By Staff, Agencies

Britain's new government on Friday unveiled a multi-billion-pound package to support households and businesses hit by the highest inflation in decades, cutting taxes as the nation heads for recession.

Finance minister Kwasi Kwarteng, fresh from being appointed by new Prime Minister Liz Truss, said caps on soaring energy bills would cost £60 billion [$68 billion] in the first six months.

The costly plan aims to boost economic growth -- but sterling collapsed to its lowest level against the dollar since 1985 as traders fretted over its impact on public finances.

"The PM has acted with great speed to announce one of the most significant interventions the British state has ever made," Kwarteng told parliament in a so-called mini budget.

"People need to know that help is coming."

In a controversial move as millions of Britons face a cost-of-living crisis, Kwarteng axed an EU-inherited cap on bankers' bonuses following Brexit to bolster the financial services sector.

He brought forward a plan to cut the lowest rate of income tax, and reduced the highest to 40 percent from 45.

The chancellor of the exchequer also reversed a planned increase in tax on company profits signed off by Truss's predecessor Boris Johnson.

He had announced Thursday that he would scrap a tax on salaries, reversing a 1.25-percentage-point rise in National Insurance implemented by predecessor Rishi Sunak.

It comes as economists warned that Britain was likely already in recession, with rocketing fuel and food prices taking their toll.

In an ominous sign, the pound tanked to $1.0897 -- the lowest level since 1985 -- and London's stock market sank more than two percent as recession fears mounted.

Kwarteng also lifted the point at which tax is levied on purchases of residential properties, as soaring interest rates put the brakes on the housing market.

Britain will meanwhile reintroduce VAT refunds to tourists, a scheme which had previously been scrapped following Brexit.

Kwarteng released his plan a day after the Bank of England suggested the country was slipping into recession as it hiked interest rates again to tame red-hot inflation.

With prices soaring, Britain on Wednesday announced a six-month plan to pay about half of energy bills for businesses.

Truss had already launched a two-year household energy price freeze. The caps will not kick in, however, until Britons face another large hike in gas and electricity bills from October.

The average household will have their annual energy bill capped at £2,500 until 2024 but many are expected to spend above that to keep homes warm over the winter.

Wholesale electricity and gas prices for companies -- as well as charities, hospitals and schools -- will also be capped.

Yet UK energy firms including BP and Shell will not get the cap, as their profits jumped after Russia's war in Ukraine sent oil and gas prices soaring.