Jane Dodds has written to the Rural Affairs Minister to ask how many farms in Wales will be affected by proposed changes to APR (Agricultural Property Relief).
Chancellor Rachel Reeves announced in the Autumn Budget that farmers and growers would have to pay 20 per cent inheritance tax on farms worth more than £1 million.
The Welsh Government has now been urged to clarify how many farms in Wales will be affected by the ‘Family Farm Tax’.
The calls come after farming unions rebuked claims from the UK Government and Welsh Secretary Jo Stevens that only a minority of farmers will be affected by the new rules.
Ms Stevens told Sunday Politics: "Three quarters of farmers will be unaffected.
"This will impact only on the wealthiest farmers in the United Kingdom and we know the vast majority of our farmers in Wales are small farms.
"We don't expect that there will be a significant impact on farmers in Wales,” she said.
NFU Cymru and the NFU have organised a mass lobby of MPs in response to the “misguided and ill-thought-out” proposals next week.
More than 160,000 people have also added their name to a petition to stop the tax.
The FUW said the Budget leaves the future of many Welsh farms “in the balance”.
Both unions have expressed their concerns that the proposals will cause “lasting damage to Welsh farming.”
Mid and West Wales MS Jane Dodds has now written to the Cabinet Secretary for Climate Change and Rural Affairs Huw Irranca-Davies to express her concern over the “untold damage that farming communities throughout Wales will face as a consequence of the UK Government’s most recent budget.”
In the same letter, Ms Dodds pressed Mr Irranca-Davies to confirm how many Welsh farms will be affected by the new inheritance laws.
“We cannot afford to leave our farming communities in the dark when it comes to the impact of this potentially devasting new tax law,” she said.
“Both our farmers and the Welsh Public deserve to know the truth that lies behind Labour’s claims that only a small amount of farmers will be impacted by the Family Farm Tax.
“Claims that, I should add, have already been disputed by both NFU Cymru and the FUW.
“The uncertainty surrounding these new inheritance laws will place more unnecessary pressure on farmers across Wales, many of whom are already struggling under a cloud of financial pressures.”