LONDON, July 11 (Reuters) - The former finance boss of Autonomy has been banned from Britain's accountancy profession in the latest fallout from a long and bitter legal battle over the software company's $11 billion purchase by Hewlett-Packard (HP) in 2011.

Sushovan Hussain, who was convicted of fraud in the United States in 2018, served a five-year jail sentence and faced penalties of around $10 million, will be barred for another 14 years, the Financial Reporting Council's (FRC) executive counsel said on Thursday.

Hussain's ban comes one month after Autonomy founder Mike Lynch was acquitted of fraud by a San Francisco jury.

The sale of Autonomy, once Britain's biggest software group and a member of the blue-chip FTSE 100 index, was one of the biggest UK tech deals at the time. But it turned sour after HP wrote down Autonomy's value by $8.8 billion within a year.

Prosecutors had alleged Lynch schemed to inflate Autonomy's revenue. On the stand, Lynch said he had focused on technology and entrusted money matters and certain accounting decisions to Hussain.

Having failed to appeal against his conviction, Hussain has accepted that his U.S. sentence amounts to evidence of misconduct and has paid 450,000 pounds ($579,150) towards the costs of the investigation, the FRC's executive counsel said.

Hussain, who will not also face a fine in Britain, was suspended as a member of the Institute of Chartered Accountants in England and Wales (ICAEW) in November 2018 and will be barred until at least November 2038, the FRC's executive counsel said.

Deloitte, Autonomy's former auditor, was fined 15 million pounds and two former partners were ordered to pay 500,000 pounds and 250,000 pounds respectively, the FRC said in 2021.

Reuters was not immediately able to reach Hussain.

($1 = 0.7770 pounds) (Reporting by Kirstin Ridley Editing by Mark Potter)