Simplify Your Self-Assessment Tax Return Process
Filing your self-assessment tax return can feel complex and overwhelming. However, with Filingscorner, the process becomes simple and stress-free. Our services cater to self-employed individuals, UK company directors, and those with untaxed income. We are dedicated to assisting you in managing your SA100 tax return.
What is a UK Self-Assessment Tax Return?
Self-Assessment is a system or process HM Revenue and Customs (HMRC) uses to collect Income Tax from those whose taxes are not automatically deducted from wages or pensions (known as PAYE). A Self-Assessment Tax Return is a form that individuals in the UK must submit to HMRC each year if they owe tax on income received.
A Self Assessment Tax Return, also known as the SA100 form, is the official method for reporting untaxed income to HMRC. For those who are self-employed, company directors, or earn income from multiple sources, filing a Self Assessment Tax Return ensures that HMRC is aware of all your earnings so they can assess the appropriate tax you need to pay.
Who Needs to File an SA100 Tax Return?
- Self-employed individuals paying Income Tax and National Insurance on their profits.
- Those earning £100,000 or more in the last tax year as employees or pensioners.
- Individuals earning £10,000 or more from savings interest or investment income.
- If you earned £2,500 or more in untaxed income, e.g. tips or commission.
- People eligible for tax relief on pension contributions as higher or additional rate taxpayers.
- Those owing capital gains tax from selling profitable assets.
- Claimants of child benefit when their or their partner's income exceeds £60,000.
- Individuals with taxable income from abroad or receiving UK income while living abroad.
- People receiving state pensions surpassing their personal allowances and having no other income sources.
- Business partners or directors of limited companies.
- Trustees of registered pension schemes or other trusts.
- Trustees or representatives of deceased individuals.
- Members ("names") at the Lloyd's of London insurance market.
- Ministers of religion.
- Recipients of a P800 Form from HMRC indicating unpaid tax and outstanding balances.
Additionally, you may need to send a tax return if you have untaxed income, such as COVID-19 grants or support payments, rental income, tips, commission, savings and investment income, dividends, or foreign income.
If any of the above applies to you, completing your Self Assessment Tax Return will help ensure you comply with UK tax regulations and avoid penalties.
What are the Key Deadlines For Self-Assessment Tax Return?
Meeting the various deadlines is crucial to avoid penalties. Here are some key dates to remember:
Deadline for Informing HMRC
If you need to complete a tax return and have not done so before, inform HMRC by 5 October. For example, you started your self-employment on 1 June 2023, you have got until 5 October 2024 to register.
Paper Return Submission
If you submit a paper tax return, the deadline is midnight on 31 October.
Online Return Submission
For online tax returns, the deadline is midnight on 31 January.
Tax Payment Deadline
You must pay the tax you owe by midnight on 31 January. If you make advance payments, known as 'payments on account,' there is typically a second payment deadline of 31 July. Late payments may incur penalties, but you can appeal if you have a valid reason for the delay.
Deadline for Tax Year 2024-2025
Self-Assessment Key Dates | |
Tax Year 2024-2025 | Deadline |
Registration for Self-Assessment | By 05 October 2025 |
Submission of Paper Tax Return | By 31 October 2025 |
Submission of Online Tax Return | By 31 January 2026 |
Tax Payment | By 31 January 2026 |
Amend Tax Return | By 31 January 2027 |
How our online tax returns work
After Placing order for our service, this process will follow :

Why CHOOSE FILLINGCORNOR
- Your privacy is our topmost priority
- We do not ask for HMRC User id and password (We submit from our ID )
- HMRC Registered Agent
- Easy Process
- Team of Experts
- Follows 48 hours TAT
- Transparent Pricing
- Member of AIA (The association of International Accountants)
How Filingscorner Can Help with Your Self-Assessment Tax Return?
Navigating through the process of completing and filing your Self Assessment Tax Return can be confusing. At Filingscorner.com, we provide expert assistance to ensure your SA100 form is filed accurately and on time. Our comprehensive services include:
1. Tax Planning and Advice:
We’ll help you identify all the income sources that need to be reported, ensuring you don’t miss out on any deductions or tax reliefs you may be entitled to.
2. Accurate Income Reporting:
We’ll guide you through the process of accurately reporting your income, whether from self-employment, rental properties, savings, or other untaxed income.
3. Tax Calculation:
We assist with calculating your tax liabilities and provide advice on how to reduce your tax burden legally.
4. Claiming Tax Reliefs:
Our experts ensure you claim all eligible tax reliefs, such as for pension contributions, charitable donations, and more.
5. SA100 Form Submission:
Once your details are gathered, we ensure your SA100 form is correctly submitted to HMRC.
Our goal is to make your Self Assessment Tax Return as straightforward as possible so you can focus on what matters most to you.