In a letter to Mr Swinney, Mr Alexander highlighted warnings from Jefferies Bank and Strutt and Parker that reneging on debt could see Scottish mortgage payments increase by thousands of pounds.
Scots don't deserve to pay for SNP debt grandstanding
Scottish Liberal Democrat Chief Secretary to the Treasury Danny Alexander has challenged Finance Secretary John Swinney to scrap SNP plans to renege on Scotland's share of the UK national debt in the event of independence.
In his letter, Mr Alexander said:
"This week you have confirmed your position that the first economic policy of an independent Scotland would be to renege on the debts that have over generations funded public services and built schools, hospitals and more in Scotland. This is an extraordinary position and perhaps the most irresponsible claim of your entire campaign. I am writing to ask that you withdraw it – this is for the benefit of all Scots, who do not deserve to pay for your grandstanding.
"The threat to renege on our debts is really a threat to make every Scottish household pay the price for your failure to assemble a credible economic case for independence. The truth is that for businesses, households, and the wider economy remaining part of the UK offers benefits that an independent Scotland simply cannot match."