Tax self-assessment

The self-assessment tax return is an unavoidable burden if you are liable for self-employed tax or have complicated income tax affairs.

Tax self assessment - overview

While nobody likes paying tax, the right approach to your self assessment tax return could save you time and reduce the amount of income tax you have to pay.

HMRC income tax self assessment return
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Income tax self assessment

A guide to tax self assessment for business owners, with rules on record-keeping, how to complete a self assessment return and meeting tax deadlines.

Registering for self assessment on the HMRC website
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Self assessment online

How to register for self assessment online, find your Tax Reference Number (UTR) and set up a personal tax account on the HMRC website.

Calendar giving reminder of self assessment tax return deadline
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Self assessment deadlines

A guide to the deadlines for registering for self assessment with HMRC, filing your self assessment tax return and paying the tax you owe.

Business owner calculating income tax allowances and tax reliefs
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Income tax allowances and reliefs

A guide to UK income tax allowances, including personal income tax allowances and dividend allowances as well as tax reliefs for employees and sole traders.

HM Revenue & Customs form with pound coins
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Who needs a unique tax payer reference (UTR)?

If you don’t have a Unique Tax Payer Reference (UTR), you won’t be able to file your Self Assessment tax return - which could lead to some heavy fines. Here's how to get your UTR.

Files showing different types of tax for tax codes
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Tax codes: the basics

Everything you need to know about UK tax codes, including how to find your tax code and how to change a tax code that's wrong.

Man and woman do business accounts and pay tax bill
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Simple ways to pay your tax bill

How to pay your tax bill: a guide to paying the tax you owe to HMRC, including online payments, paying by cheque, paying by direct debit and paying tax via your bank.

Tax rates on dividends
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Dividend allowances

UK dividend tax rates and allowances. Discover what your personal dividend allowance is and what you will pay on dividend income over this amount.

An attractive women celebrates receiving confirmation of her tax refund
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Claim a tax refund

If you think you paid too much tax in a previous tax year, use this HMRC tool to claim a tax rebate.

eBay parcels delivered by someone selling on eBay
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eBay and tax

You make money selling your old stuff on eBay but do you have to pay tax on the money you make?

Woman getting a second income by running a business  from home
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Do you have a second income?

Self assessment tax obligations when you have a second income from working as a freelancer, renting out property or selling items online.

Man in a suit and glasses sat down with tax bills and a laptop at the desk
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Five ways to keep your tax bills low

Frustrated that a big slice of your profits goes to the taxman? Ben Dyer explains how to (legally and ethically) minimise how much tax you pay.