Business Headlines from the BBC

Six million facing new tax bills
HM Revenue and Customs says some 1.4 million people each owe about £1,500 in tax, while 4.3 million will get an average rebate of £418.

UN calls special food price talks
The United Nations' food agency calls a special meeting of policy makers to discuss the recent rapid rises in food prices.

HSBC threatens to quit London HQ
HSBC may quit its London headquarters if the UK government decides to break up big banks, a senior executive says.

Petrobras files $65bn share offer
The Brazilian state oil company, Petrobras, unveils plans to sell up to $64.5bn of new stock, in one of the world's largest share offers.

BP says oil spill cost up to $8bn
BP says the cost of its Gulf of Mexico oil spill has risen to $8bn - a rise of more than $2bn in the last month alone.