Almost half of British adults have never used their personal tax accounts. But the free online service could help you get a tax rebate.
HMRC will soon be able to investigate offshore tax errors up to 12 years after the self-assessment tax return was filed - here's what you need to know
From what documents you'll need to tax-allowable expenses, this is everything you need to know about filing a self-assessment tax return
If you file your tax return late, you need a reasonable excuse to avoid a fine. Which? explores some of the strangest excuses HMRC received in 2017.
Errors on tax returns can cause you to overpay your tax bill. Which? explains the most common reason for mistakes and how you can fix them.
Find out about tax-deductible expenses for employed and self-employed people, and how much it could cost you if you forget to claim them
If you don't apply for a UTR number today, you may run out of time to submit your self-assessment tax return without incurring a late fine.
The government's Making Tax Digital plans have come under fire in a new report, recommending they delay the changes. We explain what the changes mean for you.
We explain how paper tax returns work, the penalties you'll face from HMRC if you're late, and whether you'd be better off filing your return online
Around 25% of people submitting a tax return have overpaid due to an error. With a week until the tax return deadline, Which? shares our top tax tips.