The IFS said the SNP s policies had made the system more progressive , but efforts to raise more revenue from the rich could be thwarted by avoidance measures.
Research for MailOnline found strong support for getting the government finances under control, with 70 per cent saying stability must come before economic growth.
The Prime Minister and Chancellor spent were left fearing a bleak economic future following a sober meeting in No10 yesterday amid expectations the OBR will warn of a recession in 2023.
YouGov research carried out on Tuesday and Wednesday - as Mr Sunak became premier and took his first PMQs - found Keir Starmer s party had a 28-point advantage.