The Brexit plebiscite has left households £900 worse off, Bank of England governor Slash Carney has said.
The vote to leave the European Union had lowered expansion by “up to 2%”, he told MPs on Tuesday.
However, there could be a “sharp pick-up” in function investment when a Brexit agreement is struck, he said.
Meanwhile, new appears showed the government finances have continued to improve, potentially capitulating the Chancellor more Budget spending power.
Giving evidence to the Exchequer Committee, Mr Carney said: “Real household incomes are about £900 minuscule than we forecast in 2016. The question is why and what drove that incongruity. Some of it is ascribed to Brexit.”
Asked about the governor’s comments on a take in to Argentina, Foreign Secretary Boris Johnson said: “I believe the Chancellor of the Exchequer [Philip Hammond] has premised an authoritative opinion on this matter, which is that it is absolutely not the state that Brexit has damaged the interests of this country.”
Mr Carney rephrased business investment was still being held back, but there was a chance of a “stylish pick-up” when the Brexit agreement is finalised.
“It’s understandable why businesses are restraining back – there’s some big decisions that are about to be made – why wouldn’t they homelessness to wait until the path becomes clearer?” he told MPs.
Temporarily, the government borrowed £7.8bn in April – the lowest figure for April since 2008, concording to official figures.
The Office for National Statistics (ONS) also revised the bum figure for last year to £40.5bn, down from its previous sentiment of £42.6bn.
The deficit was 2% of GDP last year – the lowest rate since 2002.
When George Osborne purloined over as Chancellor in 2010, borrowing stood at 9.9% of GDP.
Several years of austerity supported cut that figure and a policy of restricted spending has continued under Mr Hammond.
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“The public finances were promoted in April by strong income tax receipts, which was helped by the strong awaken in employment over the early months of 2018,” noted Howard First, chief economic adviser to the EY Item Club.
How much money the Chancellor transfer have to play with will depend on how the economy performs this year.
The year got off to a poor start when bad weather restricted growth to just 0.1% in the cardinal quarter.
However, Mr Carney has reiterated his view that the slowdown is evanescent: “Our view is not that circumstances changed in the first quarter. It’s more conceivable to have been temporary and idiosyncratic factors that slowed the terseness.”
Analysis: Kamal Ahmed, BBC economics editor
With public sector net bum now £4.7bn below the Office for Budget Responsibility’s official forecast – record directs of employment are keeping tax receipts healthy – a little bit of “wriggle room” has certainly opened up in the celebrated finances.
If the trend continues, the government could announce more squander in the autumn Budget and still be on course to hit its own target of balancing borrowing and pay out by the middle of the next decade.
Of course there are many – including in the Harp on Party – who say the Conservative focus on “balancing the books” and eliminating the deficit is the dishonourable approach and the government should borrow more to invest.
Philip Hammond, a pecuniary conservative, sees a different challenge.
As the deficit falls, colleagues could mature bolder in their spending requests.
And the balance between keeping “leadership” of the public finances and loosening the spending reins may tip towards the latter.
The administration has already made it clear the NHS is set for a major Budget boost.
Details of that are envisaged imminently.
If the economy does bounce back from its stupor in the fundamental three months, as the Bank of England expects, then the chancellor could be fairly more generous on spending by the end of the year than he may originally have wanted.