In Norway, if you live in Norway and pay tax abroad, that will normally be 100% deductible from your tax in Norway (kredittfradrag). If you are not norwegian and you live outside Norway, but commute to work in Norway, and you're not paid in Norway, then I don't believe it's taxable in Norway either. So the system is actually fair that way, in that you shall not be taxed for the same income twice. However, it's not up to each person to decide (based on their percieved use of the system) -- if you have the right to use schools, hospitals and welfare systems, you pay tax for that right, not the actual use. And whether we like it or not, the tax system can come back to bite a person in the ass up to 10 years later, with hefty fines for those without their paperwork in order. So while the moralistic part is one argument, perhaps the biggest argument is to avoid the risk of being caught.
Last edited by bfisk; 24th Nov 2011 at 14:53.