Accountants for E-commerce & Online Sellers — Winchester

Accountants for e-commerce & online sellers

Selling on Shopify, Amazon, Etsy, eBay or your own store? We turn messy multi-channel payouts into clean, reliable numbers — reconciling every marketplace, tracking stock and cost of goods, and keeping your VAT right whether you sell in the UK, across the EU or worldwide.

Sync

Every channel reconciled — Shopify, Amazon, Etsy, eBay and more

VAT

UK VAT, OSS for EU sales and postponed import VAT handled properly

Stock

Inventory and cost of goods tracked so you see your true margins

Xero

Xero plus integrations like A2X to keep the books clean automatically

What You Need to Know

What every online seller needs to get right

E-commerce accounting has moving parts that a high-street shop never deals with — multiple channels, marketplace fees and VAT across borders. Here is what we keep a close eye on for every online seller we look after.

Multi-channel bookkeeping

Each platform pays you differently, nets off its fees and reports in its own way. We bring every channel together in Xero and reconcile your payouts to the penny, so your figures reflect what actually happened, not just what landed in the bank.

Foundations

Marketplace fees & payouts

Selling fees, referral fees, advertising and refunds all come out before you are paid. If you only record the net payout, your sales and margins are wrong. We split out fees so you can see the real cost of selling on each channel.

Accuracy

Stock & cost of goods

Your profit is not your sales — it is sales less the cost of the stock you sold. We set up cost-of-goods tracking and stock valuation so you know your true gross margin and are not caught out at year end.

Profitability

UK VAT & registration

Once your taxable turnover passes the VAT threshold you must register, and some sellers benefit from registering earlier. We watch your position, advise on the right scheme and file your returns under Making Tax Digital.

Compliance

VAT One Stop Shop (OSS)

Selling goods to consumers across the EU can trigger VAT in other countries once you pass the distance-selling threshold. The One Stop Shop (OSS) lets you report it all in one return. We help you understand whether OSS applies and keep you compliant.

International

Marketplace-collected VAT

For many sales, marketplaces like Amazon and eBay collect and account for VAT on your behalf, which changes how you record the transaction. We make sure marketplace-collected VAT is treated correctly so you neither over-pay nor under-declare.

Compliance

Imports & postponed VAT accounting

Importing stock brings import VAT and duty into the picture. Postponed VAT accounting lets you account for import VAT on your return rather than paying it up front, protecting your cash flow. We set this up and keep the records straight.

International

Xero & integrations

The right tools do the heavy lifting. We connect Xero to integrations such as A2X so marketplace settlements, fees and VAT flow through automatically and accurately, cutting hours of manual data entry each month.

Automation

Year-end & true profit

We prepare your accounts and corporation tax with your stock, fees and multi-channel income all correctly treated, so your year-end figures show the true profit of the business, not a distorted picture.

Annual
Packages for E-commerce

Everything included, built for online sellers

All packages include a Xero subscription (our recommended software) and are structured around how online sellers really operate: multiple channels, marketplace fees, stock and VAT across borders.

Pricing reflects how many channels you sell on and the VAT complexity involved. Multi-channel reconciliation and integrations are built in, so your numbers stay clean as you grow. View our standard packages →

Worth knowing

Every e-commerce client gets Xero configured with an e-commerce chart of accounts and A2X-style integrations, so marketplace payouts, fees and VAT map cleanly and you always know your real margin.

Lite
The Lite Package
from£120/month
Core Inclusions
  • Xero set-up with e-commerce chart of accounts (or your preferred software)
  • Statutory accounts & corporation tax
  • Monthly reconciliation of one sales channel (up to 50 transactions)
  • Email support
E-commerce Add-ons
  • Marketplace payout & fee mapping
  • UK VAT registration & scheme review
  • Cost-of-goods set-up
Get started
Complete
The Complete Package
from£250/month
Core Inclusions
  • Everything in Core
  • Monthly management accounts
  • Quarterly strategy & tax review meetings
  • Unlimited phone support
E-commerce Add-ons
  • Full channel-by-channel profitability reporting
  • Inventory valuation & margin analysis
  • Multi-country VAT support
  • Rolling cash flow & stock-purchase forecast
Get started
Why Lumi

Why choose Lumi as your e-commerce accountant

Payouts, fees, VAT across borders — we know the platforms and keep the numbers clean so you can grow with confidence.

Plain English, no jargon

E-commerce accounting gets tangled fast. We cut through it with clear, straight-talking advice, just numbers that make sense and actions you can take to grow.

Every channel reconciled

We connect your channels and reconcile payouts down to the fees, so your sales, costs and margins are right across Shopify, Amazon, Etsy, eBay and beyond.

VAT across borders, done right

UK VAT, the EU One Stop Shop and postponed import VAT are easy to get wrong. We keep you compliant wherever you sell, and explain what applies to you in plain terms.

One point of contact

You deal directly with a qualified Chartered Accountant who knows your business. We are responsive and accessible. When you call, we pick up, or we call you back the same day.

Get Started

Ready to see your real e-commerce numbers?

Book a free 30-minute call. We’ll look at your channels, your VAT and how we can take the bookkeeping off your plate.

Further Reading

E-commerce accountancy guides

Plain-English reads on the issues that catch online sellers out.

VAT Returns: getting VAT right as your sales grow Bookkeeping: keeping multi-channel sales reconciled VAT reclaim mistakes: what you can’t claim back
Accreditations & Memberships
ICAEW Chartered Accountants Xero Bronze Partner Hampshire Chamber of Commerce Member Saints Foundation — Proud Corporate Patron