Public debt in an independent Scotland could exceed national income by the early 2030s, according to projections by the IFS.
A new report found that in order to avoid this, Scotland would need to implement "significant additional fiscal tightening".
Even under the most optimistic scenario we consider, the long-run 'fiscal gap' in Scotland would be 1.9% of national income compared to 0.8% of national income for the UK as a whole.
In order to bring debt down to 40 percent of national income over the next 50 years, it would need to increase taxes or make cuts worth £6 billion in today’s terms.
More top news
Dame Helen Mirren was forced to improvise during an awards acceptance speech as mic slips to down to half her height.
The Duchess will carry out her first engagement as Honorary Air Commandant of the Air Cadets after assuming the role in December.
Stars will entertain an audience of more than 100 million as they take to the Super Bowl half-time stage.