Inequality has grown since the global financial crisis (GFC) and the richest 1 per cent now own half of all household wealth in the world, a report has found.

So much of the world remains relatively poor that it has taken a net worth of just $US3210 ($4400) this year to be among the wealthiest half of all world citizens, according to Credit Suisse's Global Wealth Report 2015.

The richest 1 per cent now have more wealth than the rest of the world. Credit:Bloomberg

And it doesn't take obscene amounts of money to rank among the richest of the world's 7 billion citizens. A net worth of more than $US68,800 puts you in the top 10 per cent of all global wealth holders. Once debts are subtracted, you need $US759,900 to be in the top 1 per cent, the report found.

The boom in wealth at the very top marks the reversal of a trend that had lasted from the turn of the millennium until the financial crisis of 2008-09, analysts said.