I don't see the problem you have Murphapy, your previous Irish contributions combined with your German contributions will give you the full state pension eventually. That's the beauty of the the European union. You don't need to make Irish Prsi contributions.
You don't get a single pension at the end. You get a pension from each and every member state on a pro rata basis which you apply for through the responsible agency in the country you live in or the last EU country you worked in. They have to then deal with your previous country's agencies to be able to determine the payments, but it's not a single "EU pension"-no such thing exists. The Irish state pension is simply extremely generous compared to the German one for someone who can get one by making the minimum contribution.
German pension is based on actual money put into it (capped) so the more you earn during your working life and therefore the more German PRSI you pay into the pot, the more you get in your pension when you retire but the return is considered poor compared to many private schemes.
The Irish system works on an "averaged contributions" basis, so low earners, high earners, doesn't matter: so long as you make your averag 48 contributions per working year (since starting insurable employment in Ireland!-someone starting to work at age 55 in Ireland can avail of a FULL state pension-this is impossible in Germany) we all get the same state pension (currently €230 pw).
The Irish state pension, being so generous compared to what you can put into it, is therefore extremely attractive. The German state pension is not very attractive at all and even though Germans and people who have made at least one insurance payment in Germany can voluntarily continue to pay into it, there's very little reason to do so unless you have less than 5 years (their min. qualification period) of EU wide national insurance payments made and are leaving the EU completely and are unlikely to return.
The UK state pension is also a good RoI if you can make the minimum NI contribution to avail of it, so many Brits continue to pay voluntary NI payments in order to get it, especially if they leave the UK in their 30's or 40's.
In any case I certainly doubt if paying €253 a year would help, that makes no sense to me that a low amount such as that would equal a pension eventually.
It does in the UK system anyway.
If it's something that you are worried about then you should contact the pensions office in Sligo for the rules, they must have a booklet on people who contribute in Ireland, another EU country and how to make voluntary contributions.
You can't do it in Ireland. They prohibit it.
Under EU legislation it not possible for a person to be subject to the social insurance systems of two or more member states at the same time. This means that you cannot pay Voluntary Contributions in Ireland at the same time as you are in insurable employment, self-employment, receiving credited contributions or paying Voluntary Contributions in another EU member state.
http://www.welfare.ie/EN/Topics/PRSI/Pages/volcons.aspx
Personally I think Irish state pensions are not going to be sustainable at current levels so one must make other provision.
I agree, but even a reduced pension (say €100 pw in today's money-that's a huge cut from the current level) would be a very good RoI if you could avail of it with a minimum PRSI contribution of €253 (class S, think it's €317 for class A) a year!
I'm not concerned about my retirement at the moment. Have enough bricks and mortar to top up my German and Irish (presuming they don't change the rules again and nullify my 600 something class A contributions) pensions and have a small DC private scheme from ca. 8 years of employment with a multinational where it was compulsory to contribute.