Which? tax calculator (2015-16 tax year)

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Do I need to complete a self-assessment tax return?

If HMRC has asked you to complete a self-assessment return for 2015-2016, you must complete it before 31 January 2017 or face a £100 fine. Some people (those who are self-employed, for example) need to complete a tax return every year; others are sent one because they have untaxed income (often from property).

What does this tool do?

Which? tax calculator allows you to work out your income tax bill for 2015-2016. It gathers the same data you need to complete HMRC’s online tax return, explains the allowances and reductions you should be eligible for, and shows how these can reduce the total amount of tax you pay.


Although the publisher endeavours to make sure the information in this calculator is accurate and up-to-date, it is only a general guide and nothing in it constitutes taxation advice by Which? You should consult a qualified tax adviser who can consider individual circumstances if taxation advice is required. Which? Limited does not accept any liability for any loss or damage suffered as a consequence of relying on any information contained in this guide.