More than 100,000 people in the north of Scotland will be hit by Tory pension amendments, according to fresh analysis by the House of Commons Library.
The change will affect all men and women currently between the age of 39 and 47, who will be forced to work a year longer before they can access their state pension entitlement.
Shadow Scottish Secretary Lesley Laird MP said Labour has pledged to leave the state pension age at 66 while reviewing the evidence emerging around life expectancy.
She said: “This is yet another disgraceful and unjustified attack on the state pension by this Tory Government, which is asking millions of people to work longer to pay for its failing austerity plans.
“The latest research on life expectancy, published days ago, shows there is no evidential basis for bringing the state pension age further forward.
“That’s why Labour wants to take a measured approach, leaving the state pension age at 66 while we review the evidence emerging around life expectancy and healthy life expectancy, considering how we can best protect those doing demanding jobs and the contributions they have already made.”
In Scotland, 611,000 Scots will lose out by the Tory government’s decision to bring forward the state pension age last week.
There will be 109,000 people in the north affected, including 13,000 in the Gordon constituency, 12,600 in West Aberdeenshire and Kincardine, 11,200 in Aberdeen North and 11,200 in Aberdeen South.
There will be 9,400 people in Angus affected, 8,800 in Argyll and Bute, 10,700 in Banff and Buchan and 10,900 in Moray.
Further north, Ross, Skye and Lochaber has 7,200 expected to be affected,
In Caithness, Sutherland and Easter Ross, the figure is anticipated to be 6,000, with a figure of 3,000 in Orkney and 5,000 in Shetland.
A Department for Work and Pensions spokesman said: “These changes will ensure the state pension is both fair and sustainable for future generations.
“Those affected will on average still receive the state pension for longer than the generations before them.
“Under the simplified new state pension at its basic level, people in retirement will receive over £1,250 a year more than compared to April 2010.”
The announcement followed evidence from the renowned expert on life expectancy, Professor Sir Michael Marmot, who described how a century-long rise in life expectancy was ‘pretty close to having ground to a halt’.