How to fill out your tax return

Tax returns

  • The self-assessment tax return system explained
  • Online tax returns and paper tax returns: how to fill yours in
  • Late tax returns: avoid penalties by meeting HMRC's deadlines, highlighted here
  • Tips on choosing a tax adviser, plus where to go for more help and information

What's in this guide

Who needs to submit a tax return?

Information on who has to submit a tax return, plus the options for doing so

2010-11 tax returns

Key facts and information for filling in your 2011-12 tax return

Online tax returns

The advantages of online tax returns, plus how to fill them out

Paper tax returns

Expert tips for filling out a paper tax return, plus information on supplementary pages

Late tax returns and penalties for mistakes

The fines for filing your tax return late, and late payment of your bill

Choosing a tax adviser

What to look for in a professional tax adviser, plus information on getting free tax advice

Giving your tax refund to charity

If you’re expecting a tax rebate, you can choose to donate some or all of it directly to charity

Which? works for you