There are a number of reasons why you might need to complete a Self-Assessment return for the first time. This includes if you are self-employed, have an annual income over £100,000 and / or have income from savings, investment or property.

Taxpayers that need to complete a Self-Assessment return for the first time (for the 2022-23 tax year) should inform HMRC as soon as possible. The latest date that HMRC should be notified is by 5 October 2023.

HMRC has an online tool that can help you check if you are required to submit a Self-Assessment return.

The following list summarises some of the reasons when taxpayers are usually required to submit a Self-Assessment return:

  • newly self-employed (earning more than £1,000);
  • individuals with multiple sources of income;
  • taxpayers that have received any untaxed income, for example earning money for creating online content;
  • individuals with income over £100,000, and note, that from tax year 2023-24 the Self-Assessment threshold for individuals taxed through PAYE only, will change from £100,000 to £150,000;?? 
  • those who earn income from property that they own and rent out;
  • who are a new partner in a business partnership;
  • taxpayers whose income (or that of their partner’s) was over £50,000 and one of you claimed Child Benefit;
  • those receiving interest on savings or investment income of £10,000 or more before tax;
  • taxpayers who made profits from selling things like shares, a second home or other chargeable assets and need to pay Capital Gains Tax; and
  • taxpayers who are self-employed and earn less than £1,000 but wish to pay Class 2 NICs voluntarily to protect their entitlement to State Pension and certain benefits.
Source:HM Revenue & Customs| 21-08-2023

If you’re unsure whether you need to submit a Self-Assessment return or want expert help to avoid errors and penalties, the team at CIGMA Accounting is here to support you. We work closely with landlords and individuals with rental or investment income, offering clear, practical guidance throughout the Self-Assessment process.

Our accountants support clients across Fulham Broadway, including nearby areas such as Walham Green and Fulham Reach, ensuring your tax return is completed accurately and submitted on time. Whether your income comes from property, savings, or multiple sources, we provide straightforward advice tailored to your circumstances.

Get in touch today to receive personalised Self-Assessment support from trusted local accountants.

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CIGMA Accounting
CIGMA Accounting Ltd is a forward-thinking accounting and tax firm based in London, dedicated to delivering high-quality compliance, tax planning, and business advisory services to entrepreneurs, landlords, and growing SMEs. With offices in Wimbledon and Farringdon, we combine local expertise with a tech-driven approach to simplify accounting. Our services include corporation tax filing, VAT compliance, HMRC investigation support, R&D tax credit claims, capital allowances optimisation, and bookkeeping automation. What sets CIGMA apart is our ability to blend traditional accounting rigour with AI-powered systems that reduce errors, save time, and provide real-time financial insights. Our team ensures that every client - from startups to high-net-worth individuals - receives a bespoke solution aligned with their growth goals. Whether you need strategic tax planning, help with HMRC disclosures, or a full outsourced finance function, CIGMA Accounting delivers clarity, compliance, and confidence.