The threshold for mandatory VAT registration in Bahrain is BD 37,500. BMS Auditing Bahrain is offering hassle-free VAT registration in Bahrain » . Every business or individual in Bahrain should follow Bahrain's VAT compliance and register with VAT. All the businesses must know, who is liable to register under VAT. However, there is an option to voluntarily register under VAT, while there are businesses that are totally exempted from VAT registration.