Ecommerce Accountant UK: Shopify, Amazon & Etsy Tax Explained

Selling online has never been easier to start — and never harder to account for. A UK ecommerce business today might take orders through a Shopify store, an Amazon Seller Central account, an Etsy shop and a couple of social channels, with payments landing through Stripe, PayPal, Klarna and marketplace payouts. Every one of those channels reports money differently, and almost none of them give you a figure you can drop straight into your accounts.

That is why an ecommerce accountant is a different animal from a high-street generalist. This guide explains how Shopify, Amazon and Etsy income is actually taxed in the UK, where VAT catches sellers out, and what a specialist ecommerce accountant in the UK should be doing for you.

1. What an Ecommerce Accountant UK Sellers Need Actually Does

An ecommerce accountant does everything a normal accountant does — annual accounts, Corporation Tax, Self Assessment, payroll — but adds the layer that online selling demands: multi-channel revenue reconciliation, marketplace VAT, inventory valuation and platform fee analysis.

The Core Work

• Channel reconciliation: matching gross sales, refunds, fees and payouts from each platform back to your bank
• VAT compliance: UK registration, quarterly returns under Making Tax Digital, and marketplace facilitator rules
• Inventory and cost of goods sold: so profit is reported in the period the sale happened, not the period you paid your supplier
• Profitability by channel and product: knowing whether Etsy actually makes you money after fees and ads
• Tax planning: sole trader versus limited company, salary versus dividends, and timing of stock purchases

Recommended action: If your bookkeeping currently consists of your bank feed plus a spreadsheet, that is the first thing to fix — it is the root cause of nearly every ecommerce tax error we see.

2. Shopify Accounting: Your Payout Is Not Your Revenue

Shopify Payments deposits a net figure into your bank every few days. Behind it sit gross sales, discounts, shipping charged to customers, refunds, chargebacks and Shopify’s own transaction fees. Recording the deposit as “sales” understates your turnover — which matters enormously for the VAT threshold — and hides your true cost base.

What Good Shopify Bookkeeping Looks Like

• Daily or payout-level summary journals posting gross sales, shipping income, discounts, refunds and fees separately
• Sales split by VAT treatment: standard-rated, zero-rated (most food and children’s clothing), and outside the scope for exports
• Third-party gateways (PayPal, Klarna, Apple Pay) reconciled separately from Shopify Payments
• Cost of goods sold posted against the month the item sold, with closing stock valued at cost

A connector such as A2X, Link My Books or Bookkeep will do most of this automatically into Xero or QuickBooks. It is the single highest-value change most Shopify sellers can make.

3. Amazon and Etsy: Marketplace VAT Explained

Marketplaces are treated differently from your own website, and this is where most sellers go wrong.

When the Marketplace Accounts for VAT

Since 1 January 2021, online marketplaces such as Amazon and Etsy are deemed the supplier for UK VAT purposes on certain sales — broadly, goods sold by overseas sellers to UK customers, and imported consignments valued at £135 or less. In those cases the marketplace collects and pays the VAT. The detail is set out in HMRC’s guidance on VAT and overseas goods sold to UK customers.

When You Account for VAT

If you are a UK-established, VAT-registered seller shipping from UK stock, you remain responsible for the VAT on your own sales — the marketplace does not do it for you. You declare that output VAT on your return and reclaim input VAT on fees, stock and overheads. Treating marketplace payouts as VAT-free income is a common and expensive mistake.

Etsy Specifics

• Etsy charges listing fees, transaction fees, payment processing fees and Etsy Ads — all allowable expenses, all deducted before payout
• Etsy collects VAT on its own seller fees, which you can usually reclaim once VAT registered
• Many Etsy sellers start as a hobby — once you pass the £1,000 trading allowance you must register for Self Assessment

Selling into the EU

If you hold stock in an EU country you will usually need a local VAT registration there. Cross-border B2C sales within the EU are handled through the One Stop Shop (OSS) scheme above the €10,000 threshold, and low-value imports up to €150 through IOSS. Our VAT return service covers registration, quarterly filing and postponed import VAT for online sellers.

Recommended action: List every channel you sell on and write down, for each, who accounts for the VAT. If you cannot answer confidently for all of them, get a VAT health-check before your next return.

4. Income Tax, Corporation Tax and Structure

How your ecommerce profits are taxed depends on your structure, not your platform.

Sole Trader

You pay Income Tax and Class 4 National Insurance on profits through Self Assessment. Simple to run, but there is no separation between you and the business, and higher profits are taxed at 40% or more.

Limited Company

The company pays Corporation Tax at 19–25% on profits, and you extract money as a mix of salary and dividends. It usually becomes worth considering once profits reach roughly £30,000–£50,000, but it brings extra filing: annual accounts and a confirmation statement at Companies House plus a Corporation Tax return.

Expenses Online Sellers Often Miss

• Platform and payment processing fees (Shopify, Amazon, Etsy, Stripe, PayPal)
• Advertising: Meta, Google Shopping, Amazon PPC, Etsy Ads
• Packaging, postage, courier accounts and fulfilment charges
• Software subscriptions, apps, themes and design work
• Product samples, photography and use of home as office

Recommended action: Review your structure annually against actual profit — incorporating too early creates admin you do not need, and too late costs real tax.

5. Choosing an Ecommerce Accountant in the UK

Plenty of firms list “ecommerce” on their website. Fewer have actually reconciled an Amazon settlement or an Etsy payout. Ask these before you sign:

• How many online sellers do you look after, and on which platforms?
• Do you use A2X, Link My Books or a similar connector as standard?
• How do you handle marketplace-facilitated VAT versus my own sales?
• Can you value inventory properly and report margin by channel?
• Will I get monthly management figures, or only year-end accounts?

Red flags: bookkeeping straight from the bank feed, no interest in your platform reports, and vague answers on VAT.

Final Thoughts

Ecommerce is a numbers game with thin margins and a lot of moving parts. Get the foundations right — clean channel reconciliation, correct VAT treatment, accurate cost of goods — and you can price with confidence, scale the channels that actually pay, and never be surprised by a tax bill.

If you want an ecommerce accountant in the UK who understands Shopify, Amazon and Etsy properly, our e-commerce accounting specialists work with online sellers across the country from our base in Blackburn — see our accountants in Blackburn page for local support. Selling into shops as well as online? See our wholesale and retail accountants.

Use this link to book a free, no-obligation meeting.

For the official position, see HMRC’s VAT registration guidance on GOV.UK.

Frequently Asked Questions