Norway: In 2017 the capital gains tax is 24%. If you sell bitcoin, you pay 24% on profits. I hope you have proof of your purchases, because you may need to provide that later down the line. Any bitcoin holdings you have are supposed to be taxed with fortune tax, which is ~0.85% per year of your bitcoins (only applies if your fortune is 1 480 000 kr or more).
You can read the full details of the tax agency's opinion here:
http://www.skatteetaten.no/no/Bedrift-og-organisasjon/rapportering-og-bransjer/e-handel/skattemessige-konsekvenser-ved-bruk-av-bitcoins-og-andre-virtuelle-valutaer-for-privatpersoner/
I am of the personal opinion that fortune tax does not apply, the tax agency started claiming VAT is required on bitcoin, but changed their mind after EU came out with a declaration regarding bitcoin. No laws were changed. It is therefore possible that the tax agency is wrong on both fortune tax and capital gains tax, although I have no good legal argument against capital gains tax at this time and I will not reveal my argument against fortune tax as to not provide time for agency to figure out a comeback.
This is not a unique problem for norway or denmark. I live in Oslo and in spite of all my effort, i couldn´t get any solid answer from state authorities. This is a commen problem as i have been investigating it in 2 other countries as well. So unless you are in a country like Japan or Netherland, you will never get answer for all your questions. The real problem here is that people that are representing legal authorities, most politicians and even most of their advisors have no clue about Bitcoin.
I do a lot of freelance work in Bicoin business. I called "skatteetaten" a few times in the past to find out more about tax regulations. First, they do not understand, if you try to explain they tell you that there is no legal liabilities for it.
Norway is one of the most heavily taxed country in the world with a total tax burden of roughly 45% of GDP and personal income tax rates border 55% or even higher depending on your income. How stupid is that they can´t hire a few cryptocurrency experts to work in tax department which will end up with them collecting more taxes. So if they do not give a s.it, why would i run after them with money in my hands.
Especially after my recent problems with them.... I give you an advise, in a country where your every single bank transaction is closely watched, make yourself a favour and keep your money in Bitcoin. Remember! Bitcoin is not only about decentralized and cheap currency solution, but also financial Freedom.
I do understand your frustration mate, but it is not right to advice people to hide their assets. Yes, taxes are quite high in Norway, in fact it is one of the highest in the world, but this is also what makes this country such a good place. High standards, good health care, free education and etc. If people start using Bitcoin to hide their assets, it will cause some serious problems in the future. However, i do aggree with you about legal departments not having enough eligiable employements. I just think this think take time, and somehow it takes little longer in skandinavia...
Taxes is the antithesis of anything good. If you want a better society the best you can do is to avoid taxes and encourage others to do the same. The more people who operate outside of the state the better for society. Taxes does not produce wealth, it distributes it. It's a strike of luck that Norway has its oil reserves, but the luck will run out.