泰國公司應注意的關鍵月份提交截止日期: 1. VAT must be submitted by the 15th of the following month 增值稅必須在下個月 15 日之前提交 2. Withholding tax is due by the 7th of the following month, e-filing by the 15th 預扣稅應於下個月 7 日之前繳納，電子申報截止日期為 15 日 3. Social security contribution due by the 15th of the following month 社會安全繳款截止日期為下個月 15 日