The short answer

Making Tax Digital for Income Tax changes how many UK sole traders and landlords keep records and report income to HMRC. From 6 April 2026, it becomes mandatory for sole traders and landlords with total annual income from self-employment and property over £50,000. HMRC says compatible software will be needed to keep digital records, send quarterly updates, and complete the year-end process.

What HMRC requires

HMRC says compatible software must be used to:

  • create, store and correct digital records of income and expenses
  • send quarterly updates to HMRC
  • submit the final tax information and pay tax due by 31 January following the tax year

This matters for eBay sellers because marketplace activity can produce a lot of fragmented transactions. If your records are inconsistent or mainly manual, MTD increases the pressure to tidy that up.

Who needs to care now

As things stand, the first mandatory phase starts on 6 April 2026 for those over £50,000 of qualifying income. HMRC also states that Making Tax Digital for Income Tax is being rolled out in phases and that the government has announced extension to those with qualifying income over £20,000 by the end of this Parliament.

If you are below those thresholds today, that does not mean you can ignore the direction of travel. It means you have more time to get your records and software in order.

What counts as the practical problem for eBay sellers

The hard part is not filing a return. The hard part is maintaining clean digital records from messy marketplace data:

  • gross sales
  • fees
  • refunds
  • timing differences
  • payout settlements

That is why eBay sellers often struggle once they move from “I can work this out later” to “I need a repeatable digital record”. If you need the payout mechanics behind that record, start with how eBay Managed Payments works and how to record eBay payouts in Xero.

What not to misunderstand

MTD does not mean you must become a full accrual accounting expert overnight. It does mean you need reliable digital records and software support for HMRC's process. HMRC's guidance focuses on digital records, quarterly updates and software, not on forcing every small seller into a complex enterprise setup.

A sensible preparation plan

For a small UK eBay seller, practical preparation is:

  • Keep digital records consistently.
  • Separate sales, fees, refunds and adjustments.
  • Use software that can support your bookkeeping process cleanly.
  • Make sure your accountant can follow the output.
  • Do not wait until your threshold year to clean up your records.

Key point

For eBay sellers, MTD is mainly a records and workflow problem before it becomes a filing problem. The sellers who cope best will be the ones with clean digital bookkeeping before HMRC forces the issue.