If you drive to Sweden you have to pay the Eurovignette which is a road tax based on a period of time.
You can pay the Eurovignette with the VIALTIS Multi Service Tolls card on the official portal www.eurovignettes.eu
HOW TO PAY BRIDGES IN SWEDEN
Svinesund Bridge: The Svinesund Bridge is a through arch bridge crossing Iddefjord at Svinesund, and joining Sweden and Norway
Øresund Bridge: The Øresund Bridge is an approximately 16 km long road between Sweden and Denmark
VIALTIS offers you the electronic device Brobizz to pay these bridges.