An unconditional basic income (also called basic income, basic income guarantee, universal basic income, universal demogrant, or citizen’s income) is a form of social security system in which all citizens or residents of a country regularly receive an unconditional sum of money, either from a government or some other public institution, in addition to any income received from elsewhere.
An unconditional income transfer of less than the poverty line is sometimes referred to as a "partial basic income". Basic income systems that are financed by the profits of publicly owned enterprises (often called social dividend or citizen's dividend) are major components in many proposed models of market socialism. Basic income schemes have also been promoted within the context of capitalist systems, where they would be financed through various forms of taxation.
I don't see anything in the SocDems manifesto about it, so that translates into 'no current position'. My understanding of the current status (I'm a volunteer in a SocDem constituency branch) is that the current focus is on building our branch structure, building a national structure to address policy questions and preparing for the next election, by that in 5 years or 5 weeks. There's quite a lot of detail in the manifesto about a range of policies, and enough detail to bring people together for more detailed discussion on other areas. It's not practical yet to have a policy on every other area since the party has no funding for any admin staff for co-ordination (in contrast, I've heard that Fine Gael have 9 media staff). Again, this isn't any kind of official statement, I'm just a volunteer answering an old thread with my personal opinion.