Miscellaneous income is the sweep up category for income that no other part of the Income Tax rules catches, such as a one off introduction fee, a payment for acting as a guarantor or a fee for selling a story to a newspaper. It is charged under section 687 of the Income Tax (Trading and Other Income) Act 2005 (ITTOIA 2005), it goes on a Self Assessment return, and the £1,000 trading allowance can cover it if your total qualifying receipts are small.

What does miscellaneous income actually mean?

Section 687 ITTOIA 2005 charges Income Tax on “income from any source that is not charged to income tax under or as a result of any other provision”. HMRC calls this the sweep up charge and covers it in the Business Income Manual at BIM100000 onwards. Section 688 says tax is charged on the income arising in the tax year.

Two limits are built into the section itself. It does not apply to annual payments, and section 687(3) says it does not apply to income that would be taxed under another provision but for an exemption. So if something is specifically exempt elsewhere, the sweep up charge cannot be used to tax it instead.

HMRC’s overview at BIM100101 lists the main types of income caught:

  • a payment for a service where it was agreed that the service would be provided for reward
  • income received under an agreement or arrangement that is not otherwise taxable
  • payment for the use of money that is not interest and is not within the loan relationship rules

What kinds of casual income are caught?

The manual gives a series of particular sources, each backed by case law:

  • Introduction fees. If you are paid for introducing another customer to a supplier, the fee is miscellaneous income unless it is taxed elsewhere or is a genuine gift (BIM100210).
  • Guarantee fees. Agreeing to guarantee someone else’s borrowing in return for a reward is taxable; in Sherwin v Barnes a bonus paid for guaranteeing an overdraft was assessed (BIM100215).
  • Newspaper stories. A fee for giving information to a newspaper is taxable if not otherwise taxed, as in Hobbs v Hussey, where a solicitor’s clerk was taxed on payment for his life story (BIM100230).
  • Hire of equipment. Profits from hiring out movable items fall here where the activity is not a trade (BIM100220).

The amount of work does not decide the point. In Bradbury v Arnold the judge said a contract for services can be taxed under these rules even where the services are trivial or provided once and for all (BIM100120). What counts is whether there was an agreement or common expectation of reward.

What is not miscellaneous income?

BIM100101 is clear that the sweep up charge does not tax everything that falls outside the other headings. It does not catch:

  • capital gains on isolated transactions in assets, such as selling a single item you happened to own at a profit
  • voluntary gifts and gratuities, including a thank you payment where there was never any agreement to pay
  • winnings from bets and wagers
  • post cessation receipts, which have their own rules

Cashback you receive as a customer for buying something is also outside the charge. HMRC’s view, from Statement of Practice 4/97 as summarised at BIM100210, is that a customer choosing where to buy is not providing a service. The position changes if you are paid for introducing someone else.

Is it miscellaneous income or a trade?

This is the first question to settle, because the treatment differs. If casual activity is repeated, organised and done with a view to profit, it may amount to a trade, and the badges of trade decide that. A trade brings in self employed National Insurance, capital allowances and the full trading loss rules.

Miscellaneous income is narrower. BIM100155 says there is normally no entitlement to capital allowances, and interest paid is normally not deductible because borrowing to fund an occasional activity is itself a pointer towards trading. Other expenses follow the trading rules so far as they apply, so they must be incurred wholly and exclusively to earn the income.

Non cash payments can still be taxable. BIM100150 gives the example of a newspaper offering a holiday or a cash alternative for a story: the cash alternative is taxed. A non transferable holiday with no cash option is not, because it cannot be turned into money.

When does the £1,000 trading allowance apply to miscellaneous income?

The trading allowance in Chapter 1 of Part 6A ITTOIA 2005 covers both the receipts of a trade carried on alone and miscellaneous income (section 783A). Section 783AB defines miscellaneous income for this purpose as everything that would be charged under section 687, before deducting any expenses. Section 783AD sets the allowance at £1,000 a year.

The allowance is one figure shared across both kinds of income. Your “relevant income” under section 783AC is your sole trader receipts plus your miscellaneous income.

  • Full relief. If relevant income is £1,000 or less, it is not taxed at all (section 783AE) and you usually do not need to report it, though you must keep records.
  • Partial relief. If relevant income is over £1,000, you can elect under section 783AM to deduct the allowance instead of actual expenses (section 783AJ). Where you also have trading receipts, section 783AK lets you split the £1,000 between them, but the allowance cannot create a loss on the miscellaneous income.

There are exclusions. No relief is given for the year at all if the income includes a payment from your employer or your spouse’s or civil partner’s employer (section 783AO), from a partnership in which you or a connected person are a partner (section 783AP), or from a close company in which you or an associate are a participator (section 783AQ). A director paid a one off “consultancy fee” by their own company cannot shelter it with the allowance. Rent a room receipts are kept out of the allowance (section 783AB(2)); see rent a room relief, and for rental income the separate property income allowance.

How do you report miscellaneous income to HMRC?

HMRC’s guidance on the allowances says that if you have other gross income over £1,000 and up to £2,500 you should contact HMRC, and if it is over £2,500 you must register for Self Assessment. A new registration is due by 5 October after the end of the tax year. Our guides to who needs to file a tax return and registering for Self Assessment cover the process.

On the return itself, helpsheet HS325 (Other taxable income) explains that casual earnings, commission and freelance income not covered by the trading allowance go in boxes 17 and 18 of the “Other UK income” section on page TR 3 of the 2025 to 2026 return. If you have used part of your £1,000 allowance against self employed income, only the unused part can be deducted from miscellaneous income.

Some of this income is now visible to HMRC from third parties. If the money came through an online platform, read our guide to digital platform reporting.

What happens if you make a loss?

Section 152 of the Income Tax Act 2007 allows a loss on a miscellaneous transaction to be set only against relevant miscellaneous income, in the same year and later years. It cannot be used against salary, pensions or trading profits. HS325 adds that losses must be tracked by type and set only against income of the same type in a later year, so keep separate records for each source.

Claiming the trading allowance rules out a loss. If you deduct the £1,000 instead of expenses, HS325 confirms the expenses are not deductible and you cannot generate a loss, so compare both methods before electing.

A worked example

Illustration only. Sam is employed and has no business. In the tax year, a local builder pays Sam £1,600 under an agreed arrangement for introducing three customers. Sam spends £150 on travel to meet the builder.

Method Calculation Taxable amount
Actual expenses £1,600 less £150 £1,450
Trading allowance (partial relief) £1,600 less £1,000 £600

The allowance gives the lower figure, so Sam elects for partial relief and reports £600 of miscellaneous income. If the builder had been Sam’s employer, section 783AO would block the allowance and the fee would in any case need checking as possible employment income. If Sam had received only £900, full relief would apply and nothing would be taxable.

What mistakes do people make with miscellaneous income?

  • Assuming a one off payment is tax free because it is one off. Bradbury v Arnold shows a single, small service can still be taxed.
  • Treating a commission for introducing friends as cashback. Cashback on your own purchases is outside the charge; introduction fees are not.
  • Claiming the trading allowance against payments from your own company, partnership or employer, which sections 783AO to 783AQ exclude.
  • Using the £1,000 twice, once against a side business and again against miscellaneous income. It is a single allowance.
  • Setting a miscellaneous loss against other income. Section 152 ITA 2007 restricts it to relevant miscellaneous income.
  • Forgetting that regular, organised activity may be a trade, with National Insurance and different reporting.

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Reviewed by Christine Anderson, Broker, Solar Protect. Last reviewed 8 October 2026. Part of Accountapedia, the Solar Protect guide to UK tax and accounting. This page is general information, not personalised advice.