Just been reading this and found it very interesting, I did not defer mine but some of you may need to be thinking about it shortly? Apologies if this has already been covered.
Also worth noting that if at 65 or whatever age you are able to claim state pension and you are in full time employment deciding to continue working, if your employer is happy to allow this, then by defering your state pension and continuing emplyment, I believe you no longer pay national insurance contributions, this in effect would be an additional saving while continuing to work on.
Don't think there'll be one by the time I retire so that's why I started a stakeholder and have a stocks and shares ISA which I'm building as a ready cash supply should I need it.
At present, the life expectancy for someone who just reached state pension age (SPA) is about +20 years. In my opinion it would be best to take it as soon as possible, unless there is a very good reason to delay it.
I know people carry on working for personal rather than financial reasons, but it's still better to take it ASAP. The main downside to taking the state pension while working is you will pay more income tax.
I managed to retire early and won't get the state pension until november this year. Together with my deferred workplace pensions, I will, unfortunately, be paying income tax unless the personal allowance rises considerably. If I deferred any pension past SPA, I'd just end up paying even more tax when they were activated. You can't win.
EDIT: There is a life beyond the workplace....
Just as an afterthought, I can think of only 1 good reason to defer your state pension if it's going to be your only (or main) source of income - and that is to get the money together to top up any gaps in your national insurance contributions, as these are what the new state pension, introduced in April 2016, is based on.
Bless you @c_lockett you sound to me like the sort of person that always makes the best of everything, even if you cannot retire fully, maybe cut your hours? That is what I did. It isn't such a bad thing to be at work, if you like your job, I certainely missed the people and the buzz. Good luck to you