Each spouse is taxed as separate individuals. Disposal of asset between spouses give rise to no gain no loss as the transferee is assumed to take over the asset at its Cost.
When the asset is eventually disposed to someone else other than spouse than the gain is calculated based on the original cost of purchase (not transfer).
You pay SDLT if the consideration given in exchange for the share transfer is more than the current SDLT threshold for the property type.
Example 1 - you don’t pay SDLT
A house has a value of £180,000. The owner of the property has equity of £90,000 and an outstanding mortgage of £90,000. The owner transfers a half share of the property to their partner.
Their partner:
•pays cash for half of the equity - £45,000
•takes responsibility for 50% of the outstanding mortgage - £45,000
So the consideration for SDLT is £90,000, made up of the:
•cash payment
•50% share of the outstanding mortgage
£90,000 is below the current SDLT threshold so there’s no tax to pay. You must still tell HM Revenue and Customs (HMRC) about the transaction on an SDLT return.
Example 2 - you pay SDLT even though no money changes hands
The owner of a property valued at £500,000 with an outstanding mortgage of £400,000 transfers half the property to their partner when they marry. Their partner takes on 50% of the mortgage (£200,000).
HMRC charge SDLT on the amount paid for a property or the amount of ‘consideration’ given.
By taking liability for the mortgage, the owner’s partner has given ‘consideration’ of £200,000 for their share of the property which is £1,500 SDLT (0% of £125,000 + 2% of £75,000).
They must pay SDLT on that amount and tell HMRC about the transfer by filling in an SDLT return.
The equity isn’t included in the calculation as you only pay SDLT on the consideration given.
If the transfer is a gift
If the transfer is a gift and there’s no consideration, SDLT doesn’t normally apply.