Hi, Depending on the country you refer to as abroad, for Canada and The United Kingdom you'd need to achieve at least overall 7 bands out of 9 in IELTS, whereas, for Australia, New Zealand and The United States of America, you'd need overall 89+ score out of 120 for TOEFL. Best Regards
If your business goal revolves around raising the entry barrier then, I believe, you need to stop and think twice. Focus on "How" to deliver utmost value at best possible price. The underlying intent should be to achieve uniqueness and differentiating yourself from the usual suspects. The differe...