user46122: Lets say if 1 BTC = $1000USD tomorrow and I have around 1000 BTC, how would I sell my 1000 BTC to put $1,000,000USD in my bank account? 
Even a better hypothetical question.
If I go back in time and buy 10,000 bitcoins for half a dollar (USD) back in 2009 and wish to cash it on 2013 when 1BTC was around a grand, whom or how would I sell all my BTCs to get the maximum profit? How much should I have paid in taxes?

user44818: A lot of exchangers have such liquidity but you will encounter issues with withdrawal limits depending on your verification level. Also I don't think you can expect transfers of that magnitude to happen at once - they will likely chunk it out by agreeing it with you.
As for the tax, it all depends where you live as I believe you will be taxed on income.
We all wish we could go back in time - however you have to look to the future, what tells you 1 Bitcoin won't be worth $100,000 in 5 years time?

46122: <p>Lets say if 1 BTC = $1000USD tomorrow and I have around 1000 BTC, how would I sell my 1000 BTC to put $1,000,000USD in my bank account? </p>

<p>Even a better hypothetical question.</p>

<p>If I go back in time and buy 10,000 bitcoins for half a dollar (USD) back in 2009 and wish to cash it on 2013 when 1BTC was around a grand, whom or how would I sell all my BTCs to get the maximum profit? How much should I have paid in taxes?</p>
 44818: <p>A lot of exchangers have such liquidity but you will encounter issues with withdrawal limits depending on your verification level. Also I don't think you can expect transfers of that magnitude to happen at once - they will likely chunk it out by agreeing it with you.</p>

<p>As for the tax, it all depends where you live as I believe you will be taxed on income.</p>

<p>We all wish we could go back in time - however you have to look to the future, what tells you 1 Bitcoin won't be worth $100,000 in 5 years time?</p>
