Why Amazon FBA Sellers Need a Specialist Accountant

Amazon FBA is not like running a standard ecommerce shop. You hold stock in Amazon's fulfilment centres, sell across multiple EU marketplaces, and deal with fees that change quarterly. HMRC treats your business as a standard limited company or sole trade for tax purposes, but the operational complexity is higher.

A general accountant who handles a local cafe and a freelance consultant will not know the specifics of FBA stock accounting, pan-European VAT registration, or the timing of FBA fee deductions. You need an accountant for Amazon FBA sellers who understands the platform's specific financial flows.

At Holloway Davies, we are ICAEW qualified accountants who work with Amazon sellers across the UK. This guide covers the key areas an FBA accountant should handle for you.

VAT Registration and Compliance for Amazon FBA

If you sell goods stored in the UK, you must register for UK VAT once your taxable turnover exceeds £90,000 in a rolling 12-month period. Many Amazon sellers register voluntarily before hitting that threshold because they sell to VAT-registered businesses who want invoices.

But here is where FBA gets more complicated. If Amazon stores your goods in a fulfilment centre in Germany, France, Italy, Spain, Poland, or the Czech Republic, you create a VAT registration obligation in that country. Amazon moves stock between fulfilment centres to optimise delivery times. You do not control where your stock sits.

An accountant for Amazon FBA sellers should help you with:

  • UK VAT registration and filing (usually quarterly via MTD-compatible software)
  • EU VAT registration in countries where Amazon stores your goods
  • OSS (One Stop Shop) registration for distance selling within the EU
  • IOSS (Import One Stop Shop) for low-value imports into the EU
  • VAT returns for each country, filed on time to avoid penalties

Without this, you risk HMRC penalties for late UK returns and EU member state penalties for missing registrations. Amazon can also suspend your account if your VAT status is not compliant in a country where stock is held.

Stock Accounting and Valuation

Standard ecommerce accounting tracks purchases and sales. FBA adds a layer: stock held by a third party (Amazon) that you do not physically control. Your year-end accounts must value that stock correctly.

The accounting treatment for FBA stock is straightforward in principle but fiddly in practice. You capitalise the cost of goods purchased but not yet sold. That cost includes the purchase price, shipping to Amazon's fulfilment centres, import duties, and any packaging costs.

Your accountant should reconcile your Amazon seller central reports against your bookkeeping records at least quarterly. Discrepancies happen. Amazon may lose stock (and reimburse you), or you may have returns that are not processed correctly. An accountant who knows FBA will spot these and help you claim reimbursements.

Stock valuation also affects your corporation tax liability. Overvalue stock and you pay too much tax. Undervalue it and HMRC can challenge your returns. The correct basis is the lower of cost and net realisable value, applied on a per-item basis.

FBA Fee Deductions and Profit Calculation

Amazon charges a long list of fees: referral fees, fulfilment fees, storage fees, long-term storage fees, advertising costs, and subscription fees for your seller account. Every single one is an allowable business expense against your corporation tax or self-assessment liability.

But you need to track them properly. Amazon's fee structures change. Storage fees increase during Q4. Long-term storage fees hit items held for over 365 days. Advertising costs vary month to month.

An accountant for Amazon FBA sellers will set up your chart of accounts to separate these costs into meaningful categories. That way you can see your true net margin per product, not just your gross revenue minus cost of goods.

For example, a seller in Manchester running a £420,000 turnover FBA business might have £95,000 in Amazon fees. If those fees are lumped into a single "cost of sales" line, you cannot tell which products are profitable after fulfilment costs. Proper categorisation fixes that.

Corporation Tax and Self Assessment for FBA Sellers

Most FBA sellers operate through a limited company. That means corporation tax at 19% on profits up to £50,000, 25% on profits above £250,000, and marginal relief in between. Your accountant should file the CT600 corporation tax return within 12 months of your year-end and pay the tax within 9 months and 1 day.

If you trade as a sole trader, your profits are taxed through self assessment (SA100 and SA103 forms). The deadlines are 31 October (paper) or 31 January (online) for the return, with payments on account due 31 January and 31 July.

Your accountant should also help you plan your director's salary and dividends. The most efficient setup for most FBA company directors is a salary of £12,570 (matching the personal allowance and primary NI threshold) and dividends up to the basic rate band. The dividend allowance is now £500, so anything above that is taxed at 8.75% (basic rate), 33.75% (higher rate), or 39.35% (additional rate).

Currency and Exchange Rate Management

If you sell on Amazon.co.uk in GBP, currency is not an issue. But many UK sellers also sell on Amazon.de, Amazon.fr, Amazon.it, or Amazon.com. Amazon pays you in the local currency. You then convert to GBP, or hold the foreign currency in an Amazon currency account.

Exchange rate fluctuations affect your profit. If you sell in euros and convert when the rate is weak, your margin shrinks. Your accountant should help you decide whether to use a multi-currency account (like Wise or Revolut Business) to hold and convert at better rates, or whether the Amazon Currency Converter for Sellers is acceptable.

For accounting purposes, you must record each transaction in GBP using the spot rate on the date of the transaction. HMRC expects consistent treatment. An accountant who handles FBA sellers will set up your software (Xero, QuickBooks, or FreeAgent) to handle multi-currency automatically.

Bookkeeping and Software for FBA Sellers

Manual data entry from Amazon seller central into spreadsheets is a recipe for errors. The best approach is to use accounting software that integrates with Amazon. Xero and QuickBooks both have direct Amazon integrations. FreeAgent is popular with sole traders but has less direct Amazon integration.

Your accountant should either:

  • Set up the integration for you and review the data monthly, or
  • Work with you to export Amazon settlement reports and import them into your accounting software

We recommend Xero for most FBA sellers. It handles multi-currency well, integrates with Dext for receipt capture, and allows your accountant to have real-time access. QuickBooks is also good, particularly if you use it for other aspects of your business.

Your accountant should reconcile your Amazon payments against your bank account at least monthly. Settlement reports from Amazon show the net amount paid after fees, refunds, and adjustments. Those need to match your bank statement.

HMRC Compliance and Record Keeping

HMRC can ask to see your records for up to 6 years after the tax year end. For FBA sellers, that means keeping all Amazon settlement reports, purchase invoices, shipping documents, and import paperwork.

Your accountant should ensure you keep these records in a format HMRC can accept. Digital records are fine if they are backed up. Paper records need to be stored securely.

From April 2026, Making Tax Digital for Income Tax (MTD for ITSA) becomes mandatory for self-employed individuals and landlords with qualifying income over £50,000. From April 2027, it applies to those with income over £30,000. From April 2028, it applies to those with income over £20,000. Your accountant should ensure you are using MTD-compatible software before these deadlines hit.

R&D Tax Credits for FBA Sellers

Most Amazon FBA sellers will not qualify for R&D tax credits. R&D is about advancing science or technology, not about selling products more efficiently. However, if you develop your own products and invest in significant technical improvements to those products, you may qualify.

For example, a seller in Birmingham developing a new type of reusable packaging that significantly reduces material waste could qualify. A seller importing generic phone cases from China and reselling them on Amazon will not.

If you think your FBA business involves genuine R&D, speak to an accountant who specialises in R&D tax credits. The merged R&D scheme from April 2024 requires careful documentation.

When to Switch to a Specialist Accountant

If your current accountant is not asking you about Amazon settlement reports, multi-currency transactions, or EU VAT obligations, you are likely under-served. Switch before you hit a compliance issue.

Signs you need a specialist accountant for Amazon FBA sellers:

  • You sell on multiple Amazon marketplaces (UK, DE, FR, IT, ES, or US)
  • Amazon holds your stock in fulfilment centres across Europe
  • You import goods from China or other non-EU countries
  • Your turnover exceeds £90,000 and you are not VAT registered
  • You are unsure whether your stock valuation is correct for year-end accounts
  • You want to claim R&D tax credits for product development

If any of these apply to you, speak to an accountant who knows FBA. We work with Amazon sellers across the UK, from sole traders in Leeds to limited companies in Bristol turning over seven figures. You can contact us here to discuss your situation.

If you are just starting out and want to understand the basics first, our fundamentals page covers the core tax and accounting concepts for UK businesses. For a full list of our services, see what we do.