Self-assessment taxpayers face a deadline of 31 October to submit a paper return.
The Chancellor announces an increase in the inheritance tax threshold to £1m for married couples who leave their home to their children or grandchildren.
The 2015-16 tax year starts on 6 April 2015. New allowances and tax thresholds apply: 2015-16 Isas, marriage allowance and the tax-free savings allowance.
Which? reports George Osborne's 2015 Budget delivered at the House of Commons on 18 March
Chancellor will increase the tax-free personal allowance to £11,000 by 2017-18
George Osborne said in his Budget speech that self-assessment tax returns will be replaced by digital tax accounts, akin to 'Pay as you earn'
Which? rounds up what we already know about Chancellor George Osborne's Budget speech, set to be delivered on March 18 2015.
Practical advice for anyone who has yet to make their self-assessment tax return online.
Consumers are being warned about a rise in tax scams ahead of the self-assessment deadline at the end of January.
Millions of people who fill in their tax return online struggle with jargon on the HMRC website, a new Which? survey has found.