The strong financial performance will allow for increased provincial and domestic game funding and an additional €1million investment in the Union's club loan scheme.
However, Honorary Treasurer Tom Grace urged caution based on the fragility of the wider economic recovery and the potential impact of changes to 'free-to-air' broadcasting rules and possible limitations to sports sponsorships agreements.
"Success off the pitch was matched by big performances on it and the RBS 6 Nations prize money, in particular, has provided a welcome boost.
"The 2013/14 season demonstrated once again that supporting the national team at the Aviva (Stadium) enables the IRFU to continue to make significant funds available to the professional and domestic games."
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