The Severn Bridges tolls will be cut in January for the first time, as VAT is removed.
Cars heading for Wales will be charged £5.60 instead of £6.70, with vans paying £11.20 – down from £13.40 – and coaches £16.70, currently £20.
UK ministers confirmed it was a step towards abolishing tolls by the end of 2018 revealed in July and their end will save the average user about £1,400 annually.
Welsh Secretary Alun Cairns outlines the changes today in a meeting with the Confederation of British Industry Wales region and said tolls had been “an economic and symbolic barrier to Wales’ future prosperity”.