Several countries permit international students to start businesses while on a study visa, though conditions vary. In the United States, students on an F-1 visa can apply for Optional Practical Training (OPT) to launch a business, provided it relates to their field of study. Canada allows study permit holders to operate a business if they meet specific criteria, such as not working full-time while classes are in session.
Australia grants student visa holders the right to work up to 48 hours fortnightly, enabling entrepreneurial activities. The United Kingdom permits limited business engagement under Tier 4 visas, but full-scale entrepreneurship may require switching to a Start-up visa.