5
1
When we buy BTC using USD on MtGox,
Does MtGox charge 0.6% of the USD then do a trade, or does MtGox do a trade first, then charge 0.6% of the BTC we receive?
Similarly, when we sell BTC for USD on MtGox,
Does MtGox charge 0.6% of the BTC then do a trade, or does MtGox do a trade first, then charge 0.6% of the USD we receive?
6
Mtgox charges the fee from whatever you're buying.
So if you buy 100 btc for however many USD, you'll buy the BTC, then you'll be charged 0.6% of your 100btc as fee.
If you buy 100 USD for however many BTC (i.e., sell some btc), you'll get your USD, and will be charged 0.6% of your 100USD as fee.
Edit: This is actually configurable. If you go to the mtgox settings page in your account, you can set the fee to be taken out either as above (default), or out of your USD balance always.
2
The fee is a percentage of whatever you are buying. Here is their Fee Schedule: https://mtgox.com/fee-schedule
2Do they document this somewhere? – Pacerier – 2013-04-20T05:04:39.753
2Yes, it is documented in the tooltip in your mtgox settings page, where you can configure how the fee is taken. – nanotube – 2013-05-05T17:29:24.897
do all the exchanges work this way? where they take the fee out of the amount you are obtaining? – chovy – 2013-11-25T07:39:07.607