Many farmers protesting over Government changes to inheritance tax are “wrong” about the policy, the Environment Secretary has said.

Steve Reed rejected claims that many in the sector will be affected by plans to limit 100% property relief to the first £1 million of agricultural assets.

The remarks are likely to anger some farmers who have been taking part in large-scale demonstrations across Westminster to urge the Government to reverse the policy announced in the October Budget.

Ministers say the vast majority of farms will not be hit by the changes, but many in the sector have said they will be forced to sell off land to meet the costs.

Appearing before MPs on the Environment, Food and Rural Affairs (Efra) committee on Tuesday as thousands of farmers marched on Westminster demanding a U-turn, Mr Reed was asked whether they were wrong.

(Image: PA)

He said: “Well, assuming these projections from HMRC, validated by the OBR and IFS, are correct then many of them, probably happily, are wrong because there are things that they can do to plan their tax affairs as most businesses or asset owners would do to limit their liability.

“The numbers I’ve heard bandied around are enormous and very, very frightening if people were to believe them.”

Speaking to the PA news agency earlier, the Cabinet minister insisted that only a few hundred farms would be impacted, rather than the tens of thousands claimed by critics.

“The Government’s been very clear: about 500 farms will be affected and the vast majority of farms will pay nothing more under the new scheme,” he said.

“That figure has been validated now by the independent Office for Budget Responsibility and by the independent financial think tank the IFS.

“There are all sorts of other figures flying around that I don’t recognise.

He dismissed opposition accusations that Labour does not understand the countryside, citing the announcement of £5 billion in the Budget to support sustainable food production in the UK.

“That’s the biggest budget of that kind in our country’s history and it shows that we’re backing farmers,” Mr Reed said.

“We’ve gone further than that as well, £60 million to help farmers affected by flooding, we’re going to cut farmers’ energy bills by setting up GB Energy, we’re going to seek a new trade deal with the European Union so we can get food exports moving across the border again and we’re launching the first-ever cross-government rural crime strategy.”

The Tories have said the Government “broke its promise” before the election not to interfere with agricultural property relief.

Industry leaders have accused Chancellor Rachel Reeves of refusing to engage over the issue.

Speaking to journalists in Westminster, National Farming Union president Tom Bradshaw said: “The longer they leave this hanging, the more I start to think it’s vindictive, rather than miscalculated.”

But ministers have argued the money is needed to help plug a £22 billion black hole in the public finances which only became apparent after they entered government.

The IFS, which has been calling for reforms to inheritance tax, backed the Government’s measures.

David Sturrock, senior research economist at the think tank, said: “If we have an inheritance tax it should apply equally across all types of assets.

“Exemptions and reliefs cause unfairness and distort ownership and investment in undesirable ways.

“Inheritance tax relief for agricultural and business assets provides a tax incentive for wealth to be held in these forms and for land to be used for agricultural purposes by those who want to pass on wealth to their heirs.”

Mr Sturrock said that if the Government wanted to boost agricultural production it could do so by explicitly targeting support towards certain activities, which would be “fairer”.

“As with most tax changes, some will lose out,” he said.

“The question of whether farmers or farming activities should be supported in some other way instead does not alter the case against these unfair and distortionary reliefs.”