TVNDEM is a fixed-monthly-fee accountancy practice for UK online sellers. We consolidate Amazon, Shopify, Etsy, eBay and TikTok Shop into clear accounts, handle marketplace fees, cross-border VAT and margin reporting — with a named specialist. Fully cloud-based, UK-wide. Free initial consultation.

Online selling breaks standard accounting

The complexity doesn’t come from the platform — it comes from everything around it. Shopify Payments, PayPal, Klarna, Stripe and Amazon Pay each settle on different schedules, net of different fees, in different formats. Add multiple sales channels, international customers and inventory, and a generalist accountant’s reports quickly become either wrong or too vague to act on. Selling online genuinely needs a specialist.

Every channel, one clear picture

We reconcile Amazon, Shopify, Etsy, eBay and TikTok Shop into a single set of accounts — while keeping per-channel margin visibility so you know what’s actually making money. Marketplace fees, refunds, chargebacks and returns tracked correctly; settlements matched to your bank; and the Shopify-versus-Xero number mismatch that trips everyone up, fixed properly. You get a real view of profit after fees, VAT and returns — not just top-line sales.

The VAT rule that catches sellers out

The VAT threshold is £90,000 — but it’s not your calendar-year sales that trigger it, it’s any rolling 12-month period, which catches more online sellers than almost any other HMRC rule. Add cross-border sales and you can pick up VAT obligations in other jurisdictions too. We handle registration, returns and international VAT under one roof, so the figures in your accounts match what’s actually been filed and paid.

Built cloud-first, for how you sell

Because we’re fully cloud-based, it doesn’t matter where in the UK you are — we plug straight into the tools you already use. We give you clean monthly reporting that breaks down sales by channel, margin after fees, ad spend and cash position, so you can make pricing and inventory decisions on real numbers. No wasting time explaining what Amazon FBA is — we already know.

Growing, going limited, or scaling up

As brand income grows, the questions get bigger: when to register for VAT, whether to move from sole trader to limited company, how to handle stock and cash flow as you scale. We advise around your growth — so hitting the next level comes with a plan, not a tax surprise. Whether you’re a side-hustle Etsy seller or a multi-channel brand, the service scales with you on a fixed monthly fee.