Tony Abbott has caused a stir on the campaign trail by saying one of his candidates has "sex appeal".

Mr Abbott was campaigning in the Western Sydney seat of Lindsay when he made the comment about Liberal candidate Fiona Scott.

Earlier, Labor said Mr Abbott had run out of excuses not to release the Coalition's costing after the publication of the Pre-election Economic and Fiscal Outlook (PEFO) today.

Look back at how day nine of the election campaign unfolded.