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.

Registering for self assessment on the HMRC website

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

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

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

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

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

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

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

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

eBay and tax

You make money selling stuff online but do you have to pay tax on the money you make?

Woman getting a second income by running a business  from home

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

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.