(Corrects pronoun in paragraph 15)
By Bernardo Vizcaino
June 13 (Reuters) - Firms involved in Islamic finance are lobbying the British government for tax reforms, arguing that the treatment of some sharia-compliant structures is hindering their growth.
Britain has actively pursued Islamic finance to become the Western world's biggest hub for it and banks are now seeking to ensure tax parity in areas such as mortgage refinancing as they compete head-on with their conventional peers.
Islamic finance forbids interest payments and transactions often require multiple title transfers of underlying assets, which can trigger double or even triple tax charges.
More than 20 firms, including Gatehouse Bank, Bank of London and The Middle East, Abu Dhabi Islamic Bank and Qatar Islamic Bank, offer Islamic financial products in Britain.
The country has previously addressed the adverse tax treatment for Islamic bonds and residential mortgages, helping Islamic banking assets reach more than $5 billion pounds in 2016, while London has attracted over 65 listings of Islamic bonds worth a combined $48 billion, lobby group TheCityUK said.
But this has created concerns over refinancing mortgages or switching them from a conventional to an Islamic bank, which can trigger capital gains taxes, said Samir Alamad, head of sharia compliance and product development at Birmingham-based Al Rayan Bank, which is owned by Qatar's Masraf Al Rayan.
"This is the more pressing issue as it is affecting Islamic banks and their customers," said Alamad, one of those lobbying British tax authorities. Taxes on investment property and commercial finance also need clarification, he added.
In the short term, the government could amend the Finance Act, but a longer-term solution may require a broad framework to address all types of Islamic transactions, Alamad said.
The British tax authority, Her Majesty's Revenue and Customs, told Reuters it wanted to ensure that tax consequences of refinancing Islamic mortgages are not disadvantageous when compared to standard mortgages and that work was ongoing.
The Chartered Institute of Taxation, a British professional body, has also presented a submission to authorities which some think could open the way to change on Islamic finance.
"It may only be a matter of time before current legislation is amended to provide further express reliefs and clarity," said Imam Qazi, partner and Islamic finance lead at law firm Foot Anstey.
Taxation is becoming more pressing because their product range has expanded and now includes savings accounts, home purchase plans, a pension scheme and business start-up financing, said Qazi.
Gatehouse recently introduced buy-to-let finance and plans to offer home owner finance through brokers, Qazi said.
Rosette Merchant Bank, a sharia-compliant firm, plans to diversify its client base beyond the Gulf to tap southeast Asian markets such as Malaysia, said chief executive Sam Broadhead.
The firm closed around 200 million pounds of investment deals in the past 12 months, she said.
"We are looking to expand outside our core real estate offering into other innovative sharia-compliant investment areas, for example a fintech supply chain finance solution and several capital markets projects."
Abu Dhabi Islamic Bank is working on a new home finance product, while Bank of London and The Middle East is expanding its wealth management business.
There are concerns that future changes could also have an impact on the sector.
The government's 2017 budget has proposed changes starting from 2019 to the tax status of non-resident investors and the way they are taxed on real estate disposals.
Law firm Ashurst says such changes could affect many Middle East Islamic investors who buy into real estate through unit trusts and offshore funds. (Reporting by Bernardo Vizcaino; Editing by Andrew Torchia and Alexander Smith)