October 15 2014.

HM Revenue and Customs (HMRC) is warning people who have to complete a 2013/14 tax return that paper returns received after the 31 October deadline will result in a £100 penalty.

HMRC can issue the £100 late-filing penalty even if you have no tax to pay, or you pay your tax on time. The more you delay sending in your paper return, the more you could pay, as there are further penalties after three, six and 12 months.

If you’re not able to submit a paper return by the end of the month, there is a simple way to avoid a £100 penalty – send your return online by 31 January.

As well as having an extra three months to send your return, filing online means your tax is calculated automatically and your return is processed faster. This means any tax refund you’re due is repaid more quickly. Registering for online filing is easy – visit the GOV.UK website at and follow the instructions.

Whichever way you choose to submit your return, the deadline for paying any tax you owe is 31 January.

Help and advice on filing your return is available from the GOV.UK website at or from the Self Assessment helpline on 0300 200 3310 (open 8am to 8pm, Monday to Friday, and 8am to 4pm on Saturday).