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Self Assessment and tax resource

What you need to know about tax and your tax return, all in one place

Stuck with your taxes? Take a look at our top tips, articles and guides

Getting your head round your taxes and completing your Self Assessment doesn't need to be a chore. From the details on income tax and tax-deductible expenses to the deadlines you need to meet, we've got what you need know.

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10 of the worst excuses HMRC have received for late tax returns

The Self Assessment deadline is 31 January each year, but not everybody manages to file it on time.

It's true that Self Assessment isn’t always a straightforward and easy process, but HMRC have received some ridiculous excuses for late tax returns in the past. Here are 10 of our favourites – from yacht fires to arguing siblings...

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The self-employed guide to Self Assessment tax returns

The self-employed need to fill in a Self Assessment tax return each year. It can seem complicated, but we've broken down the process to make it as stress-free as possible.

Read the Self Assessment tax returns guide for small businesses and the self-employed.

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A complete guide to income tax for the self-employed

You need to declare your self-employed income when filling in your Self Assessment tax return, but there are different tax rates depending on how much you earn.

Check out our article, which explains all about income tax for the self-employed.

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Simplified expenses – what they are and who can claim them

Some self-employed people with straightforward tax affairs can use the HMRC simplified expenses scheme, which lets you work out allowable business expenses based on standard flat rates set by HMRC.

What are simplified expenses?

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Self-employed tax-deductible expenses - what can I claim?

The self-employed can reduce their taxable income by deducting certain expenses – these expenses need to be wholly and exclusively for business purposes.

Find out what you can claim as self-employed tax-deductible expenses here.

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Tax deadlines for your business

It can be difficult to keep up with all the tax dates and deadlines businessess need to meet. So whether it's Self Assessment, Corporation Tax, VAT, or PAYE and NICs, we've collected them all in one handy place.

See all the business tax deadlines here.

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Payment on account – what it is and how to pay

Payment on account is one of the most commonly misunderstood parts of the Self Assessment process – we explain more here.

Read about payment on account: what it is and how to pay

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The complete guide to Self Assessment tax returns for landlords

If you make money from renting out your properties, you need to complete a tax return. Here’s how the Self Assessment process works for landlords.

Read our guide to Self Assessment tax returns for landlords.

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HMRC's list of ridiculous tax return excuses and expense claims

Every year HMRC release their favourite excuses for late tax returns, along with the best failed expense claims. From witchcraft to cold fingers, this is the latest list.

See HMRC's worst tax return excuses for 2019.

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HMRC late filing penalties, penalty appeals and reasonable excuses

Here's some of the reasons why taxpayers might end up with a penalty from HMRC – and the excuses HMRC may accept when appealing.

See the list of HMRC penalty appeals and reasonable excuses.

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Here's how an HMRC system error could lead to fines for the self-employed

Some Self Assessment taxpayers filing their return for the 2017-18 tax year have been hit by an HMRC glitch, affecting the payment on account for the following year.

Read how the self-employed could face fines due to incorrect tax reminders from HMRC.

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