The short answer

HMRC says cash basis is the standard way to record income and expenses for sole traders and partnerships without corporate partners. Under cash basis, you record income when you receive money and expenses when you pay them.

Why this suits many online sellers

For a small eBay seller, cash basis is often easier because it follows actual money movement more closely than traditional accrual accounting:

  • income when money is received
  • expenses when bills are paid
  • profit based on cash movement, not unpaid invoices

HMRC explicitly says that with cash basis you do not pay Income Tax on money you have not yet received.

Why payouts fit naturally

eBay Managed Payments is a payout model. Money is collected, fees and adjustments are applied, and then a net amount is paid to your bank. For many non-VAT online sellers, that makes payout-based bookkeeping a practical fit with cash-basis thinking, because the bookkeeping can be aligned closely to real cash settlement events. This is an implementation judgement rather than a direct HMRC instruction, but it follows naturally from HMRC's definition of cash basis and eBay's payout model.

You still need proper records

Cash basis is not “no accounting”. HMRC says you must keep records of all business income and expenses and use them to work out your profit on your Self Assessment tax return.

For an eBay seller that usually means keeping a usable record of:

  • sales income
  • marketplace fees
  • refunds
  • other business expenses
  • payout dates and values

If you are using Xero, that usually means recording the payout structure before the bank match. See how to record eBay payouts in Xero for the operational version of that workflow.

Who can use it

HMRC says cash basis can be used by:

  • sole traders
  • partnerships without corporate partners

If you have more than one business, HMRC says you can choose cash basis or traditional accounting for each business separately.

Where people go wrong

Common mistakes:

  • assuming cash basis means only keeping bank statements
  • posting net eBay payouts as pure sales
  • not keeping enough detail on fees and refunds
  • using a workflow their accountant cannot follow

Cash basis is simpler, but it still needs clear categorisation.

Key point

Cash basis works well for many small online sellers because it is simpler and follows real money movement. But you still need accurate digital records of what happened inside each payout, not just the final deposit value.