is it illegal to buy something from ebay UK and resell on ebay australia?

it all depends on what you're importing, most countries don't allow the importation of foreign plants and animals without proper licenses. Also be on the look out for things like alcohol and fruits and certain products containing chemicals that are banned or regulated.

You need to be careful when importing/dropshipping to mind not only the laws of your own but the country you're sending the goods to.

 

I don't think there should be any problem unless there are some restriction like the product is made for certain countries.

.SR

 

Possibly because both countries are in the Commonwealth? But I used to buy from India and South Africa and sell to Germany, UK, and USA and had no problems (I sold jewelry).