Ecommerce VAT Companies in London: Firms and Services Guide (2026)
AC
Acumon Chartered Accountants·14 min read
This practical guide looks at companies providing ecommerce VAT services in London for online retailers, marketplace sellers, and businesses operating across multiple sales channels. Rather than ranking companies, it gives a clear overview of the different types of support available and the companies behind them. The selection ranges from larger companies with broad tax and accounting capabilities to more focused specialists dealing with ecommerce VAT, marketplace transactions, and cross-border compliance. Each profile provides context around the clients served, relevant areas of expertise, and particular strengths. The aim is to make comparison easier and help businesses identify a company that fits their operational and regulatory needs.
Acumon
Acumon is a UK company of chartered accountants providing specialist VAT support to ecommerce businesses, online retailers, marketplace sellers, and international businesses selling into or from the UK. Its ecommerce VAT service covers both routine compliance and more complex VAT questions created by multiple sales channels, cross-border transactions, imported goods, and stock held outside the UK.
The company supports sellers operating through Amazon, eBay, Shopify, their own websites, and other online channels. Acumon’s approach reflects the fact that marketplace transactions can involve different VAT liabilities depending on the seller’s location, the customer, the sales channel, and whether the marketplace is treated as the deemed supplier for a transaction.
Acumon handles UK VAT registrations and MTD-compliant VAT returns for domestic and overseas sellers. Its ecommerce VAT work includes reconciling platform settlement reports to VAT returns, accounting for refunds and chargebacks, dealing with multi-currency adjustments, and reviewing historic filings where VAT may have been declared incorrectly.
Cross-border ecommerce is another part of the service. Acumon supports VAT matters connected with EU consumer sales, OSS and IOSS, imported stock, postponed import VAT accounting, and overseas warehousing. Where EU registrations are required, the company coordinates the relevant registration process while handling UK VAT requirements directly.
The VAT team includes specialists with previous HMRC experience, while ecommerce accounting can be provided alongside VAT support. This allows marketplace sales, settlement data, inventory, fees, refunds, and VAT reporting to be considered within the same accounting framework rather than as disconnected processes.
Acumon is based in Ealing, London, and supports ecommerce businesses from its UK offices as well as businesses with international structures and overseas VAT obligations.
Ecommerce VAT Capabilities
Acumon provides VAT support across ecommerce sales channels, marketplace models, and cross-border trading arrangements.
These include:
UK VAT registration and returns for domestic and overseas sellers
Marketplace VAT treatment and deemed-supplier rules
EU OSS and IOSS registration coordination
Import VAT and postponed import VAT accounting
Platform settlement report reconciliation
Refunds, chargebacks, and multi-currency VAT adjustments
Historic VAT reviews and correction of marketplace VAT errors
MTD-compliant VAT filing based on platform transaction data
Acumon can combine these VAT services with ecommerce bookkeeping and accounting where sales, marketplace fees, inventory, and VAT reporting need to be reconciled within the same financial records.
Regulatory Licences and Registrations
Acumon operates as an ICAEW-registered chartered accountancy practice in the UK. Its wider professional registrations provide an established regulatory framework around the accounting, tax, and audit services delivered by the company.
These include:
ICAEW registration as a chartered accountancy practice
ICAEW registration to carry out audit work
UK company registration for Acumon UK Limited
UK VAT registration for Acumon UK Limited
The company’s audit registration is separate from its ecommerce VAT service, but it forms part of Acumon’s broader regulated professional practice in the UK.
Core Services
Alongside specialist ecommerce VAT support, Acumon provides broader VAT, accounting, and tax services that can support online businesses as their operations become more complex.
These include:
Ecommerce VAT advisory and compliance
UK VAT registration and deregistration
MTD-compliant VAT returns
International and cross-border VAT
VAT recovery and error corrections
VAT planning and health checks
HMRC correspondence and VAT investigation support
Ecommerce bookkeeping and accounting
Accounts preparation and financial reporting
Tax compliance and advisory services
Acumon’s ecommerce accounting service can reconcile marketplace settlements back to gross sales, fees, refunds, reserves, and other transaction components. It also supports inventory and margin reporting alongside the VAT treatment applied across different platforms and jurisdictions.
Acumon works with ecommerce businesses that are:
Selling through Amazon, eBay, Shopify, Etsy, or multiple platforms
Expanding from UK sales into EU consumer markets
Importing goods into the UK
Holding inventory in overseas warehouses
Managing marketplace and direct website sales simultaneously
Correcting historic VAT treatment across online sales
Responding to HMRC questions about marketplace transactions
Bringing ecommerce bookkeeping and VAT reporting into one accounting process
This structure allows Acumon to support both routine ecommerce VAT compliance and more technical situations involving marketplaces, international sales, imports, and changing fulfilment arrangements.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
LOYALS Accountants & Business Consultants
LOYALS has a specific ecommerce accounting service for London online sellers using Shopify, Amazon, Etsy, eBay and other platforms. Its ecommerce work combines bookkeeping and marketplace reconciliation with UK VAT and EU OSS support, making the practice relevant where VAT reporting depends on transaction data spread across several sales and payment systems.
The firm deals with gross order values, marketplace and payment fees, refunds, chargebacks and multi-currency activity rather than treating marketplace payouts as straightforward sales income. It also supports Pan-EU Amazon FBA businesses and provides face-to-face access from its King’s Cross office alongside remote delivery.
Key Facts
Ideal for: Shopify, marketplace and Amazon FBA sellers
Core services: UK VAT, EU OSS VAT, ecommerce bookkeeping, annual accounts and corporation tax
Platforms: Shopify, Amazon, Etsy and eBay
Cross-border capabilities: EU OSS and Pan-EU FBA support
Location: King’s Cross, London
Notable strength: Detailed reconciliation of platform sales, fees, refunds and multi-currency transactions
Ecommerce Accountants is a London-based practice built specifically around online sellers rather than ecommerce being one small sector within a general accountancy offering. Its published client categories include Amazon sellers, Shopify brands, eBay sellers, private-label businesses, dropshippers and direct-to-consumer brands.
VAT is integrated into the firm’s ecommerce bookkeeping model. The work takes account of VATable revenue, marketplace activity and sales reconciliations, while the wider service covers accounting and bookkeeping for businesses operating through multiple online channels. The practice operates under the Figio Group Ltd structure and identifies itself as an ACCA chartered accountancy practice.
Key Facts
Ideal for: Ecommerce businesses wanting accounting and VAT under the same specialist practice
Core services: Ecommerce VAT, bookkeeping and accounting
Platforms and models: Amazon, Shopify, eBay, dropshipping, private label and DTC
Location: London
Professional status: ACCA chartered accountancy practice
Notable strength: Ecommerce is the central focus of the practice rather than a secondary industry service
Contact Information
Website: www.ecommerceaccountants.co.uk
Address: 66 Paul Street, London, EC2A 4NA
Facebook: www.facebook.com/ecommerceaccountants
Twitter: x.com/ECommAccountant
Instagram: www.instagram.com/ecommerceaccountants
Zmartly
Zmartly provides ecommerce accounting and dedicated VAT services from West London. Its online seller coverage includes Shopify, Amazon and multichannel businesses, with VAT support integrated into bookkeeping and wider company accounting.
The firm’s VAT service addresses areas particularly relevant to ecommerce, including import VAT and postponed VAT accounting, while its ecommerce materials cover cross-border sales and international VAT compliance. It can consolidate data from platforms such as Amazon, eBay and Shopify into the accounting process, which is useful where the VAT return depends on data from several sales channels rather than a single ledger.
Key Facts
Ideal for: Shopify, Amazon FBA and multichannel ecommerce businesses
Core services: VAT services, bookkeeping, corporation tax and ecommerce accounting
Cross-border capabilities: International VAT and import VAT support
Software approach: Integration of marketplace data with accounting systems
Accotax has a dedicated ecommerce accounting service aimed at businesses selling through Shopify, Amazon, eBay and similar channels. VAT and cross-border taxation sit directly within that service rather than being treated separately from ecommerce bookkeeping.
The practice supports VAT filings alongside sales-channel and payment-processor reconciliation. For businesses selling outside the UK, its ecommerce service includes support around international VAT registration, distance sales and customs considerations. Accotax has several locations in and around London, including a Chelsea meeting location, and describes itself as regulated through UK accountancy bodies including ICAEW, ACCA and AAT.
Key Facts
Ideal for: London ecommerce companies combining bookkeeping, VAT and wider tax work
Fusion Accountants has an ecommerce-focused service for online retailers selling through Amazon, Shopify, Etsy and their own websites. VAT submissions form part of its ongoing ecommerce accounting packages rather than being limited to one-off VAT advice.
The practice prepares UK VAT returns under Making Tax Digital and states that it can support EU VAT reporting for businesses selling across borders. Ecommerce bookkeeping can be connected to sales platforms through tools such as Xero and A2X, helping to reconcile platform information before VAT and financial reports are prepared.
Key Facts
Ideal for: Ecommerce businesses wanting ongoing bookkeeping and VAT filing
Astute Accountants has a defined retail and ecommerce sector practice from its East London office. It works with online sellers, Amazon businesses and growing ecommerce brands, with VAT and international compliance forming one of the core services offered to the sector.
The service is broader than return preparation alone. Astute combines VAT work with marketplace fee reconciliation, inventory and margin reporting, cloud accounting and bookkeeping. That structure may be relevant to sellers whose VAT records need to be reconciled with inventory movements, marketplace charges and multiple sources of transaction data.
Key Facts
Ideal for: Owner-managed retail and ecommerce businesses
Core services: VAT and international compliance, bookkeeping, inventory reporting and marketplace reconciliation
Client types: Online sellers, Amazon businesses and growing ecommerce brands
Software: Sage, Xero and QuickBooks
Location: Leytonstone, East London
Notable strength: VAT support linked to inventory, margin and marketplace reporting
Address: 565 High Road, Leytonstone, London E11 4PB
Accusolve Accountants
Accusolve explicitly provides both ecommerce accounting and ecommerce VAT support for London businesses. Its ecommerce service covers Shopify stores, Amazon sellers, marketplace businesses, subscription businesses and online service providers, with bookkeeping and VAT handled alongside company accounts and tax.
Its separate London VAT service includes registration, VAT return preparation, MTD-compatible record keeping and reviews of bookkeeping errors. Ecommerce and overseas-owned companies are specifically identified among the types of businesses supported, giving the practice relevance to both domestic sellers and businesses using a UK company for international ecommerce activity.
Key Facts
Ideal for: London SMEs, marketplace sellers and overseas-owned UK ecommerce companies
Core services: VAT registration, VAT returns, ecommerce VAT, bookkeeping and MTD support
Platforms: Shopify, Amazon and other marketplaces
Location: Greater London
Notable strength: VAT workflows connected directly with ecommerce bookkeeping and cloud accounting
Protax provides London VAT return and advisory services with ecommerce identified as a specific VAT area. Its service covers marketplace VAT rules, OSS registrations and VAT issues affecting online sellers, alongside the broader compliance work needed to prepare and submit VAT returns.
The practice can also support import VAT and postponed VAT accounting, which becomes relevant when an ecommerce business brings stock into the UK rather than buying entirely from domestic suppliers. HMRC VAT investigations and more specialist VAT situations sit within the same service, making Protax relevant where a seller needs more than routine quarterly filing.
Key Facts
Ideal for: Ecommerce sellers with marketplace, OSS or import VAT questions
Core services: VAT returns, ecommerce VAT, import VAT and VAT investigation support
Cross-border capabilities: OSS and imported-goods VAT
Location: London
Notable strength: Ecommerce VAT is addressed within a wider specialist VAT service
Cigma Accounting has a dedicated ecommerce accounting service for London businesses, with VAT compliance forming a substantial part of the offering. It supports businesses using major ecommerce platforms and reconciles transactions across Shopify, Amazon and eBay as part of its bookkeeping process.
Its VAT work includes registration and threshold monitoring, VAT returns, OSS for EU sales, Making Tax Digital compliance and cross-border sales tax advice. This makes the service relevant to online retailers whose VAT obligations have expanded as sales have moved from the UK into EU or wider international markets.
Key Facts
Ideal for: Ecommerce businesses selling through several online platforms
East London Accountants provides a dedicated service for Amazon sellers and other marketplace retailers in London. The practice addresses VAT as part of the financial setup for Amazon FBA and multichannel businesses rather than treating marketplace revenue as ordinary domestic retail activity.
Its published Amazon seller service includes support with UK and EU VAT registration rules, distance selling, import and export tax implications and VAT treatment associated with Amazon fees and international transactions. The firm also works with businesses selling through Amazon, eBay, Shopify and other ecommerce channels.
Key Facts
Ideal for: Amazon FBA and marketplace businesses
Core services: Ecommerce accounting, VAT support and international tax advice
Platforms: Amazon, eBay and Shopify
Cross-border capabilities: UK and EU VAT, distance sales and import/export considerations
Location: London
Notable strength: Dedicated Amazon seller accounting service
Accountants for eCommerce focuses on accounting and tax work for online businesses using Amazon, eBay, Shopify, Etsy, dropshipping and related ecommerce models. The practice describes itself as a London accountancy business with a dedicated VAT service for ecommerce clients.
Its VAT support is positioned around VAT planning, compliance and advice for online sellers, alongside wider accounting and tax services. Compared with firms focused heavily on international automation, this is closer to a traditional accountancy relationship built specifically around smaller ecommerce businesses and their UK tax requirements.
Key Facts
Ideal for: Small ecommerce businesses and marketplace sellers
Core services: Ecommerce accounting, VAT advice and tax support
Platforms: Amazon, eBay, Shopify and Etsy
Location: London
Notable strength: Ecommerce-focused accountancy with a dedicated VAT service
Address: Profile West, Suite 2, First Floor, 950, Great West Road, Brentford, TW8 9ES
E-commerce Accountants UK
E-commerce Accountants UK provides remote specialist accounting and VAT services to online sellers throughout the country, with London explicitly included within its service coverage. The service is delivered through Tidy Money Ltd, an ACCA-regulated practice.
Its VAT work covers Amazon FBA, Shopify, eBay, TikTok Shop and other ecommerce businesses, with support for VAT returns, international sales tax, OSS, digital services and post-Brexit import obligations. Because delivery is remote, it differs from firms with a central London meeting model, but it can still be used by London sellers that want an ecommerce-specific accountant rather than a geographically local generalist.
Key Facts
Ideal for: London sellers comfortable with a remote specialist service
Core services: Ecommerce VAT, VAT returns, bookkeeping and tax
Platforms: Amazon, Shopify, eBay and TikTok Shop
Cross-border capabilities: OSS, international VAT and post-Brexit import issues
London coverage: Explicitly serves London and the South East
Professional status: Services provided by ACCA-regulated Tidy Money Ltd
Contact Information
Website: www.ecomaccountants.uk
Forvis Mazars
Forvis Mazars approaches ecommerce VAT from the perspective of a larger VAT and indirect tax practice rather than as a specialist bookkeeping service for small marketplace sellers. Its London VAT team supports international and mid-market businesses and provides VAT compliance, registration, overseas VAT advice, health checks and assistance with HMRC enquiries.
Its consumer and retail practice explicitly addresses ecommerce and VAT within the wider supply-chain environment. The firm has also published detailed guidance dealing with marketplace VAT, Amazon transactions and changes affecting low-value ecommerce imports. This makes it more relevant to larger retailers, groups and international ecommerce businesses facing technical VAT questions across several jurisdictions.
Key Facts
Ideal for: Mid-market, international and more complex ecommerce or retail groups
Core services: VAT compliance, registrations, advisory, health checks and HMRC support
Sector coverage: Retail and consumer markets
Cross-border capabilities: Overseas VAT registrations and international VAT advice
Location: 30 Old Bailey, London
Notable strength: Larger indirect tax team for complex cross-border and marketplace VAT issues
Contact Information
Website: www.forvismazars.com
Phone: +44 (0) 20 7063 4000
Address: 30 Old Bailey, London, EC4M 7AU, United Kingdom
Choosing between ecommerce VAT services in London depends on business size, sector, the maturity of internal processes, and the regulatory requirements created by the company’s sales model and geographic reach. Some companies combine VAT with wider accounting, tax, and compliance support, while others concentrate more narrowly on ecommerce, marketplaces, or cross-border VAT matters. The most suitable partner should provide dependable oversight together with practical measures that help reduce compliance risks and strengthen operational resilience. This guide is intended to provide neutral context for comparing the different approaches available rather than suggesting that one company will suit every ecommerce business. The final choice should reflect the complexity of the VAT position, the level of specialist input required, and the broader support the business expects from its adviser.
AC
Written by the Acumon team
Acumon is an ICAEW-registered firm of chartered accountants and registered auditors
based in London, with offices in Pitstone, Aylesbury and Bournemouth. Need advice on
anything covered here? Talk to us.
This practical guide looks at companies offering ecommerce VAT services across the UK, rather than ranking them from first to last. It covers a varied mix of companies, from larger accountancy…
Statutory Sick Pay (SSP) is the minimum an employer must pay an employee who is too ill to work. For 2026/27 it is £123.25 a week or 80% of the employee's average weekly earnings, whichever is…
A UTR number is your Unique Taxpayer Reference : a 10-digit number HMRC issues when you register for Self Assessment or set up a limited company. It identifies your tax records for Self Assessment…
Read article
Get in Touch
Ready for Accountants Who Move Your Business Forward?
Tell us what you need. Within one business day, a qualified accountant will be in touch to talk it through and give you a clear, fixed-fee quote — no obligation.
We use essential cookies to run this site, plus Google Analytics and Google Ads to
understand how visitors use it and measure our advertising — only with your consent. See our
Privacy Policy.
