The Scottish Government will publish its latest Government Expenditure and Revenue Scotland (Gers) report on Wednesday morning.
Gers estimates the gap between the amount of money raised through taxation in Scotland and what is spent on public services.
Scotland’s public spending deficit now stands at £36bn – more than double last year’s figure, as a result of the pandemic.
Expect the publication to be followed by furious debate as the figures are interpreted differently by those who believe in Scottish independence, and those who oppose it.
A brief history of Gers
Gers was first published in 1992 by then-Prime Minister John Major’s Conservative government.
Scotland Office ministers felt it would help them make a case against devolution, as they believed the figures proved the country relied on the UK treasury.
Who produces the report now?
Since 1999, the figures have been produced by statisticians within the Scottish Government.
But Gers is a National Statistics publication, which means it is independently assessed and produced free of political interference.
Why is there always such a row around the figures?
Because they have become part of the debate over independence. Both sides battle over interpreting what the numbers mean.
The SNP’s Growth Commission accepted the figures as a starting point for how an independent Scotland’s finances might look.
Those who support the union have used Gers to suggest Scotland can only afford its level of public spending because it is part of the UK.
Do the figures tell us what an independent Scotland’s finances would look like?
No. Gers figures illustrate the current health or weakness of Scotland’s public finances because they are based on existing constitutional arrangements.
But many see them as a starting point for a discussion about the affordability of public services if Scotland was to go it alone.
What should we look out for this year?
The impact of Covid. Last year’s Gers figures only included the first few weeks of lockdown.
Wednesday’s report will look very different as the financial damage of tackling the pandemic is laid bare.