Here the solution was to simply charge a "handling fee" on all incoming small packet and small parcel items, and if the declared value total for a year exceeds a threshold you have to pay customs duty on the lot every year end. Does mean a $1 with shipping packet, comes in with you having to pay $2.50 as fee. Sucks if the order was sent as 5 or 10 small packets if you ordered multiple, as the seller has them ready packed and just puts the sticker on it, then dumps it into a bag to go via China post. Only way the Post office is going to make any money, as almost nobody sends actual mail these days, and sending a parcel by them is also expensive, and not guaranteed to be delivered at all.