Accounting

E-commerce Accountants · South West London

E-commerce accountants in St. Mary's Park

Selling online from St. Mary's Park produces more accounting events per pound of turnover than almost any other business: fees, refunds, reserves, currency conversions, VAT collected by the marketplace on some sales and by you on others. We reconcile all of it from the channel reports every month and keep the VAT right. Fixed monthly fee, agreed in writing.

from £79/mo · fixed, per month

Next deadlines

  • VAT return and payment for the quarter that ended last month
  • VAT return and payment for the quarter that ended last month
  • VAT return and payment for the quarter that ended last month
  • Online Self Assessment filing deadline and balancing payment due

Who this is for

E-commerce Accountants for St. Mary's Park

Online sellers in St. Mary's Park: marketplace traders on one or several platforms, brands selling through their own store, dropshippers, subscription box businesses, sellers importing stock from overseas, UK sellers with EU or international customers, and businesses approaching or past the £90,000 VAT threshold who need the registration and returns handled correctly.

What is included

Everything inside the fixed fee

  • Sales, fees, refunds and payouts reconciled per channel from marketplace and payment-processor reports
  • VAT handled correctly for UK sales, marketplace-collected VAT, imports, EU and overseas customers
  • Inventory accounting with cost of sales and stock valuation in the top package
  • Cloud software integrated with your channels so transactions post automatically
  • Annual accounts and Corporation Tax or Self Assessment, with the figures tying back to channel reports
  • Marketplace VAT health check: a one-off review of your registrations and settings against the rules

How it works

E-commerce Accountants from St. Mary's Park, step by step

  1. Scope the job

    We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.

  2. Agree the price

    The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

  3. Hand over the records

    Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.

  4. Approve, then we submit

    You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.

Why IGI

The IGI way of working, in St. Mary's Park

One fixed fee for e-commerce accountants in St. Mary's Park, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.

We work to the HMRC and Companies House calendar, not an appointment diary. Clients in St. Mary's Park get reminders at 60, 30 and 7 days before each date that applies to e-commerce accountants.

We serve St. Mary's Park remotely by design: records by WhatsApp or email, drafts back for approval, filing electronic. The saving on premises is passed to you in the fee for e-commerce accountants.

Continuity matters in e-commerce accountants: the person who prepared last year's work for your St. Mary's Park business prepares this year's, and remembers what was agreed.

The output for St. Mary's Park clients is never just a form. It is the form, a one-page summary of what it says, and a note of the decisions it points to for e-commerce accountants.

Nothing is filed for St. Mary's Park until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.

Local facts

About St. Mary's Park

St. Mary's Park is in South West London, within Wandsworth, in the SW11 postcode district, England. For businesses in England the tax rules are those set by the UK Parliament: the 20/40/45% income tax bands, Class 4 National Insurance for the self-employed at 6% and 2%, Corporation Tax at 19% to 25%, and Stamp Duty Land Tax on property. Business rates are set locally by the council.

Nearby places we also serve for e-commerce accountants
PlaceDistanceDirection
Battersea0.2 miS
Chelsea Harbour0.3 miW
Imperial Wharf0.4 miW
Latchmere0.4 miSE
Cremorne0.6 miN
Sands End0.6 miW
World's End, Kensington and Chelsea0.6 miN
Clapham Junction0.7 miS

Worth knowing

Rules that come up in this work

CIS deductions

CIS turns construction subcontractors into advance taxpayers: a fifth of every labour payment goes to HMRC before they see it. Registering keeps the rate at 20% rather than 30%; gross payment status, for established businesses with a clean record, removes deductions altogether. The annual return is where the overpayment comes back, and filing it early brings the refund sooner.

Confirmation statements and identity verification

Companies House has tightened its requirements under the Economic Crime and Corporate Transparency Act: every company needs a registered email address and an appropriate registered office, every statement includes a lawful-purpose declaration, and every director and PSC must verify their identity. The confirmation statement, due annually with a £50 fee, is where most of this is confirmed.

Payments on account

Payments on account catch out most people in their second year of self-employment. HMRC assumes next year's tax will match this year's and collects half in January and half in July, in advance, on top of the balancing payment. If profits are dropping you can apply to reduce them, but reducing them too far attracts interest. We calculate the right figure rather than guessing.

The Self Assessment calendar

The tax year runs from 6 April to 5 April. Anyone new to Self Assessment must register by 5 October after the end of the tax year in which their untaxed income began. The online return and the balancing payment are due by 31 January, with a second payment on account on 31 July where they apply. Paper returns have an earlier deadline of 31 October and are rarely sensible.

Making Tax Digital for Income Tax

MTD for Income Tax replaces one annual return with quarterly digital updates and a year-end declaration, submitted from software. The threshold is gross trading and property income, measured two years earlier, and started at £50,000 in April 2026 before falling to £30,000 in April 2027. Anyone affected needs digital record keeping in place before their start date, not after.

Late filing penalties

HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.

Corporation Tax rates and marginal relief

Companies pay Corporation Tax at 19% on profits up to £50,000 and 25% on profits over £250,000. Between those figures marginal relief applies, producing an effective rate that rises gradually and a marginal rate of 26.5% on each pound in the band. The thresholds are divided by the number of associated companies, so a director with two companies has thresholds of £25,000 and £125,000 for each.

Questions

E-commerce Accountants questions from St. Mary's Park

Should I trade as a sole trader or a company?

Many sellers start as sole traders and incorporate as profits grow. A company protects personal assets from supplier and platform disputes, and can be more tax efficient at higher profits, but adds compliance. Marketplaces also treat business accounts differently. We run the comparison for your numbers.

Do I need to register for VAT if the marketplace collects it?

Marketplace-collected VAT does not count towards your registration threshold, but your other sales do. Many sellers have a mix and cross the £90,000 threshold without realising. We monitor your rolling 12-month taxable turnover monthly and tell you when registration is approaching.

Can you reconcile my payment processor as well as the marketplace?

Yes. Card processors and payment gateways on your own store are integrated so that gross sales, fees and payouts post and reconcile automatically. The fee treatment, including VAT on processor fees, is configured at setup, which is where most self-built integrations go wrong.

What is the marketplace VAT health check?

A one-off £149 review of your VAT registration, your marketplace tax settings, your treatment of imports and overseas sales, and a sample of recent returns against the rules. It produces a written report of errors found and what to do about them. Most sellers who have set things up themselves have at least one.

When do I need the inventory package?

When you hold meaningful stock. Without inventory accounting, the cost of goods purchased is expensed when bought, which distorts profit between periods and misstates the balance sheet. The £179 package tracks stock, calculates cost of sales and values closing stock, which lenders, investors and HMRC all expect from a stock-holding business.

I sell to EU customers. What VAT applies?

Since 2021 sales of goods to EU consumers are exports from the UK, zero-rated here, with EU VAT due in the customer's country. The EU's Import One Stop Shop lets you account for consignments under €150 through one registration. Above that, local registration or the customer paying on delivery. We advise on the right route for your volumes.

How do I get started from St. Mary's Park?

Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for e-commerce accountants. Once you confirm, we tell you exactly which records to send and the work begins. Most St. Mary's Park clients are set up within a day.

Which deadlines matter most for e-commerce accountants?

The next four dates that apply to e-commerce accountants are shown at the top of this page, calculated from today. For St. Mary's Park clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.

Fixed fees, filed on time, for St. Mary's Park

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote