You can't simply claim you are a bitcoinian and now all of your income and assets are referenced to BTC. You are still subject to the currency of your resident country. That is the basis of value reference. Not bitcoin.

Edit: if you bought it, but haven't sold it you haven't realized a profit and don't have to pay taxes on the gains yet, but you definitely have to pay taxes on the income as Bitcoin. If you are buying everything with Bitcoin you have just created an accounting/auditing nightmare for yourself, because you owe additional taxes on asset appreciation every time you "use" it.