There are 2 kinds of fees, BTC & cryptos or Stable coins
Normal situation = before 7 May 2025 p2p is legit.
But after 7th May 2025 P2P is illegal in Thailand so we need+3% for risk value

So we need+3% for risk value
BTC & Cryptos Exchange fees
20,000($624) – 100,000($3,125) THB is 7+3=10%
100,001($3,126) – 200,000($6,250) THB is 6+3=9 %
200,001($6,251)- up THB is 5+3=8 %
Only stable coin USDT fees
10,000($312) – 50,000($1,563) THB is 6+3=9%
50,001($1,564) – 100,000($3,125) THB is 5+3=8 %
100,001($3,126) – 300,000($9,375) THB is 4+3=7 %
300,001($9,376) – up THB is 3+3=6%
THB rate
We refer to THB price from BinanceTH (Binance that registered to Thai regulator law)
THB/USDT rate will up to date daily

