A Guide to Filling Out & Understanding Your Self Assessment Tax Returns (2024)

Your self-assessment is one of the most important things to take into account when you become self-employed. It’s critical that the return is filled out correctly and submitted on time, as there are penalties otherwise, so you’ll want to get it right the first time around.

Ascontractor accountants with years of experience, we can help. We’ve put together a self-assessment tax return guide with useful information for self-employed individuals, and we’re also able to assist with the return submission if you prefer.

What is a Self-Assessment Tax Return?

First of all, if you’re looking into becoming self-employed or are still a beginner, it’s crucial that you’re aware of which documents to fill out and why. After all, your taxes are deducted from your wages when you’re working for someone else – but, as soon as you become your own boss (even if on a part-time basis while you still work a more traditional job), you need to submit a self-assessment tax return. Since September 2017, some people who would normally submit a self assessment tax return are now eligible forSimple Assessment Tax, but you will know if this is you as you will receive a letter from HMRC.

A self assessment tax return form, is a document used by HMRC to calculate how much tax you need to pay based on your income. You have to do this once a year, either filing the return online or sending it by post to HMRC. In the document, you must declare your taxable income and capital gains, as well as the allowances and reliefs you’re entitled to.

Who Has to Submit a Self-Assessment Tax Return?

According to HMRC, you have to submit a self-assessment return if, in the last tax year, which runs from 6 April to 5 April, you were a sole trader who earned over £1,000 or a partner in a business relationship.

You may also need to submit a return if:

  • You’re a company director with income that is not taxed under the PAYE (Pay As You Earn) scheme.
  • You receive income from a trust, settlement or estate.
  • You have untaxed income from renting out a property, tips or commission and foreign income.
  • You have untaxed income from savings, investments and dividends.
  • You or your partner receive child benefits and your income is more than £50,000.
  • You have capital gains where you’ve sold or given assets worth £49,200 or more.
  • You want to claim certain tax reliefs.

There are other circ*mstances that may require the submission of a self-assessment tax return so, if you’d like to know if that is your case, talk to us. We’resole trader accountantsand can help out every step of the way.

How to Register for Self-Assessment

You have to register to submit the return, and there are different ways of doing it depending on whether you’re a sole trader, not self-employed or registering a partnership.

If you’re self-employed or a sole trader, you will have to register for self-assessment and Class 2 National Insurance by 5 October in your business’ second tax year. This means that, if for example, you’ve started trading on 10 February 2021, the latest date to register was 5 October 2021.

Some people may have sent online returns before. If you haven’t sent a return before, you can register online and will then receive a letter from HMRC with your UTR; after this, you can set up your account for the self-assessment service. You’ll receive an activation code that you will need to use to sign in.

Important Dates to Know About

In this self-assessment tax return guide, we also want to touch on key deadlines. When it comes to submissions, it’s crucial that you do it within the given timeline, since you’re at risk of being fined otherwise. The same goes for the money you owe – if you have to pay tax, make sure that you do it by the right deadline and, if you’re unable to, you need a reasonable excuse to avoid a penalty.

Reasonable excuses may include a sudden death in the family right before the tax return or payment deadline, an unexpected stay in hospital, a serious illness, a software or hardware failure before, or when, you were dealing with your return, a natural disaster and postal delays you couldn’t have predicted.

There are also some things that don’t count as reasonable excuses, including: relying on someone else to submit your return, failed payments due to lack of funds, finding the HMRC system too difficult to use, not getting a reminder from HMRC and making a mistake on the paperwork.

Generally, you should make sure that your return or payment is sent by:

Self-Assessment Tax ReturnDeadline
Register for self-assessment5 October 2021
Submit paper tax return31 October 2021 (Midnight)
Submit online tax return31 January 2022 (Midnight)
Pay the tax you owe to HMRC31 January 2022 (Midnight)

Penalties for Late Payments

You should do all you can toavoid HMRC penalties for late or incorrect returns; if you miss your deadlines, you will have to pay a penalty of £100. If you’re more than three months late, you may have to pay an extra £10 a day up to a maximum of £900 and, if you’re six months late, you have to pay a further £300 or 5% of the tax due, whatever is higher (this is on top of the existing penalties).

For those who are 12 months late, on top of the penalties highlighted above, they must pay an additional £300 fine or 5% of the tax owed and, if some cases, the fine corresponds to 100% of the amount of tax owed.

You have 30 days to appeal with HMRC if you’ve been issued a penalty you don’t believe is correct, but you’ll need a reasonable excuse, as mentioned, to avoid a penalty.

What is Required to Submit Your Return?

When it’s time to prepare and submit your self-assessment tax return, there are a few documents and information that you should gather in order to fill it out successfully. Besides your 10-digit Unique Taxpayer Reference, you also need:

  • Your National Insurance number.
  • A P60 form if you have an employer. This form shows the income and tax you’ve already paid.
  • A P45 form if you’ve left a job in the current tax year.
  • Details of your untaxed income, such as dividends and interest on shares.
  • Records of your expenses.
  • A P11D or P9D form that shows your benefits and expenses.
  • Information on any rental income you may have.
  • Documents that showcase your income, from receipts to bank statements.
  • Any potential contributions to charity.

Self-Assessment Tax Return at Account-Ease

Account-Ease are self-assessment tax return accountants, which means we can help you figure out your self-assessment and ensure everything is submitted correctly and on time.

We understand how time-consuming this can be, as there can be quite a lot of admin involved when preparing and submitting a return – this is time that you could be spending growing your business, so why not let us remove the hassle out of the process?

Having your tax return done by a professional will also give you peace of mind. After all, not only can it take a lot of time to fill out all the paperwork, it can be easy to make mistakes as well, as it can be a confusing process. Our expert accountants, on the other hand, know exactly what to do, since they have many years of experience helping self-employed individuals with their taxes.

You won’t have to stress about filling your forms incorrectly or worrying about missing a deadline when you choose Account-Ease as your partner.

So, from just £100, we can prepare and submit your self-assessment tax return. What’s more, our experts will give you advice on how to minimise your tax liability, liaise with you on any queries, submit your return to HMRC and confirm the amount to be paid and when you have to pay it by.

You will also find it easier to stay on top of your accounts, including your expenses and receipts, withFreeAgent accounting software. This tool will manage your transactions, help you create personalised invoices, chase payments automatically and provide you with crucial business information that you can access from anywhere in real time.

Additionally, because you have to keep a record of everything, FreeAgent makes your life so much easier, as you have all documents in one place. If HMRC wants to investigate your return for some reason, they’ll want to check your receipts, bank statements, transactions, and more, so you have to keep these for, at least, 5 years after the 31 January deadline of the relevant tax year.

Please don’t hesitate tocontact us today on 0208 133 4599 to learn more about this self-assessment tax return guide or any other services we provide. When you choose to partner with Account-Ease, you can also rest assured that we’ll answer any urgent queries you may have if you contact us by 3pm.

A Guide to Filling Out & Understanding Your Self Assessment Tax Returns (2024)

FAQs

How can I fill my tax return by myself? ›

Use IRS Free File

Almost everyone can file electronically for free on IRS.gov or with the IRS2Go app. The IRS Free File program, available only through IRS.gov, offers eligible taxpayers brand-name tax preparation software packages to use at no cost.

What are the steps for self assessment tax? ›

To pay Self Assessment Tax online, you can visit the income tax department's official website, select the appropriate challan, fill in the required details, and make the payment using net banking or debit card options.

How should you prepare for your tax return? ›

  1. Choose a Tax Preparer.
  2. Schedule an Appointment.
  3. Gather Your Documents.
  4. Round Up Your Receipts.
  5. List Your Personal Information.
  6. See If You Need an Extension.
  7. Plan Ahead for Any Refund.
  8. Find Last Year's Return.

How to file a zero income tax return? ›

Since you didn't earn any income for the year, you'll enter a "-0-" in each blank. Your total income will also be "-0-." Double-check to make sure that none of the income categories applies to you. For example, if you have money in a savings account that earns interest, you may have to report that interest as income.

How to get the most back on taxes? ›

4 ways to increase your tax refund come tax time
  1. Consider your filing status. Believe it or not, your filing status can significantly impact your tax liability. ...
  2. Explore tax credits. Tax credits are a valuable source of tax savings. ...
  3. Make use of tax deductions. ...
  4. Take year-end tax moves.

Do I have to file taxes if I make under $10,000? ›

So as long as you earned income, there is no minimum to file taxes in California. It is a good idea to talk with a tax professional to determine your filing status and whether you are required to file or could benefit from doing so anyway.

How should I start my self assessment? ›

Best practices for conducting self-assessments
  1. Reflect on your accomplishments. As you sit down to conduct your self-assessment, start with your accomplishments. ...
  2. Remain honest. As you assess yourself, try to remain honest. ...
  3. Find ways to grow. ...
  4. Employ metrics. ...
  5. Keep it professional. ...
  6. Use positive phrases.
Oct 13, 2023

How to calculate self-assessment? ›

The self assessment calculation is a breakdown of your world-wide income, as declared in the tax return. Your employment income plus your net property income are added together to work out how much tax is payable and a credit for the tax deducted by your employer is subtracted from the calculated tax due.

What deduction can I claim without receipts? ›

What does the IRS allow you to deduct (or “write off”) without receipts?
  • Self-employment taxes. ...
  • Home office expenses. ...
  • Self-employed health insurance premiums. ...
  • Self-employed retirement plan contributions. ...
  • Vehicle expenses. ...
  • Cell phone expenses.
May 31, 2024

What deductions can I claim on my taxes? ›

You can deduct these expenses whether you take the standard deduction or itemize:
  • Alimony payments.
  • Business use of your car.
  • Business use of your home.
  • Money you put in an IRA.
  • Money you put in health savings accounts.
  • Penalties on early withdrawals from savings.
  • Student loan interest.
  • Teacher expenses.
Jun 14, 2024

What documents do I need to include with my tax return? ›

A W-2 form from each employer. Other earning and interest statements (1099 and 1099-INT forms) Receipts for charitable donations; mortgage interest; state and local taxes; medical and business expenses; and other tax-deductible expenses if you are itemizing your return.

What disqualifies you from earned income credit? ›

In general, disqualifying income is investment income such as taxable and tax-exempt interest, dividends, child's interest and dividend income reported on the return, child's tax-exempt interest reported on Form 8814, line 1b, net rental and royalty income, net capital gain income, other portfolio income, and net ...

What is the most you can make without filing a tax return? ›

Tax Year 2022 Filing Thresholds by Filing Status
Filing StatusTaxpayer age at the end of 2022A taxpayer must file a return if their gross income was at least:
singleunder 65$12,950
single65 or older$14,700
head of householdunder 65$19,400
head of household65 or older$21,150
6 more rows

Can I get a tax refund if my only income is social security? ›

You would not be required to file a tax return. But you might want to file a return, because even though you are not required to pay taxes on your Social Security, you may be able to get a refund of any money withheld from your paycheck for taxes.

Can I file income tax return myself? ›

You can file and submit your ITR through the following methods: Online Mode – through e-Filing portal. Offline Mode – through Offline Utility.

Is it hard to fill your own taxes? ›

Although the United States tax code is a complex one, it's not difficult to do your taxes on your own. That is, as long as you use a quality software solution to guide you through the process. Consider signing up for TurboTax, H&R Block or another leading software solution now to get started.

How should I claim myself on taxes? ›

By that definition alone, the IRS excludes individuals from claiming themselves as dependents on their own tax return. However, you can claim other people as dependents or be claimed as a dependent on someone else's tax return.

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