Here:
http://www.avalonsguide.com/anab/2010/01/uk-state-pensions-–what-happens-to-it-when-you-emigrate/

The complexities of your final years taxation in the UK is something that can only be figured out when you have to do the tax return. Knowing what we do now, I might try and do things differently – however fundamentally it wouldn’t change our plans significantly.

As ever, research, research & more research.

The information IS out there, it’s just that we have to look for it and ask the right questions. Rather than assume someone will come along with the answers to questions we’ve thought & not asked.

Heck, there were loads of questions we didn’t know the answers to before we moved – hence writing the book

But then, once you go to WINZ to claim your pension, it turns out that your overseas state pension is counted against your NZ pension entitlement, even if you paid mandatory individual contributions into your overseas pension fund, so it’s at least partly your own money set aside for retirement. Too bad it went into a government-administered pension scheme, not into a private investment fund run by, say, a bank.

Theres a full chapter on what happens to your state pension in Avalon’s Guide

Ive spent about 4 years now trying to warn people that you cannot claim 2 state
pensions (Which means its not worth paying into the UK scheme once you emigrate here)

Hint – people thinking of emigrating to New Zealand should buy my book – then they would know stuff like this and not get a shock

Oh yes, the wonderful NZ retirement system. Not means tested and just requiring you to fulfil the age and residency requirement. So you thought.

Just imagine: Your spouse, maybe a born and bred Kiwi who has worked and paid taxes all their life, gets penalised for having married the wrong partner: one who receives a good overseas pension rather than having never worked, never paid into a retirement scheme, but has come to NZ with empty pockets to collect taxpayer-funded NZ Super.

That there is something which means people would return to Somalia, I’m assuming willingly rather than being deported, says it’s not always the life style and Kiwi society that is enough to keep people here.

So;

“A Fifth of immigrants return over sea’s showing a lack of commitment to NZ.” hmm, with approx 1,000,000 kiwi’s living abroad, that shows that ~25% of NZ born people have no commitment here either. So on balance, Immigrants are more committed to NZ than the native population.

With relatively low wages here, many Kiwi’s know they are better off oversea’s. And only go for ‘personal gain’. So lets cancel their passports as they leave the country, then they have to prove their commitment if they want to come back and use NZ as a retirement option, or use the social benefits that tax payers have funded for years while they were abroad. Or perhaps lets just double tax them, they have to pay NZ taxes on their income on top of resident taxes in the country they are working in. That’ll surely show someone’s commitment to NZ by paying double tax!

“migrants coming here for a free education” – well;
1. it ain’t free! Look at all those ‘voluntary contributions’ schools charge.
2. As it happens, the vast majority of potential migrants decide not to move country anywhere, because their kids are at a crucial stage in their education. i.e. Advanced Exams at 18, prep for exams at 17, Basic exams at 16, prep for exams at 14&15, Moving schools at 13, all the way through to about to start school at 5 – you get the picture. And that’s before you consider the needs of children a couple of years behind or in front of the sibling being thought about.

Anyhow, this kind of crap just makes my blood boil! ‘advisers’ here are stoking something for some purpose.. I’m just not sure what it is.