Scotland has generated more tax revenue per head than the UK as a whole every year for the last three decades, SNP deputy leader Nicola Sturgeon will tell her party today.
Speaking at the SNP conference in Inverness, Sturgeon will say that tax receipts from Scotland were £1,676 higher per head in comparison to the UK as a whole in 2011/12.
"Scotland can afford to be independent and don't let anyone tell you different.
"For every one of the last 30 years we have generated more tax revenue per head than the UK as a whole. Every single one of the last 30 years.
"If there is one fact I want you to remember over the next 18 months and tell everyone you know, it is this one.
"During those 30 years, oil prices will have gone up and they will have come down.
"The economy will have grown and it will have been in recession.
"But one fact has remained constant. In every single one of those 30 years tax receipts per head of population in Scotland have been greater than tax receipts per head of population in the UK.
"How dare any unionist politician say that Scotland doesn't pay her way."