VAT registration is a milestone that every growing Amazon seller will face. Understanding when it becomes mandatory — and whether registering voluntarily before that point makes sense — helps you plan ahead.
The Mandatory Threshold
In the UK, you must register for VAT when your taxable turnover exceeds £90,000 over any rolling 12-month period. Taxable turnover means the total value of everything you sell that is not VAT-exempt — which includes virtually all Amazon sales.
Importantly, this is turnover (revenue), not profit. If you sell £90,000 worth of products but only make £15,000 profit, you still need to register. Amazon sellers can hit this threshold faster than expected because Amazon reports gross sales including fees.
How VAT Works
Once registered, you charge VAT on your sales (currently 20% for most products). Your Amazon selling price is treated as VAT-inclusive, meaning 20% of what the customer pays goes to HMRC as VAT. You can reclaim VAT on your business purchases — stock, prep services, software subscriptions, and other expenses.
The net effect is: VAT collected from sales minus VAT paid on purchases equals what you pay to HMRC. If you spend a lot on stock (which you do as an Amazon seller), the reclaimed VAT can be substantial.
Voluntary Registration
You can register for VAT before hitting the threshold. The main reason to do this is to reclaim VAT on your purchases. If you are spending £5,000 per month on stock, you are paying approximately £833 in VAT that you cannot reclaim if you are not registered. Over a year, that is £10,000.
The downside of early registration is that you must charge VAT on your sales. If your competitors are not VAT-registered, they can effectively sell 20% cheaper than you (since they do not need to account for VAT in their pricing). This can put you at a competitive disadvantage in price-sensitive categories.
The Flat Rate Scheme
HMRC offers a Flat Rate VAT Scheme for businesses with turnover under £150,000. Instead of tracking VAT on every purchase, you pay a fixed percentage of your gross turnover (the rate varies by business type — for retail, it is typically around 7.5%). This simplifies your accounting but may result in paying more or less VAT than the standard scheme depending on your expense ratios.
Run the numbers both ways before choosing. For Amazon sellers with high stock costs, the standard scheme often works out better because of the VAT reclaims on purchases.
Practical Implications
Once VAT-registered, you need to submit VAT returns (quarterly or monthly) and keep detailed records of all VAT-able transactions. Amazon provides VAT transaction reports that make this manageable, but it is additional administration. Most sellers use accounting software like Xero or QuickBooks to automate VAT calculations.
Planning Ahead
If you are approaching the threshold, start planning early. Register before you cross £90,000, not after — late registration can result in penalties. Adjust your pricing to account for VAT. Set up your accounting systems. And engage an accountant if you have not already.
VAT registration is a sign of a growing business — it means you are selling at a level that warrants formal tax compliance. Approach it as a natural business milestone rather than a burden, and get the right professional support to manage it efficiently.