Side hustles have become a familiar part of everyday life, from selling unwanted clothes online to taking on freelance jobs or renting out space through digital platforms. But anyone earning extra money this way should be aware of the tax rules that may apply.
Since the start of 2024, online platforms including Vinted, eBay and Airbnb have been required to pass user data to HM Revenue and Customs (HMRC) when certain thresholds are met. That includes users who sell more than 30 items in a year or earn more than about £1,700 annually. The threshold is set at €2,000.
That reporting requirement has led some people to assume they automatically owe tax if they are flagged to HMRC. In practice, that is not necessarily the case. The sharing of information does not by itself mean additional income tax is due.
The key point for anyone with a side hustle is to plan ahead rather than wait until tax time. Even modest earnings can create questions about whether income needs to be declared, what counts as taxable profit, and whether any reliefs or allowances apply. The nature of the work matters too: selling personal possessions is treated differently from carrying on a trading activity or receiving income from freelance work.
For people using online marketplaces, the number of items sold and the amount earned may be monitored more closely than before. But the reporting rules are only one part of the picture. A user who crosses a platform threshold may simply have been highlighted for information-sharing purposes, not identified as someone who definitely owes tax.
That distinction is important for casual sellers and side-hustlers who may be unsure about their obligations. The HMRC data-sharing rules are designed to provide visibility, but they do not replace the normal process of assessing whether a person actually has a tax liability.
Anyone making money from a side business or online sales is therefore advised to keep records and review their situation carefully. The safest approach is to stay organised from the start, rather than trying to work out later whether income should have been reported.
In short, side hustles can bring in useful extra cash, but they can also bring tax questions with them. The new reporting rules make it more likely that some platform users will come to HMRC’s attention, yet that is not the same as receiving a tax bill. Understanding the difference can help people avoid unnecessary worry and make sure they are prepared if they do need to declare income.
