wife buys husnband's share of house? CGT? stamp duty?

The best people to tell you are HMRC, however:

seems to apply, which seems to suggest that there will be no immediate liability, but there is likely to be a correspondingly greater liability when she sells it. It does suggest to me that you will have to submit a tax return and fill in the CGT pages, as, although there may be no tax payable, the size of the transaction is likely to be sufficient to trigger a reporting requirement.

confirms the above and suggests the answer to the (2) is yes. However, that probably depends on whether she is really buying out. You should probably ask the solicitor who is doing the conveyancing. I don't think there is going to be enough here to answer this and it is likely to hinge on what the HMRC consider to be a gift.

our home. There is no mortgage on it.

o 'buy out' my share of the house and for her to become the sole owner of i t.

Thank you for your helpful reply, and for the links. In this case it is de finitely not a gift; she is actually going to buy my share of the house. I t is likely, however, the the price she will pay for my share (the 'conside ration') will be below £250k so it might be below the SDLT threshold.

Robert