BP, like many other international companies, said it expected a positive impact to its US earnings in the long run. But in the short term, lower tax rates will affect its deferred tax assets and liabilities, resulting in a one-off, non-cash charge of $1.5 billion to its 2017 fourth quarter results which are due to be announced on February 8, it said.
"The ultimate impact of the change in the US corporate income tax rate is subject to a number of complex provisions in the legislation which BP is reviewing," BP said in a statement. The British company's shares were down 1.15 percent by 1534 GMT.
The adjustment will not impact BP's cash flow in the fourth quarter. Deferred tax assets refer in some cases to a company overpaying taxes in advance and then getting them back in the form of tax relief. BP has large operations in oil and gas production in the Gulf of Mexico and onshore shale operations as well as refineries that can process up to 746,000 barrels per day of crude oil, according to its website.
Shell said last week it would incur a one-off charge of $2-$2.5 billion, although the new legislation would have a "favourable" impact on earnings. On December 22, Trump signed the tax overhaul into law, cutting tax rates for businesses and offering some temporary cuts for some individuals and families.