GPs who retired in this period will receive top ups worth up to 20 per cent of their pension after the GPC won a High Court battle to prevent the DoH imposing a cap.
The uplift is pushing some GPs over the pensions tax threshold - the lifetime tax allowance (LTA) - introduced in 2006, exposing GPs who do not protect themselves to tax charges of 55 per cent.
'Anyone with a pension over £56,000 before the changes potentially comes into the new bracket and needs to act,' said Stuart Williamson, partner at medical accountants WilliamsonWest.
Steve Caps, of medical accountants Ramsay Brown and Partners, said GPs with smaller NHS pensions and private cover also need to protect themselves.
Under rules introduced two years ago, pension funds are tax free if they were worth less than the LTA limit of £1.5 million on 5 April 2006. Above the LTA, they are taxed at 55 per cent.
All GPs who receive an uplifted pension must make an LTA declaration to NHS Pensions by early November, warns Mr Williamson. They must also apply in this financial year to HM Revenue and Customs to have their pension capital protected against tax charges.
'It is inevitable that some people will find themselves with a tax charge they were not expecting,' Mr Caps warned.
'Do not ignore the letters from the Pensions Agency. Assume you are affected even if you may not be,' he said.
The Pensions Agency is revising the earliest pensions first and Mr Caps advises all GPs who retired between April 2004 and April 2006 to ask the Pensions Agency for a calculation of their revised pension and lump sum at 5 April 2006.
PENSION TAXATION: 55% tax could apply to pensions
Source: HM Revenue & Customs.
Comment below and tell us what you think