London to lose $900 billion to Frankfurt due to Brexit, German finance group claims

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Lobby group Frankfurt Main Finance claims London's financial sector is poised to lose billions of euros in assets by March 2019.

London is predicted to lose up to 800 billion euros ($909 billion) of assets by March next year, as banks move their business operations to other hubs before Brexit takes place.

Lobby group Frankfurt Main Finance (FMF) released the figure last week, which it calculated based on a confirmation that 30 financial institutions had applied to the European Central Bank to move their headquarters to Frankfurt. It claimed this number would be higher by March and continue to increase beyond Brexit.

The 800 billion euros being moved out of London relates to balance sheet assets such as cash, inventory and prepaid expenses. FMF told CNBC via email that companies were moving those assets from London to Frankfurt so that new offices could meet minimum operational and regulatory requirements.

In the report, FMF Managing Director Hubertus Vath said uncertainty was forcing banks to relocate selected business divisions or their entire businesses out of the U.K. "As long as uncertainty persists, most institutions are likely to prefer the minimum solution. In any case, it is clear that considerable second-round effects will follow," he said.

Several large banks have said they will shift jobs out of London before Brexit kicks in . FMF said it believed up to 10,000 jobs would be moved to Frankfurt ahead of Brexit, and that it expected job relocations to the city to continue until 2024.

However, it's slightly more complicated in many cases as some banks have opened or expanded existing European offices, but they have not announced massive plans to shift staff from London to those locations. Other banks are also looking into larger-scale overhauls of European operations.

Groups representing London and its financial sector told CNBC that the industry was preparing for the worst-case scenario but was yet to feel a major impact of corporate relocations. Catherine McGuinness, a policy chair at the City of London Corporation, said she had not seen fears of substantial job losses materializing.

"Firms are, however, watching closely to see how negotiations between the two sides progress. This will play an important role in determining whether we see more jobs move to the continent after Brexit," she told CNBC in an email.

"London's global financial hub cannot, though, easily be replicated anywhere else on the continent. It is now in everyone's interest to move towards a future agreement which covers financial and professional services — to fail to do so would undoubtedly damage both the EU and U.K. economies, limiting growth and risking jobs."

Stephen Jones, the CEO of trade body U.K. Finance, told CNBC via email that the country's economic future depended on politicians showing pragmatism over ideology and "having an honest debate about the true cost of leaving the EU without a deal in place."

"The finance industry will continue planning to minimize any disruption from a 'no deal' scenario until the agreement has been ratified on both sides of the Channel. During this time it is vital that both the EU and U.K. continue to work together to address potentially critical cliff-edge issues such as cross-border data flows and contractual continuity, to provide customers and firms with sufficient legal and regulatory certainty," he added.

- CNBC's Silvia Amaro contributed to this report.

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