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
Newcastle United are back in the Premier League and very few in St James' Park care how they've done it.
Tennis star Serena Williams has hit back at Romania's tennis captain Ilie Nastase, accusing him of racially abusing her and her unborn baby.
Newcastle United have confirmed their promotion back to the Premier League at the first time of asking.