Step 3 of 3 · Tech, SaaS & Online Limited Companies

Online Marketplaces & Platforms

For two-sided platforms and marketplaces matching buyers and sellers, earning commissions, listing fees, subscription income or a mix of all three.

We help you separate GMV vs. your commission revenue and keep HMRC clear on what is — and isn’t — your turnover.

Who is this for?

  • Marketplaces matching buyers and sellers (B2B or B2C)
  • Platforms charging commissions and/or listing fees
  • Booking platforms and aggregators
  • Marketplaces with wallet/escrow balances or payouts to sellers

What’s included

  • Full company accounts and CT600 filing
  • Companies House accounts submission
  • 1 × director Self Assessment tax return
  • Clear schedules reconciling GMV, your commissions and payouts
  • Basic guidance on whether you act as principal or agent for VAT
  • High-level analysis of marketplace take rate and fees
Marketplaces are often misunderstood by banks and investors. We clearly separate total payment volume from what actually belongs to your company, reducing risk and confusion.

Key data and documents we’ll use

  • Bank statements and any separate client/escrow accounts
  • Platform reports showing gross transaction value and fees
  • Details of how/when you pay out to sellers or partners
  • Any platform terms explaining your role (principal vs. agent)
  • List of income streams: commissions, subscriptions, ads, etc.

Frequently asked questions

Is my turnover the whole GMV or just my commission?
It depends on whether you are acting as principal or as agent. We’ll review your contracts and flows and then adopt a consistent approach, explaining the reasoning so you can defend it if asked.
We hold customer money before paying out. Is that an issue?
It’s common for marketplaces. We’ll show any client or escrow balances correctly in your accounts and ensure your own income is clearly separated from money held on behalf of others.
We have buyers and sellers in multiple countries. What about VAT?
Cross-border VAT can be complex. We’ll highlight risks and edge cases and let you know where specialised VAT advice or overseas registration might be necessary, rather than guessing.

Marketplace & Platform package

For platforms where money flows through you, but not all of it is “yours”.

£129 + VAT / month
GMV up to £1m per year with a straightforward fee model.
  • Company accounts & CT600
  • Companies House filing
  • 1 × director Self Assessment
  • GMV vs. commission mapping

Complex flows (wallets, multiple currencies, regulated activity) will be priced after a discovery call.

Start my marketplace package Book a discovery call

Popular add-ons:

  • Monthly GMV & take-rate dashboards Add-on
  • Support with basic FCA / safeguarding questions Add-on
  • Quarterly board-ready management accounts Add-on