common self assessment mistakes

What are the Most Common Self Assessment Mistakes?

04/03/2025Self Assessment Tax Returns

Most self-employed beginners make some common self-assessment mistakes that lead to penalties. Self-assessment tax return filling is a necessary step if you are self-employed in the UK. However, the most crucial thing is to ensure accuracy in filling out the self-assessment tax return to prevent the penalty by HMRC. In this article, you will not only know about the common self-assessment mistakes but also that their solution is also provided that ensures your business growth and success.

Talk to our best accountants and bookkeepers in the UK at CruseBurke. You will get instant help about common self-assessment mistakes.

What are the Common Self-Assessment Mistakes?

There are some common self-assessment mistakes that you must be aware of for running a business smoothly. Additionally, analyse the solution to all these errors that ensure the right alignment for standing out the business. Read them carefully and prevent yourself from penalty.

  1. Not Keeping Proper Records

The top mistake in tax filing is not keeping all records of income and expenses accurately. If you forget all the vital financial details, it may lead to incorrect tax filing. The cause of errors is that you may miss important information about the financial cases to add in the filing.

Strategies to adopt:

Following are some strategies enlisted for this mistake of tax filing:

  • Must use spreadsheet and accounting software for all the financial information.
  • Consistent and regular updating also helps you keep records of all earnings and expenses.
  • Hiring an accountant is also a good strategy to ensure the collection and recording of all financial data.
  1. Confusion about Allowable Expenses

Paying tax is affected due to misinterpretation of the valid business expenses by many self-employed. Simply incorrect claims of personal expenses lead to errors in the filling.

Strategies to adopt:

You can adopt these strategies for filling out the tax to prevent these types of errors.

  • You must be aware of all the expenses that HMRC allows.
  • If you are not sure about your expenses, go through the guidelines of the HMRC.
  • Record the expenses efficiently and go for consultation with an expert in financial management and tax filing.
  1. Missing Deadlines

Filing tax returns on time is very crucial because missing the deadline leads to penalties. Missing the deadlines is one of the most common self-assessment mistakes that causes you to pay extra charges and impact the business cash flow.

Strategies to adopt

The best strategies to fix this self-assessment mistake of missing deadline are the following:

  • Use a calendar to mark all the tax deadlines to never forget the tax submission date.
  • Reminders in advance for the tax filing dates also ensure that you fulfill the HMRC requirements deadlines.
  • Collaborate and build consensus with accountants to not miss the deadlines.
  1. Not Claiming Tax Relief and Allowances

Many self-employed individuals pay more tax because they are not aware of how to take advantage of the available tax reliefs and allowances. The tax liabilities can be reduced through two different ways: 1) pension contribution deduction and 2) inventory allowance. But due to the lack of knowledge about it and the uncertainty of their eligibility, it becomes the reason to overlook these advantages. Understanding these reliefs is important to manage all the finances and comply with the tax laws.

So, instead of overpaying, is it best to be aware of all the updates on tax reliefs provided by the HMRC?

Strategies to adopt

Preventing this mistake is very important for sustaining your financial cash flow in the business. For this, you should follow the below-mentioned tips that can prevent you from overpaying.

  • Keep updated about the new tax laws and regulations because every year, HMRC provides new tax reliefs and allowances.
  • Consultation with the expert individual helps you to save money and predict all the financial deductions accurately. Tax professionals can also help you to understand your financial situation and offer the best strategies for managing tax.
  1. Forgetting to Declare Other Income

Most people do not inform about other sources of income, such as investment, online earning, or second jobs; this tax leads to unavoidable tax bills and penalties. So, forgetting to declare multiple sources of income is also a common mistake while running businesses. Hence, all earnings from different sources, including a secondary job, investments, and online income, need to be reported to the government to prevent tax problems.

To stay compliant, first check what income needs to be reported based on HMRC guidelines. Using HMRC’s checking tool can help determine your tax obligations quickly and accurately. Keeping clear records of all earnings and consulting a tax professional when needed ensures you file correctly and avoid unnecessary fines. Proper tax reporting keeps your finances in order and stress-free.

Strategies to adopt:

To stay compliant and avoid this mistake, you should use these strategies:

  • Learn all the guidelines provided by HMRC to mention which source of income or not for fulfilling the government requirement.
  • Determination of tax obligation is crucial for this; use HMRC checking tools to ensure accuracy.
  • Consultation with the tax professionals and recording all the financial information help you in accurate filing.
  • Tax reporting on time is also considered the best approach that eliminates your stress regarding financial management.
  1. No Government Gateway User ID

A significant number of individuals overlook the necessity to sign up for Government Gateway accounts since they also lose their user IDs. Your inability to file the self-assessment tax return becomes inevitable once you do not have this account because delays near the deadline could earn you a penalty fee. Basically, the Government Gateway serves as an identity authentication system for HMRC services, where self-assessment functions among these services. A Government Gateway user ID is a necessary requirement for starting account setup.

You can register by visiting the HMRC website, where they will need your National Insurance number, your UK address, recent pay stubs or P60s and a supported UK passport. The activation code will be sent to your registered address through postal mail by HMRC, and the delivery may require up to 10 days.

Strategies to adopt:

If you forget to register for a Government Gateway account or lose your Government Gateway user ID, then use these strategies for management:

  • You can recover them on the GOV.UK website. In case you are not able to access your registered email, create a new account and wait for a new activation code.
  1. Losing your Unique Taxpayer Reference (UTR)

This is one of the most common mistakes made by many self-employed people, as this number is very crucial for first-time self-assessment filling. However, before 20 days of filing the tax deadline, you should have applied for the Unique Taxpayer Reference (UTR) number.

Strategies to adopt:

  • Checking past tax returns and HMRC letters helps you find your UTR number.
  • Moreover, you can also find it in payment reminders.

Conclusion

Consequently, it is very important to learn from the mistakes that most self-employed people make to take vital actions for the smooth running of your business. Steps you can take that prevent the common self-assessment mistakes include keeping detailed records, learning tax rules, and filling out tax returns on time. Moreover, seeking guidance and taking consultations from tax experts or accountants is also the best approach for the management of finances.

Reach out to our intelligent and clever-minded guys to get the answer to your queries in the UK, we will get to your answers quickly. We will help to decide how to deal with your tax implications.

Disclaimer: The information about the common self-assessment mistakes provided in this blog includes text and graphics of a general nature. It does not intend to disregard any professional advice.


Related post

is there a P45 for self-employed
Is There a P45 for Self-Employed?

25/03/2024Business

Wondering about Is There a P45 for Self-Employed? Self-employment refers to running your own business and being solely responsible for its financial affairs. It is a form of job status that comes with various commitments and obligations. One of the most important duties is paying taxes and national insurance. In the UK, self-employed individuals are not issued a P45 form like PAYE employees. This article will provide you with everything you need to know about the requirements and process.   Our team of professional members loves to hear out your problems and find out the possible and suitable solutions quickly for small businesses’ accounting problems. Call us or email us today.   Self-employed vs PAYE Self-employed individuals may choose to work freelance or start their businesses. They can provide services directly to clients, or create products that they sell to customers. They are responsible for all aspects of their business, including taxes and accounting. On the other hand, employees work under an employer. Their earnings and national insurance contributions are typically deducted from their paycheck and paid by the employer. They are typically entitled to things like sick pay, maternity leave, and holiday pay. However, they do not have control over their working schedule and are bound by the terms of their contract.   Is There a P45 for Self-Employed? In the UK, self-employed individuals do not receive a P45. Instead, they are responsible for filing an HMRC Self-Assessment Tax Return and declaring their income and liability. This usually happens on an annual basis, although there are some exceptions. The HMRC will provide detailed information on the exact filing requirements and deadlines. Additionally, self-employed individuals have to make regular payments to HMRC to ensure their taxes and national insurance are paid. Here’s a basic summary of what self-employed individuals should know about tax and national insurance requirements in the UK: Self-employed individuals are responsible for reporting their income and liability to HMRC on an annual basis via Self Assessment Tax Returns. Self-employed individuals must also make regular payments throughout the year to cover taxes and national insurance. Self-employed individuals can take advantage of various deductions, including expenses and losses. To reduce their tax liability. It’s important to keep track of these deductions and know when and how to apply them.   What if I’m a PAYE Employee as Well as a Freelancer? If you’re a PAYE employee with a freelance side hustle in the UK, you’ll need to take careful consideration of both tax and national insurance obligations. In terms of tax, you’ll need to determine which tax regime you fall under. If you’re classified as a traditional part-time freelancer, you’ll only pay tax on your freelance income on top of your job income. However, if you’re considered a traditional full-time freelancer, then taxation will be applied differently. As a PAYE employee with a freelance side hustle in the UK, know the following factors: You must ensure you are paying the correct tax according to your income situation and employment status. If you fall into the low-income part-time freelancer category, you’ll only have to pay tax on your freelance income, but it will be added to your overall income and taxed at the same rate. If you’re a full-time freelancer, you will have to pay tax on your overall income.   What will Happen if I Switch from Self-Employment to Employment? If you are switching From Self-Employment to Employment in the UK, know the following points. Start by finding a suitable job and applying for it. Once you’ve secured an offer, it’s time to end your self-employment status. This includes ending any contracts or business arrangements, informing clients, and submitting a form to HMRC. Once your self-employment status has ended and you start your new job, you should submit your P45 form to your employer. This lets HMRC know that you’ve switched from self-employment to full-time employment. Your new employer will then send your details to HMRC. Who will assign you a new tax code and collect your tax based on that code? You’ll get a new pay slip from your employer. Which shows your income and deductions as per your new tax code. You’ll then receive a letter from HMRC confirming your employment status. This letter includes details of your new tax code and what to do next. Be sure to read it carefully and follow any instructions given. Your previous self-employment details will be deleted and replaced with your new employment details. This means that you won’t be able to claim any expenses or losses associated with your former business.   What if I’m No Longer Claiming Benefits to Start Work? If you’ve stopped claiming benefits to start work, you may need a P45 from your Previous Employer. To obtain the P45, you should contact your previous employer and request it. Make sure to provide them with your National Insurance number, the last date you worked with them, and the name of your new employer. If they have any other specific requirements, they’ll let you know. They will then provide you with the form, which you can give to your new employer. You should ensure that the P45 has all the correct information on it before submitting it to your new employer. This form will enable your new employer to adjust the amount of tax you pay on your income, ensuring that your taxes are calculated accurately. Be sure to keep a copy of the P45 for your records in case you need it in the future.   The Bottom Line Self-employment has its unique features, including tax and financial obligations. In the UK, self-employed individuals are not issued a P45 like PAYE employees. Although they have to file a self-assessment tax return and pay their taxes according to the prescribed guidelines. We hope these few minutes of reading will help you to develop a better understanding of whether is there a P45 for self-employed in the UK.   Reach out to our intelligent and clever-minded guys to …

Read more
how to get sa302
How to Get SA302 from HMRC If you’re Applying for a Mortgage?

13/04/2021Tax Issues

Nowadays, almost every lender will demand the SA302 form to find out your income and tax you have submitted in the past years. In this blog, we’d be exploring why lenders are asking for an SA302 form, and how to get SA302 from HMRC while applying for a mortgage. But before moving forward, you should first understand what is SA302?   Looking for affordable accounting and taxation services, approach CruseBurke!   What is the SA302 Form? It is also called Tax calculation form. It is an official statement provided by HMRC that acts as evidence of your earning and tax for the last four years. It is issued after sending your self-assessment tax returns and shows how much tax you have overpaid or owe. It also shows the summary of your self-assessment. You might need this form as a self-employed person for availing mortgage. We assist self-employed persons to achieve the best mortgage deal!   Why Lenders Need this Form? Lenders need this form to verify the earning of the person who’s asking for a loan. As in past, people used to declare more income than they earn, this practice is known as mortgage fraud. This statement shows the accurate income of a person. So it is advisable to ask for this form from HMRC during the initial stage of a mortgage application.   How to Get SA302 from HMRC? If you registered to HMRC as self-employed and submitted your (or your accountant) self-assessment tax returns. The SA302 form can be easily received online. Through this form, you get the calculation details of the tax and SA302 details, which are sufficient to satisfy your lender.   If you’re unable to get the SA302 form, just ask our accountant to solve your issue.   How to Get SA302 Form Online? Log in to HMRC online account Open Self Assessment Go to more Self Assessment details Select get your SA302 tax calculation Print your full calculation Choose the year you need from the menu of tax return Open view your calculation See and print your calculations After 2017, HMRC no longer issues this form. Now you have to ask or call HMRC for getting the SA302 form.   How We Can Help? Hopefully, now, you have got a clear idea of how to get the SA302 form while applying for a mortgage. Still, if SA302 is troubling you, your accountant can do this task on your behalf. If you’re looking for an accountant, just let us know to avail the cheap accounting services in the UK. Our accountants use the best accounting software whereby they can generate an SA302 form. Therefore, it’s worth investing to take help of an accountant.   Can’t find what you are looking for? why not speak to one of our expert’s accountants in London and see how we can help you are looking for.   It’s time to say bye to your accounting worries with CruseBurke.   Disclaimer: This blog provides basic guidelines to get the SA302 form.

Read more


Need Help with Accounting? We’ve Got You Covered!

Running a business is hard. Let us take care of your accounting so you can focus on what matters most. Our services include: