Mr PM,
I think it is, based on RPSM4104930, but that was why I asked how he planned to fund his £50k contribution.
This is from RPSM4104980
"Example 2 - Other money available when pension commencement lump sum used to fund increase in contributions
An individual intends to use a pension commencement lump sum of £35,000 that he is able to take from a registered pension scheme to fund a significantly greater contribution of £40,000 to another registered pension scheme in the run-up to the end of the 2006/07 tax year. The individual has more than £40,000 available savings and so could make that contribution using those savings, but to do so would mean using up most of those savings, and so instead takes the £35,000 pension commencement lump sum and uses that. The fact that the individual had other available money that could have funded the significantly greater contribution does not mean the recycling rule is avoided.
The recycling rule would also apply if, instead of funding the contribution directly from the lump sum, the individual takes the money that pays the contribution out of the available savings, and then, uses the £35,000 pension commencement lump sum to replenish those savings.
Despite paying the increased contributions from existing savings, the recycling rule is triggered because the individual always intended the pension commencement lump sum to be an integral aspect of providing the means, albeit in an indirect way, to pay those increased contributions.
In both situations in Example 2, the significantly greater contribution is made “because of” the pension commencement lump sum, and this was planned by the individual from the outset.
But, as RPSM04104925 says, it is not enough to establish that recycling has occurred for the pension commencement lump sum to be paid into the same bank account as that from which the savings were taken to pay the increased contributions. This does not of itself mean that the contributions have been made “because of” the lump sum. HMRC has to show that the individual intended to use the lump sum as the indirect means of making those increased contributions. "