Self-employed records: how long should UK senders keep them?

The practical problem often starts with a tidy-up: an old phone is replaced, an email account closes, or you stop packing for a shop and delete its folder. Months later, a bank statement still shows a transfer, but you cannot explain the work behind it. An archive organised around the tax return gives you a better stopping point than an inbox organised around each shop. This guide concerns UK self-employed business records, using HMRC guidance checked on 10 October 2026.

How do you calculate the date before deleting records? #

For an original illustration, the 2025–26 tax year has an online submission deadline of 31 January 2027. Applying HMRC’s normal retention rule gives the end of January 2032. Filing during summer 2026 would not bring that date forward. Put the relevant deadline and retention date on the archive itself, so you do not have to reconstruct the calculation when you change computers.

A retention date is a label for reviewing an archive. Keep unresolved correspondence beside it and check the position before deleting anything involved in an ongoing dispute. Separate business records from other household paperwork, because the rule for the activity does not answer every question about documents you hold. If you cease trading, retain the archive independently of the account or device you used for everyday work.

What changes if a return is submitted very late? #

HMRC gives a separate rule when a return is submitted more than 4 years after its deadline: keep the records for 15 months after sending that return. Check that wording against your actual filing history. An overdue return is not a reason to use the ordinary archive label without considering the late-filing rule.

In your own register, distinguish the submission deadline from the date you actually filed. Store the acknowledgement with the return. Someone reviewing the archive should be able to tell whether the normal calculation or the very-late-return provision was relevant without guessing from a file’s last-modified date. If several tax years remain unresolved, give each one its own status rather than marking the whole folder complete.

Which evidence belongs with a parcel-packing payment? #

HMRC expects accurate records that identify business transactions. Its list includes sales and income, business expenses and personal income, with supporting evidence such as receipts, invoices and bank statements. You normally retain this material instead of sending all of it with your return. For packing work, the useful connection is between a service payment and the order or agreement that explains it.

AirPost’s copy provides transaction downloads, monthly exports and a sender year overview organised by quarter. Use those as parts of your evidence set. Save the original export before sorting or adding notes to a working copy. The commission invoice explains a charge made to you; it should not be relabelled as your own invoice to a shop. Keep an agreement or other appropriate service document alongside the earnings entry so the relationship remains understandable.

The archive does not need the shop’s entire product catalogue. A shop’s customer sales and stock are different from your packing remuneration. Record enough order information to explain your work while avoiding an unnecessary duplicate of customer addresses. Where a cost was paid by the shop, note that payer instead of adding it to your own expenses. That distinction can prevent a neat spreadsheet from containing the wrong transactions.

How can you reconcile earnings with a smaller withdrawal? #

Consider an illustrative batch of 24 small parcels at the suggested fee of €2.25 each, read from AirPost’s constants on 10 October 2026. That gives €54.00 of remuneration. If the whole amount is withdrawn together, the 3% platform commission is €1.62, leaving €52.38 before your own costs and taxes. These are euro reference amounts, not a promised pound payout or a GBP figure to copy into a UK return.

That example produces several useful documents: the earnings entries, the withdrawal entry, the commission record and the bank confirmation. It produces one batch of work. Adding the earnings and withdrawal together would count the same money twice. Recording only the bank transfer would hide the charge. Match the references first; then decide which dates and amounts your accounting method needs.

For a real GBP receipt, save the amount and currency actually shown by your bank and any available conversion information. Do not construct a historical exchange rate from today’s display. If an accountant needs to check the currency treatment, give them both the source record and the actual bank evidence. See the existing sender payout guide for the product’s withdrawal process; this archive should preserve what happened in your case.

Why does a calendar-year download need a UK tax-year check? #

HMRC’s tax year runs from 6 April to 5 April. Its guidance says cash basis became the default accounting method from 2024–25, with an opt-out for traditional accounting where applicable. Under cash basis, receipts and payments matter; a document’s issue date is not automatically the receipt date. Establish your method before selecting transactions.

AirPost’s quarterly overview is useful for locating earnings, but a calendar-year total does not itself split transactions at the UK tax-year boundary. Inspect the detailed records around early April. Keep booking, availability, withdrawal and bank dates available when a platform payment crosses that boundary. Ask about the actual receipt point if it is uncertain; do not assume a later transfer into your own bank is always a new taxable receipt.

Make your tax-year working sheet from dated entries, and retain the source files used to create it. Give adjustments their own lines, with a reference back to the affected transaction. A note saying “April correction for order reference…” is more useful than quietly changing the annual total. It lets someone retrace the calculation without needing access to your current account.

What should you do when a receipt or export is missing? #

First try to replace it: download a bank statement, retrieve the original export, or request a copy from the document’s issuer. Preserve the request and response. HMRC distinguishes estimated figures from provisional figures used while actual information is still awaited; provisional figures need replacement with actual figures when available. Explain missing evidence when filing as HMRC directs.

1. 1

   Mark the gap

   Write down the affected period, transaction reference and missing document. Leave the unresolved amount visibly unresolved rather than inserting a number copied from an unrelated month.

2. 2

   Recover independent evidence

   Compare the bank entry with an earnings export, the agreement and the commission document. Record which item supports the amount and which only supports the explanation.

3. 3

   Keep the reconstruction

   Save a dated note showing your sources, assumptions and outstanding questions. Store later replacements beside the note so the change can be followed.

4. 4

   Resolve the filing treatment

   Check HMRC’s missing-record guidance or give the file to your adviser. Keep the submitted return and any subsequent correction with the same tax-year archive.

A screenshot of a current balance will rarely rebuild an old month on its own. It is a snapshot after whatever payments and withdrawals have happened since. Start with movements and supporting records. If two files disagree, preserve both and explain the discrepancy. Replacing the awkward one with the tidier one removes evidence of the issue without resolving it.

How can you make the archive usable years later? #

Use plain names containing the tax year, document type and month. Keep original downloads apart from the edited workbook. Store a short index describing where agreements, commissions, receipts and bank statements live. Then try opening the archive from a second device. A backup that exists only as a shortcut to the original folder will not help when the original disappears.

Before beginning with another shop, choose where its payment evidence will go. The earn from home page explains the sender role. A separate UK allowance and expenses comparison addresses the calculation method. Keeping the evidence now lets you answer both questions later without treating an old bank transfer as the entire history of your work.