Chapter 12 · A secular state and a multi-religious country
Hur gör en vuxen person som vill gå ur Svenska kyrkan?
How does an adult who wants to leave the Church of Sweden do it?
Correct answer: Notifies their parish, which is free of charge
Freedom of religion also includes the right to stay outside. Nobody can be forced to belong to a faith community.
Source: Sverige i fokus · 12. En sekulär stat och ett mångreligiöst land