From a consumer perspective how does this work? If you buy $100 of stuff from a US company (plus shipping) do you have to go to the local post office to pickup a package and pay an additional amount to have your package released to you? Do most major carriers charge you and just deliver the package to your home? If there's a VAT (which I understand many countries have) do you pay that in addition to any customs or duties? I know VAT is often around 15-20% - how much are any other customs or duties?
Sweden replying: Yes, this is bascially how it happens. The actual payment method varies a little by courier - if the parcel is imported by our national postal company (Postnord) I get a letter home with payment info and the parcel is held until the payment is made. Private couriers like Fedex sometimes sent the parcel to me first and an invoice later.
The customs fee vary by product and countries involved and some products have extra taxes on top of that (e.g. an environmental tax on electronics)- the total of these fees are often 5% or less. Once that is calculated, 25% VAT is added to the total amount including shipping costs, and then the courier takes an administrative fee of around 10 USD for this handling. Sometimes parcels slip through the net, and some low value items pass below a threshold and one or more of the fees are skipped especially if marked as gifts. But generally, any non-EU parcel that I get will get these fees added and for small items the 10 USD handling fee is the main part.
I think our 25% VAT is the highest in the EU, many countries are slightly lower. Also, the customs handling normally trusts the documentation attached to the parcel regarding the value, but sometimes they open the package and double check. Some sellers regularly put a lower value on the parcel to make it cheaper for us, but this is not legal in my understanding. Seems to work, though. Gifts are taxable too, generally.
As a side note, for shipment to EU countries there seems to be a movement to having these fees added already by the seller or the platform (Ebay, Amazon, Aliexpress, Etsy) and you might want to look into that depending on your sales volumes to us. Since it makes life easier many consumers may appreciate this. This is now know as
Internet One Stop Shop:
https://ec.europa.eu/taxation_customs/ioss_en