When you arrive in Finland from abroad, after picking up your luggage, you pass through the customs channel to the arrivals lobby. Select the red channel if you have goods to declare. If not, pass through the green channel or the blue EU channel if you are arriving from another EU country.
For departing passengers from Helsinki Airport, customs service point can be found in arrivals hall and after security control at the gate 29. When making a tax free declaration, please contact customs before check in to declare the goods.