You can buy and modify a KmToll ticket on this website. There are no physical sales locations.
Can I buy a KmToll ticket after my trip? No, you must buy a KmToll ticket before driving on tolled roads in Denmark.
See where you need to pay road toll here
Can I buy a KmToll ticket if my truck is registered abroad? Yes. When you buy a KmToll ticket for a truck that is not registered in Denmark, you need to provide the CO2 emission class and weight.
What payment methods can I use to buy a KmToll ticket? You can pay with Visa or Mastercard when you buy a KmToll ticket. Unfortunately, it is not possible to pay with a fuel card.
Can I modify or cancel my KmToll ticket? You can change or cancel the entire route up to the start time on your ticket. From the start time on your ticket, you can change the route between the start and end points for up to 72 hours.