But 73 per cent of Scots would stay put whatever the outcome, acciording to the Panelbase survey.
It also found 42 per cent of people believe a Yes vote would leave Scotland worse off while 28 per cent felt it would lead to Scotland being better off.
Some 28 per cent of respondents said they would be at least £500 worse off if Scotland broke with the UK while 14 per cent said they would be at least £500 better off.
Yes Scotland chief executive Blair Jenkins stayed upbeat, saying its support continued to be "solid". Better Together stressed it continued to have the momentum.