There are no customs fees if your shipping address is in the US. If your print is shipped to a European address, there are no customs fees on Posters, Canvas, and Framed Prints (with the exception of framed prints shipped via Express post because they are produced in our UK labs).
If your order is going to a country in the rest of the world, import tax fees may be required depending on the country's customs laws. Such countries can be in Central America, Latin America, Asia and the Middle East. Since this depends on the laws of the country of destination, we suggest getting in touch with your local customs agency should you need further information.