Yesterday’s debate about an online petition with around 140,000 signatures to date was notable for the almost complete agreement of MPs from both the Conservative and Labour sides that an extension of some kind was necessary.

MP after MP spoke about the importance for the wider economy of avoiding housing market instability, while many spoke of the circumstances of their constituents; there had been substantial industry lobbying and genuine public interest ahead of the debate.

Financial Secretary to the Treasury Jesse Norman - responding for the government - surprised no one by saying he could not commit to any particular policy ahead of next month’s Budget. 

But he did make an interesting comment when he said the government in general and HM Treasury in particular would note the public’s views and MPs' views carefully, and would consider ‘substantial performance’ as well as ‘completion’ when looking at what to do about the holiday.

That ‘substantial performance’ element refers to the many MPs who in the debate spoke of the possibility of a tapered end to the exemption, where buyers who had reached a certain stage of their transaction would still get the SDLT discount - even if completion had to be after March 31.

HM Treasury’s own advice to its ministers and civil servant says that ‘substantial performance’ is acceptable as a legal term alongside completion. “A contract will be substantially performed where the purchaser obtains ‘the keys to the door’ and is entitled to occupy the property” the Treasury guidance says.

After the debate Mark Hayward - Propertymark’s chief policy adviser - issued a statement saying: “We welcome [the] important debate on the issue of the stamp duty holiday, and are pleased to see that there is clearly cross-party support for a holiday extension or tapered end given the concerning cliff-edge is now only two months away.

“The housing market boom, caused by the stamp duty holiday, has been hugely beneficial; however, the stamp duty cliff edge on the 31st March could cause thousands of sales to fall at the final hurdle and have a knock on and drastic effect on the housing market which has recovered well from the Covid slump.

“We are continuing to call on the government to rethink these timings, so pressure on the system can be released to allow transactions to complete and avoid a disorderly and distressing period for movers and businesses throughout the market.”

If you missed yesterday's one hour debate, you can see a written summary here, and watch the whole debate as-live on video here.