Can I open someone else's mail in Finland?
No — the secrecy of correspondence applies within households too. The Criminal Code protects sealed letters and electronic messages: opening mail addressed to another is a crime carrying fines or up to two years — a spouse's letter and an adult child's post included. A shared address grants no opening right. Guardians hold a limited right to monitor a minor's communications for protection — not out of curiosity.
📋 The rules
- Unauthorised opening of a sealed letter or message (email, messaging apps) is a violation of the secrecy of communications (CC 38:3).
- A shared address or marriage grants no right — a spouse's mail is the spouse's.
- Mail delivered to the wrong recipient goes back to the post or to the right person unopened.
- Guardians may monitor a minor's communications for protection, weighing age and maturity — systematically reading a teen's messages without grounds isn't protection.
- An estate's mail belongs to the estate's parties jointly — a party may open mail relating to estate administration.
🔓 Exceptions
- Express authorisation (guardianship, a spouse's request for bill handling) legitimises opening — preferably in writing.
- Obvious mass advertising enjoys little protection in practice — when in doubt, don't open.
⚠️ Penalties
Violation: fines or up to 1 year; aggravated (numerous messages, abuse of a position of trust) up to 2 years. In relationships the commonest consequence is destroyed trust — and unlawfully obtained information can backfire in a divorce dispute.
📎 Sources
- Finlex · Criminal Code ch. 38 — secrecy of communications →
- Minilex · Secrecy of correspondence and spouses →
- Posti · Wrong recipient — instructions →
❓ Frequently asked questions
Can I open my spouse's letter?
Not without their permission — marriage doesn't remove the secrecy of communications. Ask, or hand it over unopened.
Can I read my teenager's WhatsApp?
Only for protection with justified grounds (e.g. grooming suspicion) — systematic snooping without cause violates the child's privacy and erodes trust.
What about the previous tenant's mail?
Mark it 'moved — return' and drop it in a postbox — opening is a crime, binning it wrong too.
Can estate mail be opened?
An estate party may open mail relating to administration — personal correspondence belongs to the estate jointly.
🔎 What people search
Searches that lead to this question.
- “opening others mail crime Finland”
- “spouse mail privacy Finland”
- “previous tenant mail Finland”
- “secrecy of correspondence law”