Applying for a visa can be a complex and daunting process, and even small mistakes can lead to costly delays or outright denials. At Green & Partners, our immigration team has seen every type of application error. This article highlights the top 10 most common mistakes — from incomplete forms and missing documentation to incorrect fee payments and missed deadlines — and provides practical advice on how to avoid each one. We also share tips on preparing for interviews, maintaining legal status while your application is pending, and what to do if your application is denied. With the right preparation, you can significantly improve your chances of a successful outcome.