The UK’s tax burden is to rise to its highest level since the 1960s, the Office for Budget Responsibility has said, after the chancellor set out plans to repair the nation’s finances.
Rishi Sunak used Wednesday’s Budget to extend the furlough scheme and higher universal credit payments.
But taxes on large company profits will rise in 2023 and 1.3 million more people will start paying income tax.
Mr Sunak said some of his decisions may not be “popular” but were “honest”.
Further analysis of the Budget will be published on Thursday.
The headline rate of corporation tax will go up from 19% to 25% from 2023, although smaller firms will be exempt, while income tax thresholds will be frozen.
The freeze on income tax thresholds is expected to bring 1.3 million more people into paying income tax and a million more into paying at the higher rate.
The Office for Budget Responsibility (OBR), the government’s fiscal watchdog, said the measures, along with cuts of around £4bn from departmental spending plans, would raise a total of £31.8bn in 2025-26.
The watchdog said the tax burden would rise from 34% of gross domestic product – a measure of the size of the economy – to 35% in 2025-26, “its highest level since [Labour’s] Roy Jenkins was chancellor in the late 1960s”.
Mr Sunak told MPs the total package of measures to support the economy – including those previously announced – amounted to £407bn, but warned the unprecedented spending could not continue.
Defending the increase in the tax burden at a Downing Street briefing, he said: “I don’t think any other chancellors have had to do as much fiscal support for the country as I’ve had to.”
The Institute for Fiscal Studies think tank said the UK’s tax burden was set to rise to its “highest sustained level” ever.
The point at which people begin paying income tax will increase by £70 to £12,570 in April, but will be maintained at that level until April 2026, meaning more people will become eligible to pay tax as wages increase.
The 40p rate threshold will increase by £270 to £50,270 and then be frozen, with the measures expected to raise almost £8.2bn in 2025-26.
Elsewhere in the Budget, the chancellor extended the furlough scheme to September, paying up to 80% of people’s wages – and announced further grants for self-employed people, with the scheme widened to include 600,000 who were not previously entitled, including many newly self-employed people.
He also extended the £20-a-week top-up to universal credit for six months.
Other Budget measures include:
Mr Sunak was said to have received a warm reception at a meeting of the influential 1922 committee of Conservative backbenchers on Wednesday night, the BBC’s political correspondent, Jessica Parker, said.
But one senior Tory said they would want to pore over the details further, especially the future hike in corporation tax.
Confederation of British Industry director-general Tony Danker said the rise in corporation tax would “cause a sharp intake of breath for many businesses and sends a worrying signal to those planning to invest in the UK”, although he welcomed measures to protect the economy now and kick-start the recovery.
But Mr Sunak insisted the UK would still have the lowest effective corporation tax rate in the G7 group of industrialised economies.
The OBR expects the economy to return to its pre-Covid level by the middle of next year, six months earlier than previously forecast as part of a “swifter and more sustained” recovery, largely as a result of the vaccine rollout.
But in five years the economy will still be 3% smaller than it would have been if the pandemic had not struck.
Labour leader Sir Keir Starmer said the Budget was a “quick fix, papering over the cracks” which “didn’t even attempt to rebuild the foundations of our economy or to secure the country’s long-term prosperity”.