Britain will still be paying the Brexit divorce bill until 2064, new analysis of the deal revealed today.
The Office for Budget Responsibility said most of the £37billion would be paid over the next five years before a long commitment on costs such as pensions.
Britain is better off each year from 2020-21, the analysis says, with an extra £5.8billion available to spend from 2022-23.
Some of the money has already been committed in promises to re-join EU agencies and match farming subsidies.
Britain will still be paying the Brexit divorce bill until 2064, new analysis of the deal by the Office for Budget Responsibility revealed today
Treasury sources said today Britain had negotiated the right to bring payments to an end earlier with a lump sum payment but that it would only do so if it was in the national interest.
Brexiteer Nigel Evans told MailOnline the money would be better paid as a single lump sum and part of the wider exit deal.
He said: ‘UK taxpayers can pay the obligations for the feather bedded pensions for Lord Mandelson and his mates but that can be sorted by actuaries as part of the overall exit package.
‘But Monsieur Barnier must not be allowed to cherry pick – and nothing is agreed until it is all agreed.’
Labour MP and Open Britain supporter Chuka Umunna said: ‘The Brextremists promised us an additional £350 million for the NHS paid for out of our contributions to the EU.
‘Yet we now know that if Brexit goes ahead we’ll be paying money to the EU until 2064 and there won’t be an extra penny for our heath service.’
Best for Britain CEO Eloise Todd said: ‘The OBR report is another absolute Brexit shocker.
‘We already knew that the cost of Brexit would fall on the shoulders of our children and grandchildren – now we’re told that even our great grandchildren will have a bill to pay.
Chancellor Philip Hammond released the OBR breakdown of the Brexit bill alongside his Spring Statement today
‘Far from the fantasy millions promised by Brexiteers, it’s becoming increasingly clear that Britain will be facing a ‘Brexit deficit’. No one who voted Leave was told we would still be paying the divorce bill in 2064.
‘The Government should be honest with the British public: Brexit will leave our country poorer and ensure that the tyranny of austerity is here to stay.’
In its analysis today, the OBR said it now had ‘sufficient clarity’ to estimate the cost of the Brexit ‘divorce bill’ at £37.1 billion.
Based on ‘broad-brush assumptions’, the OBR projected that £16.4 billion would be spent in 2019 and 2020 from ‘UK participation in EU budgets as if it had remained in the EU’.
It said outstanding commitments would cost £18.2 billion between 2021 and 2028.
Over the 45 years from 2019 and 2064 another £2.5 billion will be due as Britain’s share of pensions for EU workers.
Labour MP and Open Britain supporter Chuka Umunna said the figures proved there would be no extra money for the NHS after Brexit