Self-Assessment Tax Return Services for UK Online Sellers
As an online seller in the UK, staying compliant with HMRC tax regulations is crucial for your business’s success. At eSeller Accountant, we offer expert Self-Assessment Tax Return services tailored to eCommerce businesses. Whether you sell on platforms like Amazon, eBay, Shopify, or Etsy, our team ensures your financial records are accurate, tax-compliant, and submitted on time. We also help you stay prepared for MTD for ITSA (Making Tax Digital for Income Tax Self-Assessment), ensuring your business is ready for the digital transformation of tax filings.
Who Needs Self-Assessment Tax Return Services?
You need to file a Self-Assessment tax return if you:
- Are self-employed or run an eCommerce business.
- Earn more than £1,000 annually from online sales.
- Have additional untaxed income (e.g., property rentals, freelance work).
Our services are designed to help online sellers meet their tax obligations and ensure compliance with HMRC and the upcoming requirements of MTD for ITSA.
What Our Self-Assessment Services Include
Our comprehensive Self-Assessment services for online sellers ensure your business remains compliant:
Sales Tracking
We use cloud accounting software like Xero and QuickBooks Online to track and record sales from platforms such as Amazon, Shopify, eBay, and Etsy. This ensures accurate, up-to-date sales data for tax purposes.
Expense Management
We manage all your business-related expenses, including shipping, advertising, inventory costs, and packaging, to maximize your deductions.
VAT & Sales Tax Compliance
We handle VAT and global sales tax reporting, ensuring your returns are compliant with UK and international regulations. We also prepare your business for MTD for ITSA, making sure your VAT and tax records are digital-ready.
Home Office Deduction
For online sellers working from home, we calculate eligible home office expenses to ensure you’re claiming all the deductions you’re entitled to.
Filing with HMRC
Using Xero or QuickBooks Online, we prepare and submit your Self-Assessment tax return to HMRC accurately and on time. We also help you comply with MTD for ITSA, so your tax returns meet the latest digital filing requirements
Tax Payment Calculation
We calculate your tax payments and make sure everything is in order, so you know exactly how much is owed to HMRC
MTD for ITSA: What You Need to Know
The Making Tax Digital for Income Tax Self-Assessment (MTD for ITSA) initiative is part of HMRC’s effort to make tax reporting easier and more efficient. By April 2026, all self-employed individuals and landlords earning more than £50,000 annually will need to comply with MTD for ITSA, and those earning more than £30,000 by April 2027.
At eSeller Accountant, we ensure that your eCommerce business is ready for MTD for ITSA by using cloud accounting software like Xero and QuickBooks Online, which allow for digital tax submissions and real-time tax data tracking. We take care of all the technical details, so you don’t have to worry about staying compliant.
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eSeller Accountant’s Ecommerce services are powered by market-leading accounting software and apps that seamlessly integrate with cloud accounting platforms like Xero, NetSuite, and QuickBooks Online. Automate your ecommerce accounting, bookkeeping, inventory management, and reporting for a streamlined, efficient experience.
Benefits of Using eSeller Accountant for Self-Assessment and MTD for ITSA
Cloud-Based Accounting
We use leading cloud accounting software such as Xero and QuickBooks Online to maintain accurate financial records that are accessible anywhere
MTD for ITSA Compliance
We ensure your business is prepared for Making Tax Digital for ITSA, helping you transition smoothly to digital tax reporting.
Maximize Deductions
We help you claim every eligible deduction, including business expenses and home office deductions, reducing your tax bill.
Accurate Record-Keeping
With cloud-based systems, we keep your financial records organized and ready for MTD and Self-Assessment submissions.
VAT/Sales Tax Expertise
Navigate complex tax landscapes confidently. Our experts ensure compliance and maximize efficiency across jurisdictions.
Avoid HMRC Penalties
We ensure your Self-Assessment tax return is filed on time and correctly, preventing any penalties from HMRC
Key Deadlines for UK Online Sellers
5th October: Register for Self-Assessment if you’re new to filing.
31st January: Deadline to submit your Self-Assessment tax return and pay any taxes owed for the previous tax year.
31st July: Deadline for your second payment on account, if applicable.
Frequently Asked
If you are self-employed or running an eCommerce business in the UK, you must file a Self-Assessment tax return if you earn more than £1,000 annually from online sales. This also applies if you have additional untaxed income, such as freelance work or property rentals.
Our service includes sales tracking, expense management, VAT and sales tax compliance, home office deductions, and timely filing with HMRC. We use cloud accounting software like Xero and QuickBooks Online to ensure accurate, up-to-date records and compliance with the latest tax regulations.
We ensure your business is ready for MTD for ITSA by integrating cloud accounting software that allows for digital tax submissions and real-time tracking of your financial data. Our experts will guide you through the transition and ensure your records meet HMRC’s digital filing requirements before the 2026 deadline.
Our team handles all VAT and global sales tax reporting, ensuring compliance with both UK and international tax regulations. We also help prepare your eCommerce business for MTD for ITSA by ensuring your tax records are digital-ready, reducing the risk of errors and penalties.
We help you maximize deductions by managing business-related expenses, including shipping, advertising, inventory costs, and home office expenses. This ensures you’re claiming every eligible deduction, reducing your overall tax liability.
The key deadlines are:
- 5th October: Register for Self-Assessment if you’re filing for the first time.
- 31st January: Submit your Self-Assessment tax return and pay any taxes owed for the previous tax year.
- 31st July: Pay your second installment on account, if applicable.
We help ensure all deadlines are met to avoid penalties and interest from HMRC.
No, we don’t provide tax submission services. However, we can introduce you to our local partners for tax return submissions, including Annual Financial Statements (USA, Canada), Annual Financial Reports (Australia), or Financial Statements (Other regions), if you don’t have one
Yes, we work alongside your accountant and tax advisor to provide seamless financial management.
If your company’s annual revenues are between £2M and £50M, you are a strong fit for eSeller ACcountant.
How eSeller Accountant Can Help You
At eSeller Accountant, we specialize in helping UK online sellers manage their Self-Assessment tax returns. With expertise in MTD for ITSA, Xero, and QuickBooks Online, we ensure your tax filings are accurate, compliant, and digital-ready. From sales tracking to tax filing and compliance with MTD regulations, we handle everything so you can focus on growing your online business.
Contact Us Today
Let eSeller Accountant handle your Self-Assessment tax returns and ensure your business is ready for MTD for ITSA. Contact us today to simplify your tax filing process and stay compliant with HMRC.
Our Services for Ecommerce Business
Need a professional financial statement that complies with regulations? We'll prepare one that gives you valuable insights into your business performance.
We'll handle your VAT calculations and submissions, ensuring you're always compliant and managing your cash flow effectively.
We'll keep your financial records clean and up-to-date, so you always have a clear picture of where your business stands.
We'll handle your employee payments and pension contributions, ensuring you're compliant with all the latest regulations.