Conservative MP, Ben Gummer, has suggested that National Insurance should be renamed 'earnings tax' and eventually merged with income tax.
Income tax looks set to be a key Budget 2014 issue, with shadow Chancellor Ed Balls calling for an increase to 50% as thousands more are taken out of tax.
Personal allowance could raise above £10,000 in the 2014/15 tax year, under plans revealed by Nick Clegg.
The very last deadline for self-assessment tax returns is midnight on Friday 31 January. Miss this and you face an automatic £100 fine.
Tax returns and self-assessment registration are free online at HMRC.gov.uk. Using unofficial websites could cost you £1000. Which? helps you not get caught out
HMRC have signalled their intention to take a hard line with taxpayers who miss the 31 January deadline for their online self-assessment tax return.