If you have paid Additional Volunatry Contributions (AVCs) previously
If you have paid AVCs to the LGPS in England or Wales, the value of your AVCs must be transferred to an AVC arrangement offered by your new administering authority if rejoin the LGPS and combine your main scheme benefits.
If you have paid AVCs to a scheme (other than to the LGPS in England or Wales) or you have paid Free-Standing AVC (FSAVCs) you can, if you wish, transfer them into the LGPS to buy extra LGPS pension. You have only 12 months from joining the LGPS to elect to transfer your previous AVC rights to buy extra LGPS membership, unless your employer and your administering authority allows you longer. This is a discretion. You can ask your employer & your administering authority what their policy is on this matter.