- I have two tax zones: 1. inside eu (22% and 8%) and 2. outside eu taxfree

I remember reading from some currency discussion that currency can be determined from ip address.. so could tax free status be updated as well?

second option could be that I'd but two links in the header with eu and others and it would determine prices either taxfree or with tax?

If there is any contributions that you think could be useful for this please advice. Many thanks!