UK parcel income: trading allowance or actual expenses?

A small packing activity can have modest personal costs, but that does not prove the allowance is always the better choice. You may also have another trade, buy equipment or begin with a loss. This guide shows how to compare the two methods without treating every household bill as a business expense. It uses GOV.UK and HMRC pages checked on 9 October 2026. Start with the UK trading allowance overview if the basic eligibility rules are unfamiliar.

What are the two calculations you are comparing? #

HMRC describes partial relief as an alternative calculation for relevant income exceeding the allowance. The eligible individual elects to use it through Self Assessment, subtracting the allowable trading-allowance deduction without separate expense or capital-allowance deductions. The normal method calculates taxable profits under the ordinary rules. Make both calculations from the same complete income records before comparing their results.

For a simple single trade with no other adjustments, the comparison is gross receipts less £1,000 versus gross receipts less qualifying costs. That is a useful starting point, not a rule that every item on a receipt qualifies. Existing losses, capital treatment and multiple trades can require additional steps. Identify those features first so the apparent saving is based on the method you can actually use.

How do different costs change a worked example? #

In the final row, the expenses method lowers the simplified taxable-profit figure by £300 compared with the allowance method. It does not put £300 back into your bank. The cash costs were £1,300 under either calculation. Any tax saving depends on the tax that would otherwise apply to the profit difference. Do not confuse choosing the lower taxable figure with recovering the whole cost of running the activity.

Which packing costs did you actually pay? #

AirPost’s copy describes a shop sending its goods and packaging to a sender and paying for the shipping label. Those shop-paid items are not your personal spending merely because you handle them. Your records should distinguish supplies the shop provided from anything you purchased under a separate agreement. If the shop repays a purchase, retain the repayment record as well as the original receipt and check their tax treatment together.

Start a cost sheet with the date, item, payer, business purpose, any personal use and the supporting document. Then mark items whose tax treatment needs checking. This is more reliable than assuming a fixed expense for every parcel or claiming the retail value of stock you never bought. The earn from home page explains the service itself; the income-and-cost sheet should describe your own transactions within that service.

Can you claim the whole phone or household bill? #

GOV.UK says only the business part of a mixed expense can be claimed. Its home-working guidance requires a reasonable way to divide relevant costs. A bill for the whole household therefore cannot simply be added to parcel costs in full. Record the business use and how you estimated it. Where you use an eligible simplified-expenses method, follow its conditions rather than inventing your own flat amount.

Consider an original illustration: an annual shared service costs £360 and you can support a business-use portion of £90. The possible business amount for the normal expenses calculation is £90, subject to the relevant rules, not £360. Keep the reasoning with the bill. If you choose the trading allowance, that same expense does not become an additional deduction. The comparison must use complete, internally consistent methods.

How does equipment differ from routine spending? #

GOV.UK’s office-and-equipment page distinguishes stationery and other ordinary costs from equipment you keep, such as a computer or printer. For that equipment it describes allowable-expense treatment under cash basis and capital allowances under traditional accounting. Establish your accounting method before assuming a purchase belongs in ordinary expenses. A receipt proves spending occurred; it does not by itself select the tax treatment.

Keep the purchase date, business purpose and any personal-use details. If a device is shared with ordinary household activity, preserve the evidence for the business portion. Do not buy an unnecessary item just to make the expenses column larger. Compare the activity’s cash result before and after the purchase separately from its tax calculation. A lower taxable profit can still accompany a worse personal cash position.

What if costs exceed the income you received? #

The trading allowance cannot create a tax loss. HMRC’s manual explains that an individual may elect out of full relief, and gives a loss-making example where the normal calculation is used. If you have £900 of relevant receipts and £1,200 of genuinely allowable costs, the original simplified expenses calculation gives a £300 loss. Applying the allowance instead can reduce relevant income to nil, but cannot produce that loss.

Loss treatment is a separate question. Check the rules and election requirements before assuming the loss refunds tax from your salary or reduces another activity’s income. Keep the cost evidence even when the receipts are low. Also distinguish a tax loss from unsold products belonging to the shop: holding its inventory does not establish that you personally bought stock and incurred a deductible loss.

Does another side hustle change this comparison? #

Yes. HMRC’s multiple-trades partial-relief guidance applies the allowance across the relevant trades, with one total allowance and no additional otherwise allowable expense deductions for those trades under that method. You cannot optimise each source as if it came with an independent allowance. Bring the relevant income and costs into the comparison together, preserving each trade’s records so the calculations can still be explained.

For example, a packing activity with few costs and a separate activity with substantial qualifying costs may produce a different combined answer from packing alone. Do the calculation using the complete relevant figures. The multiple-side-hustles allowance guide explains aggregation and allocation. If the activities involve different income categories or an exclusion, resolve that classification before using a combined shortcut.

What should you check before completing the return? #

1. 1

   Confirm allowance eligibility

   Check the relevant income and connected-party exclusions. A payment from an employer or a connected business needs attention even if the amount is small.

2. 2

   Reconcile gross service income

   Match invoices and fee statements to payouts. Show any charges separately so a net bank deposit is not mistaken for the gross reporting figure.

3. 3

   Check each possible cost

   Remove personal amounts and spending by the shop. Separate routine costs, mixed use and equipment treatment under your accounting method.

4. 4

   Compare complete methods

   Calculate the allowance result and the ordinary profit result, taking account of relevant trades and any applicable loss or capital rules.

5. 5

   Keep the calculation you used

   Complete the appropriate return entries and retain evidence. GOV.UK says expense proof is not normally sent with the return, but must be kept for HMRC if requested.

Do not stop at the comparison if the gross-income reporting test has already been met. Low profit does not remove the need to check Self Assessment. Benefit calculations are separate too: GOV.UK states the trading allowance does not affect income for Universal Credit. Keep the underlying receipts and costs usable for those other purposes rather than assuming the tax return’s allowance figure describes every income-reporting system.