money changers are better than those at hotels and department stores.
Any amount of foreign currency may be brought into the country. Visitors may take foreign currency out of Thailand, but no more than the amount stated in the customs declaration made on arrival. Travellers leaving Thailand may take out no more than 50,000 baht per person in Thai currency.
Currency Notes :
Paper baht comes in denominations of 10 (brown), 20 (green), 50 (blue), 100 (red), 500 (purple) and 1000 (beige). Currency CoinsThere are 100 satang in one baht; coins include 25-satang and 50-satang pieces and baht in denominations of 1, 2, 5 and 10. Thai baht is in denominations of: Credit Cards:Credit cards are widely accepted. For lost cards : American Express Tel : (662) 273 5100 or (662) 273 0022 Diners Club Tel : (662) 238 2920 or (662) 238 2680 Master Card Tel : (662) 256 7326-7 Visa Tel : (662) 256 7326-7
Tipping is not a usual practice in Thailand although it is becoming more common. Most hotels and restaurants add a 10% service charge to the bill. Taxi drivers do not require a tip, but the gesture is appreciated and 10-20 baht is acceptable for porters.
Fixed prices are the norm in department stores, but at most other places bargaining is to be expected. Generally, you can obtain a final figure of between 10-40% lower than the original asking price. Much depends on your skills and the shopkeeper's mood. But remember, Thais appreciate good manners and a sense of humor. With patience and a broad smile, you will not only get a better price, you will also enjoy shopping as an art.
V.A.T. Refunds : Visitors entering the Kingdom on a tourist visa are entitled to refund of the 7%
V.A.T. on goods purchased at registered retail outlets.
Article Source : www.tourismthailand.org