INTERNATIONAL BUYERS: Import Duties, taxes and/or VAT charges aren't included in initial item price or
postage cost. These charges are the buyer's responsibility, as per Ebay's official Terms of Service, which quote:
"Buyers are responsible for customs fees and duties on items shipped
internationally in accordance with local laws and regulations. Whether
these fees are due at the time of the purchase or on delivery of the
item is determined by the shipping method that the seller offers or that
the buyer chooses and local laws and regulations."
The seller has no control over customs tax. Check
with your country's customs office to determine what these additional
costs may be, and also be familiar with what you are allowed to import
to your country, prior to buying or bidding.
More
information in Ebay's Terms of Service, section #7 of "International
Selling Policy":
https://www.ebay.com/help/policies/selling-policies/international-selling-policy?id=4689