if aworker is near retirement age and in afinal salary pension scheme,can anything be added to the final salary as there has been no payrise for over 2 years?
No expert, and my first advice would be to discuss with your pension department, but you are entitled to pay in AVCs up to a limit. I would suspect single large payment boosts ought to be possible also.
In addition to what the others above have said, there are sometimes various 'acceptable' ruses that can be used to boost salary in the final year of employment. One of the ones that I have come across is if their employer allows converting of holiday entitlement into cash (salary). It is PAYE taxable (of course), but it has the effect of driving up the final year's salary.
It will depend on what your employer and the pension trustees permit.