Your real margin lives in five systems at once. We join them, then a qualified accountant reads what they say together.
Book a free margin review Test one of your productsAn e-commerce accountant tracks profit per SKU after marketplace fees, advertising, shipping and returns — not just revenue. Grosvenor.Solutions, an accountancy practice in Bath serving online sellers across the UK, connects your marketplaces, ad accounts, inventory system and payment processors to your Xero, QuickBooks or Sage accounts, rebuilds that picture nightly, and reports true profit per product and per channel. From £295 a month plus VAT.
Amazon collects the gross, deducts its fees, and pays you the difference days later. Your bank feed sees only that deposit — so revenue is understated, fees are invisible, and VAT is calculated on the wrong number.
Fees invisible. VAT on the wrong base. Profit per product impossible.
Same deposit. £250 of trading activity that would otherwise never reach your accounts — and the gross figure HMRC already holds.
Amazon, eBay, Etsy and TikTok Shop must report your sales straight to HMRC.
HMRC Digital Platform Reporting RulesSole traders and landlords pulled into MTD for Income Tax in the first tranche.
HMRC estimate, 2026Where the MTD threshold lands by April 2028. It is turnover, not profit.
GOV.UK, Spring Statement 2025How long HMRC keeps postponed import VAT statements before deleting them for good.
GOV.UK, Customs Declaration ServiceBooks built from net deposits do not match what HMRC holds. That is no longer a tidiness question.
Your business already produces all of this information. It is just sitting in separate places that were never built to talk to each other. We plug them together and read them as one.
Needs unit cost from stock, fees from the marketplace and advertising from the ad platform — combined per SKU.
Big companies sorted this out years ago. Not by hiring better accountants — by paying to plumb all their systems together, so one question could reach across the lot. It cost hundreds of thousands of pounds, which is why nobody your size ever got it.
We built that plumbing once and share it across every client. That is the whole reason we can tell you which product loses money, and your current accountant cannot.
Every unit sold makes it worse. Selling more increases the loss.
Illustrative model using representative fee rates. Not a client result.
Every answer carries a confidence rating. When the data will not support a reliable answer, she refuses to give one and says why.
“I cannot give you a reliable margin figure. Your March Amazon settlement has not synced and February purchase invoices are not posted. Both flagged for your accountant.”
Marketplaces hold your cash over the month end. Recorded on receipt, January's sales show up in February and both months are wrong.
We post accrual journals on the last day of each month with automatic reversals on the first. Your months become comparable, which is the whole point of having them.
HMRC deletes postponed VAT statements after six months. Miss the window and the evidence to reclaim is gone permanently.
We collect them every month, check every entry against your purchases, and claim at the right point in your VAT cycle. It is the most commonly missed money in UK importing.
Every figure stored in sterling with the original currency and the rate applied preserved against it.
One mishandled currency invoice can overstate revenue by tens of thousands. Ask any accountant you are considering how they store the rate. Most cannot answer.
And one thing we deliberately do not do. Your books stay in your own Xero, QuickBooks or Sage, in your name. If you leave, you keep your books, your history and your software. There is nothing to extract and no minimum term. We would rather earn the next month than rely on it being hard to go.
| Capability | The usual arrangement | With us |
|---|---|---|
| Settlement journals | A2X or Link My Books, £30–£230 a month, per channel, rising with volume. | Included. Every channel. Reviewed by an accountant before posting. |
| Receipt capture | Dext, £25–£50 a month by document volume. | Included. Line items, not just totals. |
| Cash flow forecasting | Float, £47–£159 a month. | Included. Thirteen weeks, rebuilt nightly. |
| Profit per SKU | A spreadsheet you maintain. Most tools stop at the marketplace boundary. | Included. Marketplace, advertising and stock read together. |
| Data quality checks | Discovered at year end, if at all. | Included. Every night, raised within a day. |
Other accountants tell you to buy A2X. We built the equivalent — and we read what it produces.
Set on a matrix, not on what we think you will pay. The client who asks the hardest questions should not subsidise the one who does not.
Overseas VAT and GST registrations and fractional CFO work are quoted separately. Fees reviewed annually, never changed without notice.
Before any of the above works, everything has to be plugged in properly and your past figures tidied up and agreed. It is real work, it happens once, and we charge for it once.
Your accounting software, every sales channel, payment accounts, ad accounts and stock system, all switched on and feeding through.
Your past payouts rebuilt properly, so your starting figures agree with what the platforms and HMRC already have.
Each platform set up to record correctly, VAT handled right per channel, and your product costs loaded so margins work from day one.
We check everything, fix what we find, and only then give you a first report. We do not report on figures we have not checked.
| Tier | Total | Per month, first 3 months | What drives it |
|---|---|---|---|
| Foundation | £450 + VAT | £150 × 3 | 1–2 channels, one accounting system, up to 12 months of history. |
| Growth | £750 + VAT | £250 × 3 | Multiple channels, ads and stock connected, product costs loaded for SKU margin. |
| Command | £1,200 + VAT | £400 × 3 | Multi-channel and international, multiple currencies, import VAT history. |
Added to your first three invoices rather than charged up front, so you are not paying a big lump sum before you have seen anything.
Waived entirely for our first five e-commerce clients. We are a new firm and would rather earn a reputation than a margin on setup. The monthly fee is unchanged — the build is simply free, and it is the part sellers find hardest to get done properly anywhere.
It is not an investigation. It is an invitation to correct the position before one starts, and that window is worth using. We establish when trading began, rebuild gross sales from settlement data, and reply with records that agree to what the platform reported.
Talk to us before you replyIf you sell on a marketplace, yes. Marketplaces pay net of fees, so a general practice accountant working from bank deposits will understate your revenue and misstate your VAT. Since January 2024 platforms report gross sales directly to HMRC, so books built on net deposits no longer agree with what HMRC holds.
Published UK e-commerce fee schedules in 2026 put multi-channel bookkeeping at £195 to £775 a month and Amazon FBA accounting at £250 to £1,000 a month. Grosvenor.Solutions charges £295, £595 or £995 a month plus VAT depending on channels and volume, with settlement journals, receipt capture and cash flow forecasting included rather than billed separately.
It covers the setup: plugging every system together, tidying and agreeing your past figures, setting up your accounts so each platform is recorded correctly, and running a full check on your data before we report anything. It is £450, £750 or £1,200 plus VAT depending on tier, added to your first three monthly invoices rather than charged up front. It is currently waived for our first five e-commerce clients.
Recording only the net amount a marketplace deposits into your bank. It understates revenue, hides every fee, and produces a VAT figure calculated against the wrong base. Correct treatment records gross revenue, VAT and each fee category separately, which is what a settlement journal does.
Yes. We create balanced double-entry journals from your marketplace settlements and push them to Xero or QuickBooks, included in the monthly fee with no per-channel charge. The difference from a standalone tool is that a qualified accountant reviews each journal before it is posted.
Amazon, Shopify, eBay, Etsy and TikTok Shop for sales; Stripe and PayPal for payments; Linnworks, Cin7, Veeqo and Unleashed for inventory; Google Ads, Meta Ads and Amazon PPC for advertising. On the accounting side, Xero, QuickBooks and Sage.
Yes. Most e-commerce specialists work with Xero only and a few add QuickBooks, so you do not have to migrate to work with us. One limitation worth knowing: Sage does not expose analysis types through its API, so Sage clients get everything except channel-level profit and loss built from tracking categories.
Nothing. Your books live in your own Xero, QuickBooks or Sage account in your name, and everything we build sits alongside it rather than instead of it. You keep your software, your history and your data with no extraction and no rebuild. There is no minimum term.
No, and the design point is the opposite. Every answer carries a confidence rating derived from nightly data quality checks. Where the data will not support a reliable answer, Chloe-AI declines to give one and explains what is missing. Answers come from fixed, pre-written financial calculations rather than the model inventing a query, and every calculation was designed and checked by a qualified accountant.
Every figure is stored in sterling with the original currency and the exchange rate applied both preserved against it. That matters because a mishandled conversion can overstate revenue substantially and makes margin analysis meaningless.
It applies to sole traders and landlords, not limited companies. From 6 April 2026 it is mandatory where qualifying income exceeds £50,000, falling to £30,000 in April 2027 and £20,000 in April 2028. Qualifying income means turnover, not profit, so a seller with high revenue and thin margins can be caught early.
Yes. We review the position, establish when trading began, reconstruct gross sales from settlement data, and prepare a response with records that agree to what the platform reported. It is worth taking advice before replying.
More than most realise, because HMRC keeps postponed VAT statements on the Customs Declaration Service for six months only before deleting them. Sellers who do not download them monthly lose the evidence needed to reclaim, and the amount is unrecoverable once the statement is gone.
Grosvenor.Solutions is the trading name of Imperial Consulting Limited, registered in England and Wales, number 8635449. We hold professional indemnity insurance and have applied for HMRC supervision under the Money Laundering Regulations. HMRC permits accountancy service providers to trade while an application is processed.
Most clients are fully onboarded within two weeks. We plug everything in, tidy up and agree your past figures, check the data, and only then start reporting — because showing you numbers we have not checked helps nobody.
A free 30-minute review of your channels, fees and margins — and a straight answer on what your current setup is not showing you.
Book a free margin reviewOla Fashipe, founder of Grosvenor.Solutions, 3 Grosvenor Park, Bath, Somerset BA1 6BL. ACCA-qualified, MBA (Warwick Business School), 25 years in enterprise finance at IBM, Shell, BP, Deutsche Bank, GE, KPMG, Lloyds and Deliveroo. Last reviewed 30 August 2026.
