The costs of the seven-week trial will not be adjudicated upon until Monday week. However, if they are all awarded against her, Ms Beverley Cooper-Flynn could face a bill of about £1.5 million, according to best available estimates.
The case continued for 28 days - the longest libel trial in the history of the State. It followed a three-day hearing in the High Court where RTE obtained discovery of National Irish Bank documents.
There were 16 witnesses, more than 10,000 pages of documents and three legal teams.
Up to now, the longest libel trial was the case between the then leader of Democratic Left, Mr Proinsias De Rossa, and the Sunday Independent. There were three trials in that case, lasting 15, eight and 11 days respectively, and a three-day Supreme Court appeal.
But the RTE/Cooper-Flynn case is the longest single libel hearing.
In general, libel fees are in the top range of legal fees, as these cases involve high-profile specialist barristers. Ms Flynn employed one of the biggest firms of solicitors in the State, McCann Fitzgerald, and it briefed one of the best-known libel barristers, Mr Garret Cooney SC, along with another senior counsel, Mr Hugh Mohan.
They also had the services of a junior counsel.
RTE employed its firm of solicitors, Eugene Collins and Co, and briefed Mr Kevin Feeney SC, another highly experienced libel lawyer who acted for Independent Newspapers in the De Rossa case, and Mr John Trainor SC. Another veteran of the De Rossa case, Mr Paul O'Higgins SC, represented Mr James Howard, who had his own solicitors. Both also had junior counsel.
Professional fees for solicitors in a case like this would, according to one solicitor in the field, run to about £200,000. Between the two sides, therefore, the solicitors' fees would cost close to £500,000.
The brief fee for senior counsel would be between £25,000 and £50,000. The barrister is then paid between £3,000 and £4,000 a day as a "refresher" fee for every day after the opening day in court; the junior counsel receives two-thirds of the senior fee.
This means that each senior counsel in this case could expect fees of between £100,000 and £150,000, and each junior counsel between about £70,000 and £100,000. With five senior counsel and three junior counsel, total counsel fees may run to over £750,000.
Overnight transcripts were being produced in this case, so they would have cost about £30,000.
The full bill will therefore be close to £1.5 million. However, lawyers sometimes do not charge full fees to a plaintiff who loses a case.