RISE has today re-affirmed its proposals for radical action on income tax after the SNP U-turn on the 50p rate.
Commenting on Nicola Sturgeon's announcement today that she intends to freeze current Scottish rates of income tax, a RISE spokesperson said:
"This is another depressing retreat from the First Minister at a time when we need radical reform.
"The top rate of income tax applies to people earning over £150,000 per year - that's the richest one per cent of earners in Scotland.
"This group can afford to pay more, but the Scottish Government has decided the maintain the tax give-away they received from George Osborne in 2012.
"The First Minister cites the prospect of tax flight as the reason for her decision.
"But this is precisely the logic Tory ministers use to justify ever lower tax rates for the rich.
"Less than a year ago, SNP deputy leader Stewart Hosie argued in favour of the 50p top rate, saying: 'Those with the very broadest shoulders should bear a slightly larger share of the burden'.
"What has changed?
"RISE advances a completely different - and much more radical - approach.
"We think the top rate should be raised from 45 per cent to 60 per cent, and that there should be a new income tax band for the top 10 per cent of Scottish earners levied at 45 per cent.
"Moreover, rather than simply capitulating to the super-rich, we want a specialist team of Revenue Scotland tax inspectors to be created to enforce Scottish tax regulation among elite tax avoiders and evaders."
RISE have published a fully costed alternative, which would increase tax on the very richest to 60p.