Yes, “handling fee” on top. Nice little earner for couriers.
You used to stand a chance of avoiding any charges at all if sent via USPS as that was more likely come in via Royal Mail (not Parcel Force or other courier) and RM didn’t check everything. I used to get away importing a fair few boxes and box sets of DVDs and the like, and similar with camera lenses. Though that was many years ago now. Anything that came in via couriers like UPS or Parcel Force were a guaranteed hit. Some bill you later also, so you get a nice surprise in the post.
Know anyone returning from US? Carry through customs and 99% of the time get away with it. They’re only looking for certain targets usually. Just get the receipts mailed back home and maybe the box (or bin the box).