Sir Keir Starmer and Rachel Reeves have been bombarded with emails demanding that they U-turn over Labour's tax on family farms.

The drive, set up by campaigner and former Reform UK candidate for Mayor of London, Howard Cox, urges people against the policy to email the Prime Minister and Chancellor of the Exchequer to "get the Farmer Inheritance tax policy scrapped".

More than 30,000 have already, with the aim to get to 50,000 by the next protest by farmers in Whitehall tomorrow.

Mr Cox told Express.co.uk: “Over 5,000 farmers are supporters of FairFuelUK backing my hugely successful campaign that has stopped fuel duty hikes for 15 years, and that they have benefitted from.

"I was delighted that hundreds of them asked me to help fight Labour’s crass inheritance tax so I set up an easy way for the public to email the Chancellor and Prime Minister, calling on them both to scrap this needless and spiteful Budget policy.

"Over 30,000 have done so and counting."

The change to inheritance tax for farms was announced by Ms Reeves during her Budget on October 30.

North Northamptonshire Council became the fourth local authority to publicly oppose the policy earlier this week. The council has joined Cornwall, Buckinghamshire and Staffordshire Moorlands in backing farmers opposed to the move.

From April 2026, inheritance tax relief for business and for agricultural assets would be capped at £1million, with a new reduced rate of 20 per cent being charged above that.

This is rather than the standard inheritance tax rate of 40 per cent.

The levy would be payable in instalments over 10 years interest free.

The Government said in November: "This is on top of all the other spousal exemptions and nil-rate bands that people can access for inheritance tax too.

"This means that two people with farmland, depending on their circumstances, can pass on up to £3 million without paying any inheritance tax.

"This is an assumption based on the £1 million limit and nil-rate bands and does not take into consideration the specific circumstances that may affect the tax calculation."

Hundreds of tractors are expected to fill the streets of Westminster for the "RIP British Farming" demonstration tomorrow.