Self Assessment Services

Who Needs to Submit a Self-Assessment Tax Return?

You’ll usually need to send a Self Assessment tax return if any of these apply to you. Not sure? Use HMRC’s checker at gov.uk/check-if-you-need-tax-return, or book a free call. Last reviewed: November 2026.

Company Directors: Being a director doesn’t, on its own, mean you must file. You’ll need a return if you have income that isn’t taxed through PAYE, such as larger dividends.

Self-Employed Individuals: Those running their own business or working as freelancers with income over £1,000 before expenses.

Business Partners: Members of partnerships must declare their share of the profits through a tax return.

High-Income Individuals: From 2024/25, a high salary taxed through PAYE no longer means you must file on its own. You may still need a return if you have other income that isn’t taxed at source.

Landlords: Individuals receiving rental income from property.

Child Benefit Recipients: If your adjusted net income is over £60,000 (from 2024/25), the High Income Child Benefit Charge applies. You can often pay it through your tax code instead of filing a return.

Pension Contributions: Higher or additional rate taxpayers contributing to a personal pension.

Claiming Tax Reliefs: Individuals claiming certain tax reliefs on work expenses or other allowable deductions.

Untaxed Income: Those with income not taxed at source, such as savings, investments, or overseas income.

Pension Payments: Recipients of certain pension lump sums or other types of pension income.

Capital Gains: Individuals who have sold assets, such as additional properties, cryptocurrencies, shares, or investments outside of an ISA, and have realized taxable capital gains.

Newly Registered Taxpayers: Those who have received a notice to file a tax return from HMRC must comply, even if they believe they do not need to.

These are the most common situations, but there may be other scenarios where a self-assessment tax return is required. Always consult an accountant or HMRC if you’re unsure about your circumstances.

Why Contact Magnum Accountancy for Self-Assessment Services?

At Magnum Accountancy, we simplify self-assessment tax returns with:

Expertise and Experience

Our seasoned professionals ensure accuracy and compliance.

Comprehensive Service

We manage everything from calculating tax liabilities to filing returns.

Proactive Tax Planning

Optimize tax liabilities and ensure compliance with ongoing estimates.

Personalized Support

Tailored advice for your unique financial situation.

Transparent Pricing

Starting at £150, with no hidden fees.

Advanced Technology

Efficient and secure processing using the latest software.

Proven Track Record

A history of client satisfaction and successful self-assessment management.

Choose Magnum Accountancy for reliable, professional self-assessment services and focus on what matters most.

Our Services

Self Assessment Services

Who Needs to Submit a Self-Assessment Tax Return?

These are the most common situations, but there may be other scenarios where a self-assessment tax return is required. Always consult an accountant or HMRC if you’re unsure about your circumstances.

Why Contact Magnum Accountancy for Self-Assessment Services?

Expertise and Experience

Comprehensive Service

Proactive Tax Planning

Personalized Support

Transparent Pricing

Advanced Technology

Proven Track Record

Limited Company Accounting

Sole Traders/Self- Employed

Book Keeping

Business Start-Ups

Partnerships

Get In Touch

Let's Get Started With Us, Further Info & Support