If you earn anything on the side — a bit of freelance work, selling on Etsy, the odd gardening job, renting out a driveway — the question of how to claim the trading allowance is one worth understanding properly. It’s a genuine tax break, and it can save you the bother of tracking every penny of income when you’re only earning a small amount.

But the allowance comes with conditions that aren’t always obvious, and in some cases the better move is to ignore it entirely and claim your actual expenses instead. We see people get this wrong in both directions: either missing the allowance when it would help them, or claiming it when it actively reduces their tax position.

This post sets out how the allowance works, who can use it, what the two types of relief look like in practice, and the situations where you’d be better off not claiming it at all.

The trading allowance is a tax exemption of up to £1,000 per tax year. It covers income from self-employment and casual trading — things like freelance services, babysitting, gardening, making and selling crafts, or hiring out personal equipment. It has been set at £1,000 since it was introduced in April 2017 and remains at that level for both 2025/26 and 2026/27.

A few things worth understanding about how it works:

• It applies to gross income, not profit. That means the full amount you received, before any costs or materials are deducted.
• It is one allowance in total, not £1,000 per activity or per platform. If you earn £400 from Etsy and £700 from Fiverr, your combined gross trading income is £1,100 — above the threshold.
• It is entirely separate from the Personal Allowance (£12,570 for most people in 2025/26). The two sit alongside each other, not on top of one another.
• It does not apply to trading income from a partnership. If you trade in partnership with someone else, the allowance is not available on that income.

There is also a separate property allowance, also £1,000, which applies to income from land or property. If you have both types of income, you can potentially claim both — but they are distinct reliefs and the rules around each differ in important ways.

The allowance operates in two different ways depending on the size of your gross trading income for the tax year.

Full relief — income of £1,000 or less

If your total gross trading income for the tax year is £1,000 or less, the entire amount is covered by the allowance. In most cases you will not need to report it to HMRC or include it on a Self Assessment return. There are some circumstances where you would still need to file — for example, if HMRC has sent you a notice to file or if you have other reasons to submit a return — so it is worth checking rather than assuming.

Partial relief — income above £1,000

If your gross trading income exceeds £1,000, you have a choice. You can deduct the £1,000 allowance from your income and pay tax on the remainder, or you can deduct your actual business expenses in the usual way. You cannot do both — it is one or the other in any given tax year.

Partial relief is worth considering when your actual expenses are low. If you earned £3,000 from freelance work and your only real cost was a £150 software subscription, claiming the £1,000 allowance leaves you with £2,000 of taxable profit rather than £2,850. That is a straightforward win. But if your expenses were £1,800, you would be better off claiming those instead.

One other point: you cannot use the allowance to create or increase a loss. If your income is below £1,000, the allowance simply reduces your taxable profit to zero — it cannot go further.

The trading allowance is not available in every situation, and the exclusions catch more people than you might expect.

You cannot use the allowance if any of your trading income in that tax year comes from:

• A company that you own or control, or that someone connected to you owns or controls
• A partnership where you, or someone connected to you, are a partner
• Your own employer, or the employer of your spouse or civil partner

That last point is particularly relevant for people who do freelance or consultancy work for the same company they are employed by. If you pick up a side project from your day-job employer and earn £800 from it, you might assume the allowance applies. It does not — and this exclusion applies to all of your trading income for that tax year, not just the portion that came from your employer.

It is also worth noting that HMRC’s data-gathering capabilities have grown significantly. Since January 2024, platforms such as eBay, Vinted, Etsy, and Airbnb are legally required to share seller and host income data with HMRC under international reporting rules. So even if you are well within the £1,000 threshold and never need to file a return, keeping basic records of your income is sensible. HMRC can request evidence during a compliance check, and it is far easier to produce records you already have than to reconstruct them later.

The trading allowance is not automatically the right choice, even when you are entitled to use it. In our experience, the cases where it works against you tend to fall into a few patterns.

Your actual expenses exceed £1,000

If you have spent more than £1,000 running your trade — on materials, equipment, professional subscriptions, or other allowable costs — you will reduce your tax bill further by claiming those expenses rather than taking the flat allowance. The numbers rarely lie here: if your expenses are higher, use them.

You want to carry forward a loss

Claiming the trading allowance prevents you from recording a trading loss. If your business is genuinely loss-making and you want to use that loss against other income or carry it forward, you need to claim actual expenses instead.

You receive Universal Credit or other means-tested benefits

How income is calculated for Universal Credit purposes differs depending on whether you claim the trading allowance or actual expenses. This is an area where the numbers can interact in ways that are not immediately obvious, and it is worth taking advice before assuming one approach is better than the other.

The honest answer is that for people with very low expenses and straightforward trading income, the allowance is a useful simplification. For anyone with meaningful costs or a more complex income picture, it is worth doing the maths properly — or getting someone to do it for you.

If your gross trading income was £1,000 or less and you have no other reason to file a Self Assessment return, you may not need to do anything at all. But if you do need to file — or if your income exceeded £1,000 and you want to claim partial relief — here is how the process works.

If your trading income exceeded £1,000 during the 2025/26 tax year (6 April 2025 to 5 April 2026), you need to register for Self Assessment by 5 October 2026. Your online tax return and any tax due must then be filed and paid by 31 January 2027. Missing these deadlines leads to penalties, so the earlier you sort this the better.

On the Self Assessment return itself, you will report your gross trading income in the self-employment or other income section. If you are claiming the trading allowance rather than expenses, there is a specific box to indicate this. HMRC’s guidance confirms you claim it by entering your gross income and then applying the allowance — you do not need to list individual expenses if you are using the allowance instead.

If you are unsure whether the allowance or actual expenses produces the better outcome, the simplest approach is to work out both figures and compare them. The difference is often clear-cut. If it is not, or if your tax affairs are more complex, it is the kind of question we help clients resolve quickly — without the jargon.