Tax Return Accountant – Expert Self Assessment Services
At Zahtax Accountants, our Tax Return Accountants specialise in helping individuals and businesses meet their HMRC obligations efficiently and accurately. Whether you’re self-employed, a landlord, or a company director, our expert team can guide you through the self assessment tax return process.
- Chartered Certified Accountants
- Fixed Fee Services
- Tax Liability Minimisation
UK Self Assessment Tax Return
The UK Self Assessment Tax Return is a system used by HMRC to collect income tax and capital gains tax from individuals who do not have their entire income taxed at source. Unlike employees who have tax deducted automatically through PAYE (Pay As You Earn), individuals such as the self-employed, landlords, company directors, and investors must report their income manually by completing a self assessment tax return.
A qualified tax return accountant can help you navigate the self assessment process with confidence. From registering with HMRC, calculating your taxable income, applying available reliefs, and ensuring timely and accurate submission, an accountant will make sure everything is handled in line with current tax laws. They can also help you avoid penalties by ensuring deadlines are met, such as the 31 January deadline for online submissions and payments.
Do I Need to File a Self Assessment Tax Return?
You are legally required to file a self assessment tax return if HMRC sends you a notice to file. If you believe you do not need to file, it’s important to have that notice cancelled directly with HMRC.
Common situations that require you to file a tax return include:
- You’re self-employed and your gross income exceeds £1,000
- You’re a partner in a business
- You’re a company director receiving income such as dividends
- You rent out property
- You’re subject to the High Income Child Benefit Charge
- Your total income exceeds £100,000
- You made capital gains (e.g., selling property or shares)
- You need to claim tax relief (e.g., on pension contributions, expenses, etc.)
- You received income not taxed at source and owe tax
Fixed Fee Self Assessment Tax Return Service
At Zahtax Accountants, we understand that dealing with tax returns can be stressful—especially when you’re unsure of the cost involved. That’s why we offer a transparent, fixed-fee pricing model for our Self Assessment Tax Return services. Our process begins with a free, no-obligation consultation, during which we review your personal and financial circumstances to understand the nature and scope of your income. This includes identifying all your income sources—such as self-employment, rental income, dividends, capital gains, foreign income, or other untaxed earnings—and any reliefs or deductions you may be entitled to claim.
Based on this information, we’ll provide you with a tailored fixed-fee quote before any work begins. This means no hidden costs, no hourly billing surprises, and complete clarity from the outset. See our Self Assessment Price Guide for more information.
Important Tax Return Deadlines
The UK tax year runs from 6 April to 5 April the following year. Your Tax Return Accountant will ensure you never miss important deadlines. Below are key dates:
Tax Date
Deadline
What it’s for
Details
5 October 2025
Registering for Self-Assessment
Deadline to register with HMRC if you are self-employed, a landlord, or need to complete a tax return for the first time.
31 October 2025
Paper Tax Return Deadline
If you choose to file a paper return (instead of online).
31 January 2025
Online Tax Return Filing & Tax Payment Deadline
Deadline for submitting your online return for the previous tax year (e.g., 2023/24 tax year deadline is 31 Jan 2025). Also the deadline for paying any tax you owe for that year.
31 January 2025
First Payment on Account (if applicable)
Advance payment towards your next year’s tax bill.
31 July 2022
Second Payment on Account (if applicable)
Second advance payment towards your next year’s tax bill.
Who Do Our Tax Return Accountants Help?
We serve a wide range of UK and non-UK individuals, including:
- UK landlords and non-resident landlords
- Individuals with capital gains on UK property
- Self-employed professionals and sole traders
- CIS subcontractors (CIS Tax Return & Rebate)
- High earners
- Freelancers and contractors
- Company directors receiving dividends
- EIS/SEIS/VCT investors
- Non-domiciled individuals
- HMRC Let Property Campaign Disclosures
- Digital Disclosure Services
Why Choose Zahtax as Your Tax Return Accountant?
- Regulated Chartered Certified Accountants (ACCA)
- HMRC Authorised Agent
- GDPR-compliant digital processes
- Registered with the Information Commissioner’s Office (ICO)
- Transparent fixed-fee quotes
- Specialist self assessment team
- Fully remote, paperless tax return submission
- Personalised support for your specific tax needs
Get Started Today
Don’t leave your tax return to the last minute. Contact a dedicated Tax Return Accountant at Zahtax today and experience a smooth, hassle-free process.
Frequently Asked Questions
Get answers to common questions about sole trader tax requirements and our services.
Who needs to file a Self Assessment tax return?
You must file if you are self-employed, a company director, a landlord, or you earn income not taxed at source (such as dividends or overseas income). If you’re unsure, a qualified tax return accountant can quickly check your circumstances and confirm your obligations.
When is the deadline for filing?
The deadline for online submissions is 31 January following the end of the tax year, while paper returns are due by 31 October. Missing these dates can lead to penalties, so it’s best to prepare early.
What information do I need to provide?
You’ll need records of your income, expenses, P60/P45 forms, bank interest, dividend vouchers, and any other relevant financial documents. Keeping good records throughout the year makes the process faster and reduces the risk of mistakes.
How do I pay my tax bill?
You can pay through HMRC’s online portal, bank transfer, debit card, or direct debit. HMRC also requires some taxpayers to make “payments on account” towards the following year’s tax bill.
What if I expect a refund?
If you have overpaid, HMRC will process a refund directly to your bank account, usually within a few weeks of submitting your return. Working with a tax return accountant helps ensure you receive the maximum refund you are entitled to.
Why should I use a tax return accountant?
A professional accountant saves you time, ensures accuracy, and helps you avoid costly penalties. They can also provide advice on tax planning and highlight ways to reduce future tax bills.