If you obtained your Swedish citizenship through an application, you will not lose it by moving abroad. However, if you were born as a Swedish citizen and have lived permanently outside Sweden, there are some cases where you could lose your citizenship. This can be a bit confusing, so let's break it down.
You may lose your Swedish citizenship when you turn 22 if you:
- Were born outside of Sweden
- Have never lived in Sweden, and
- Have never been in Sweden under circumstances that demonstrate a connection to Sweden.
However, you will not lose your Swedish citizenship if this would result in you becoming stateless. To avoid losing your Swedish citizenship, you can apply to keep it. This application must be made after you turn 18 but before you turn 22. More information can be found on Migrationsverkets website.
If these conditions do not apply to you, you will not lose your citizenship, even if you move abroad permanently.
Source: Migrationsverket