The best way is to not convert it back to Euros. Why pay to do that when you can spend the money directly? There are tens of thousands of outlets that take BTC. It is the only money I use online.
This is an answer that caught my eye, since I have a similar dilemma: how to handle Bitcoin spending and tax.
If I buy something from an online store using Bitcoin, is it considered somehow tax free, is it considered some sort of exchanged between goods?
Can somebody enlighten me? Because this would be "too good to be true".
1) Reply to first post of the thread:
Sell a portion when price is highest in say a weeks price range. i.e. sell half your bitcoins at the exchange....wait a few days for a dip and then buy again with all or part of that fiat you have from having sold half before. The point is you don't want to reduce the number of bitcoins because, as someone has said, it is most probable that they will be worth even more in the near or distant future. If you have sold half then bought the same amount of bitcoins when there's a dip, you will still have some fiat cash left which you may spend knowing you are still long on bitcoin as you should be.
2) Reply to post about whether Bitcoin is tax free: Not sure if you are referring to the tax when you buy a product. As far as I know if you buy from any store in Europe that accepts bitcoin they will charge you the normal price, including the sales tax that you would pay normally had you made the purchase with fiat in the first place. That is, they will charge you the price of the product in bitcoin at the equivalent exchange rate of euro to bitcoin they use. So in that sense, no, bitcoin is not going to be like buying duty free like you do at duty free places at airports. Now, if you are referring to some other type of tax, like taax on whatever gains you might have made between price you bought bitcoins and sale price of them...up to you to see that.
Also, regarding spending your bitcoin directly anonymously I think some of the debit bitcoin cards (VISA, MASTERCARD types) have the option of buying unnamed anonymous cards. There's plenty of information in these forums in threads such as
https://bitcointalksearch.org/topic/list-of-bitcoin-debit-cards-1242788Also look up halcash which is system to receive fiat from bitcoin at any ATM. Not anonymous for the receiver (person who takes out the fiat from the ATM) because you will have to input your mobile phone number but it can still be handy, also of course bitcoin machines all around Europe...