E-commerce accountants for London online sellers. Shopify, Amazon, Etsy, eBay.
Single-platform Shopify shop or pan-EU Amazon FBA empire? We integrate every platform, reconcile orders gross with fees broken out, handle multi-currency P&L, EU One-Stop Shop VAT, returns and chargebacks. Built for sellers who already know their conversion rate but can't see their true margin per channel.
Selling on these? We integrate the lot.
Daily reconciliation, fee-class breakdown, multi-currency handling, refunds and chargebacks tracked separately. If you're on a platform not listed, ask - we've integrated nearly every UK and EU storefront.
E-commerce books are messier than they look. We see what's hidden.
Every order has gross sales, platform fees, payment-processor fees, shipping income, refunds, sometimes multi-currency conversion. Generalists drop the Stripe payout into one P&L line and lose all the underlying margin signal. Four problems below show up on every onboarding call.
"My margin per channel is invisible - I can't tell if Etsy is profitable."
Each platform takes a different cut: Shopify 2.9%+, Amazon 15%+, Etsy 6.5% + listing + transaction, eBay 13%, plus payment-processor fees on top. Without breaking these out separately you can't see whether you're losing money on a low-margin channel. We split fees by class so you see net margin per platform.
"I sell to EU customers and have no idea about OSS VAT."
Once your EU B2C sales pass €10,000 in a calendar year you must register for VAT in every destination country OR use the One-Stop Shop scheme to file a single quarterly return covering all destination-country VAT. Most generalist firms miss this entirely. We register you for OSS and file the quarterly return at £195/quarter.
"My multi-currency P&L is full of unexplained variance."
Sales in USD, EUR, AUD, CAD. Platform fees in those currencies. Bank converts to GBP at varying FX rates plus conversion fees. Done manually you lose 1-3% in unexplained noise. We use Xero / QuickBooks multi-currency, reconcile platform-currency payouts against bank-currency receipts, and disclose FX gain/loss separately.
"I'm a sole trader doing £80K and someone said I need MTD?"
Yes - from April 2026 every sole trader and landlord above £50,000 turnover must file quarterly digital submissions to HMRC under Making Tax Digital for Income Tax. Annual self-assessment is no longer enough. £150/quarter (£600/year) for the quarterly service. At your scale you should also be looking at limited company conversion which removes MTD ITSA entirely.
Amazon, Etsy, eBay and Shopify - each one is a different job.
Generalist firms treat "online sales" as one number in the bank. But every marketplace pays you differently, handles VAT differently, and hides your real margin in a different place. Here is how we handle the ones we see most.
Amazon FBA accountants
Your fortnightly Amazon settlement is not income. It is sales, referral fees, FBA fulfilment and storage fees, refunds, reimbursements and a rolling reserve, all netted into one payout. We rebuild it line by line so you see true profit per product, not just what landed in the bank.
We also handle the two things that catch FBA sellers out: Amazon acting as the deemed supplier and collecting VAT on some of your sales, so you do not pay it twice, and pan-EU FBA storing your stock abroad, which triggers a VAT registration in each country. Crossed the £90,000 UK threshold without registering? We fix that too, see the section below.
Etsy accountants for makers and handmade sellers
Etsy takes a listing fee, a transaction fee, a payment-processing fee and often an offsite-ads cut, much of it before the money reaches Etsy Payments. We reconcile the deposit back to your actual orders so your books show real margin, not the tidy net figure Etsy hands you.
We will also tell you honestly when you have crossed from hobby into a taxable business, whether staying a sole trader or moving to a limited company saves you money, and, if you post to the EU, get you onto IOSS so small parcels clear customs without your buyers being charged again at the door.
Shopify, eBay and multi-channel sellers
Shopify pairs with Stripe, PayPal, Klarna and Shop Pay, each with its own fees and payout timing. eBay's managed payments bundle fees straight into the payout. And platforms like Vinted and Depop raise the question of whether you are trading at all yet.
We consolidate every channel into one clean set of books, split the fees out by type, and apply the second-hand margin scheme where it fits. One P&L, every platform, real numbers per channel, so you finally know which one is actually making you money.
EU One-Stop Shop (OSS). Why every UK seller shipping EU needs it.
If you ship physical product B2C into the EU and your annual EU sales pass €10,000, you have a VAT obligation in every destination country. OSS turns that into a single quarterly return. Here's how it works.
One quarterly return covers all 27 EU destination-country VAT.
Pre-2021 (and pre-OSS), UK sellers shipping to EU consumers had to register for VAT in each EU country once they crossed each country's distance-selling threshold. Multiple registrations, multiple returns, multiple penalty regimes.
OSS replaces all of that with a single quarterly return filed in your home country (UK, via HMRC's IOSS portal in some cases or via direct EU registration in another member state). You collect destination-country VAT at point of sale, then remit it via OSS.
The threshold to trigger the obligation is just €10,000 of total cross-border B2C sales across the EU per year. Most UK Shopify or Etsy sellers shipping EU pass this within months. Without OSS you either under-collect VAT (creating a future liability) or stop shipping EU entirely (lost revenue).
Crossed a VAT threshold late, or under-declared imports? We fix it quietly.
Most sellers who come to us with a VAT problem never did anything dishonest. They grew faster than they realised, or a supplier told them to put the wrong value on the customs label. Whatever happened, the earlier we deal with it, the smaller and cheaper it stays.
Backdated UK VAT registration
You must register once your rolling 12-month turnover passes £90,000. If that was months ago, we register you from the correct earlier date, prepare the extended first return, and work out exactly what is owed - usually far less than sellers fear, once the VAT on your own costs is reclaimed against it.
Late-registration penalty appeals
HMRC's failure-to-notify penalty depends heavily on whether the error was careless or deliberate, and whether you told them before they found you. A well-argued voluntary disclosure often brings the penalty right down, sometimes to nothing. We have done exactly this for Amazon FBA sellers and cut the exposure hard.
Import VAT and customs disclosures
If goods came in under-valued - the classic $20 declared on a £180 item - the shortfall in import VAT and duty catches up eventually. We prepare a clean voluntary disclosure that puts it right and shields you from the much heavier penalties that apply if HMRC gets there first.
If any of that sounds familiar, a quiet 15-minute call today is the cheapest this problem will ever be. No judgement, no jargon, just a straight answer on where you stand and what it will cost to fix.
Everything an online seller needs. Under one roof.
Click any service to read the dedicated page. All services delivered in-house by chartered accountants who specialise in multi-platform e-commerce.
E-commerce Bookkeeping
Daily platform reconciliation, fee-class breakdown, multi-currency, returns tracking. From £195/month.
View service →VAT & OSS
UK quarterly VAT plus EU One-Stop Shop returns. Multi-rate, multi-jurisdiction. From £195/quarter.
View service →MTD for Income Tax
Mandatory from April 2026 for sole-trader sellers above £50K turnover. £150/quarter quarterly service.
View service →Annual Accounts & CT600
Limited company year-end accounts and corporation tax filing from £1,200/year.
View service →Limited Company Formation
Companies House setup, share structure, VAT and PAYE registration. From £400 one-off.
View service →Tax Planning Workshop
Bespoke £1,200 strategy - incorporation timing, R&D for SaaS-side, capital allowances on inventory.
View service →Find your e-commerce service mix and fee. Five questions, one minute.
Answer five quick questions about your platforms, turnover and operations. We'll show you the right service mix, an estimated monthly fee, and flag any MTD or OSS obligations you might be missing.
Your e-commerce position
Based on your answers, here's the right setup.
The fees an online seller actually pays. Standard, transparent.
Below is the typical service mix and standard fee for e-commerce sellers. Quotes are issued in writing within 24 hours of the call - request one to see what discounts and seasonal offers are available in the current period.
E-commerce service fees
All prices exclude VAT. From the master service-fee schedule.
| Service | Description | Fee |
|---|---|---|
| E-commerce Bookkeeping (Single Platform) Up to 500 orders/month, one platform |
Daily reconciliation, fee-class breakdown, COGS tracking | from £195/month |
| Multi-Platform E-commerce 2+ platforms, multi-currency |
Consolidated reporting across Shopify / Amazon / Etsy / eBay | from £395/month |
| Amazon FBA Pan-EU VAT Setup Multi-country FBA, OSS scheme |
UK + EU VAT registrations, OSS scheme set-up | from £695setup |
| EU One-Stop Shop (OSS) Returns Quarterly EU B2C VAT |
Single quarterly return covering all destination countries | from £195/quarter |
| UK VAT Returns (Standard) Single rate, simple B2B / B2C |
Quarterly preparation and filing under MTD | from £195/quarter |
| UK VAT Plus (Mid-Complexity) Mixed rates, e-commerce returns |
Multi-rate handling, partial recovery, MTD filing | from £295/quarter |
| Backdated VAT + Penalty Appeal Crossed £90K threshold late, or import under-declaration |
Backdated registration, extended first return, voluntary disclosure, penalty mitigation | from £950one-off |
| MTD for Income Tax - Quarterly Service Mandatory April 2026 for sole-trader sellers above £50K |
4 quarterly digital submissions + year-end finalisation | £150/quarter (£600/yr) |
| Limited Company Accounts Solo director e-commerce business |
FRS accounts, CT600, Companies House, confirmation statement | from £1,200/year |
What our online sellers actually got back. Real numbers.
Three recent examples from a single-platform Shopify seller, an Amazon FBA pan-EU operator and a multi-platform group. Names changed, numbers real.
£14K of margin recovered by splitting fees out of the Stripe payout
A Shopify clothing brand doing £420K turnover came to us with a generalist firm dropping the entire Stripe payout into one P&L line. Looked like 38% gross margin. We rebuilt to split gross sales, Shopify fees, Stripe fees, shipping income and returns into separate lines. Real gross margin was 31% - and shipping was being subsidised by £14K/year because the price didn't cover the cost. They lifted shipping prices that month.
OSS registration prevented a 6-figure backdated EU VAT bill
An Amazon FBA homewares seller had been shipping to Germany, France and Italy via FBA pan-EU for 18 months without realising they had crossed the €10,000 OSS threshold in month 3. Backdated VAT exposure across three countries was approaching £85,000. We registered for OSS, submitted voluntary disclosures with HMRC and the affected EU authorities, negotiated penalty mitigation, and put the quarterly OSS service in place going forward at £195/quarter. Final exposure settled at £31K - a £54K saving versus the worst case.
MTD readiness review led to a £6,400/yr tax saving via incorporation
An Etsy seller doing £80K as a sole trader contacted us worried about MTD for Income Tax. We confirmed MTD ITSA applied (mandatory from April 2026) and modelled the limited company alternative. Optimal salary plus dividends through a Ltd Co saved £6,400/year in tax on the same profit AND removed the MTD ITSA requirement entirely (Ltd Cos file Corporation Tax). They incorporated, we registered the new entity for VAT and OSS, and onboarded onto Tier 2 accounts at £2,200/year.
E-commerce-specific quote, in writing within 24 hours.
Tell us your platforms, turnover, EU exposure and structure. We'll send a written fixed-fee quote covering exactly the services you need - and any current discounts or offers in the period.
Frequently asked questions.
If your question isn't here, message us on WhatsApp or book a free 15-minute call.
What does an e-commerce accountant do that a generalist accountant doesn't?+
How much does an e-commerce accountant cost in London?+
Do you handle Amazon FBA pan-EU VAT compliance?+
What is the EU One-Stop Shop (OSS) and do I need it?+
As a sole trader Shopify seller earning £60K, do I need MTD for Income Tax?+
How do you handle multi-currency P&L for international sales?+
How do you handle returns, refunds and chargebacks?+
Do you work with dropshippers and print-on-demand sellers?+
I've gone over the £90,000 VAT threshold as an Amazon seller - what do I do now?+
Can you backdate my VAT registration and appeal the penalty?+
Does Amazon or Etsy pay the VAT for me?+
I declared a low value on imported goods to save duty - can you help me put it right?+
E-commerce accountants in King's Cross, London.
Our office sits at 39-41 North Road, London N7 9DP - five minutes from Caledonian Road tube and ten from King's Cross St Pancras. We work with online sellers across London, the rest of the UK, the EU, and a smaller cohort of international clients running UK limited companies for FBA / dropshipping operations.
Most engagements are delivered remotely via video call, WhatsApp and our client portal - but for owner-operators who prefer to meet, the King's Cross office is open Monday to Saturday 10am to 7pm. No appointment fee, no travel charge.
London N7 9DP
10am to 7pm
Ready for an e-commerce specialist accountant?
Book a free 15-minute call. We'll quote your engagement in writing within 24 hours including any current discounts or seasonal offers. If LOYALS isn't the right fit we'll tell you that too.
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