Side hustles have become increasingly popular across the UK. Whether you’re selling products online, freelancing in your spare time, or earning money through content creation, it’s never been easier to generate extra income. If you are looking for a professional account in Kent, get in touch with King & Taylor today.
But one question comes up again and again:
Do you actually need to pay tax on a side hustle?
The answer depends on how much you earn and how regularly you’re making money. Below, we break it down in a simple, practical way so you know exactly what applies to you.
The £1,000 Trading Allowance Explained
The key rule to understand is the UK’s £1,000 trading allowance. This allows individuals to earn a small amount of income from side activities without needing to pay tax or report it to HMRC in most cases.
To make it clearer:
| Annual Side Hustle Income | What It Means |
|---|---|
| £0 – £1,000 | Usually no tax and no need to declare |
| Over £1,000 | Must inform HMRC |
| Profit after expenses | Tax may be payable |
This allowance applies to your total side income, not each individual activity. So if you’re selling items online andfreelancing, everything is combined.
When Do You Actually Pay Tax? From an Accountant in Gravesend
Once your income from side hustles goes over £1,000 in a tax year, you’ll need to tell HMRC and usually register for Self Assessment.
How To Fill In A Self Assessment Tax Return Uk
However, it’s important to understand that tax is not charged on everything you earn — only on your profit.
For example, if you bring in £4,000 from a side hustle but spend £1,500 on materials, tools, or other costs, you’re only taxed on the remaining £2,500. This is where keeping accurate records becomes essential.
Your profit is then added to your overall income, including your main job, and taxed according to your usual tax band.
What Counts as a Side Hustle?
Many people assume side hustles only apply to traditional freelance work, but HMRC takes a much broader view.
If you’re doing something with the intention of making money, it will likely count as taxable income. This includes things like selling products online, offering services, or earning through digital platforms.
A good way to think about it is consistency and intent. If you occasionally sell a personal item at a loss, that’s unlikely to be taxable. But if you’re regularly buying and selling for profit, HMRC will consider it trading.
Unsure if you have a side hustle or do you want to start one? This article gives you some ideas, Side hustle ideas: 15 clever ways to earn money on the side.
10 Popular Side Hustles in the UK
If you’re thinking about starting a side hustle, there are plenty of ways to earn extra income depending on your skills, time, and interests. Here are 10 popular options:
- Selling products online
Platforms like eBay, Etsy, Vinted, and Depop make it easy to sell handmade items, vintage goods, or resell products for profit. - Freelancing
Skills like web design, writing, graphic design, and marketing are in high demand on platforms like Fiverr and Upwork. - Tutoring or teaching online
You can teach school subjects, languages, or even skills like music and coding either locally or via Zoom. - Content creation (YouTube, TikTok, blogging)
Monetised through ads, sponsorships, and affiliate marketing once you build an audience. - Dog walking or pet sitting
A simple and flexible way to earn money, especially in local communities. - Delivery driving
Working with companies like Uber Eats, Deliveroo, or Amazon Flex in your spare time. - Photography or videography
Offering services for events, businesses, or selling stock images online. - Renting out assets
This could include renting out a spare room (Airbnb), driveway, or even equipment. - Dropshipping or eCommerce stores
Running an online shop without holding stock, often using Shopify. - Handyman or local services
Offering services like cleaning, gardening, decorating, or repairs in your area.
Profit vs Income – Why It Matters
One of the biggest misunderstandings around side hustle tax is the difference between income and profit.
Let’s look at a simple example:
| Description | Amount |
|---|---|
| Total income | £5,000 |
| Business expenses | £2,000 |
| Taxable profit | £3,000 |
In this case, you would only pay tax on £3,000 — not the full £5,000.
Understanding this distinction can make a significant difference in how much tax you actually pay, and it’s one of the main reasons people either overpay or underpay HMRC.
Do You Always Need to Register?
Whether you need to register with HMRC depends on how much you earn and how you’re operating.
If your side income stays below £1,000 and is genuinely occasional, you may not need to take any action. However, once you cross that threshold or start operating more like a business, registration becomes necessary.
At that point, you’ll need to complete a Self Assessment tax return each year and declare your earnings properly. Even if your tax bill is small, the reporting requirement still applies.
Common Mistakes to Avoid
When it comes to side hustle tax, many people make small mistakes that can lead to bigger problems later on. Here are some of the most common ones to watch out for:
Assuming HMRC won’t notice
It’s a common misconception that small amounts of income fly under the radar. In reality, platforms like eBay, Etsy, and other marketplaces are increasingly sharing data with HMRC. This means undeclared income is much easier to track than it used to be.
Thinking “it’s just a hobby”
If you’re making money regularly or with the intention of profit, HMRC is likely to view it as a business — even if it started as a hobby. The label you give it doesn’t matter as much as how you operate.
Not keeping proper records
Without clear records of your income and expenses, it becomes difficult to calculate your profit accurately. This can lead to overpaying tax or, worse, underreporting and facing penalties later on.
Forgetting about the £1,000 threshold
Some people assume they only need to pay tax after a certain amount, but the key trigger is actually declaring income once you go over £1,000. Even if your profit is low, reporting is still required.
Missing deadlines or registrations
Once you’re required to register for Self Assessment, there are strict deadlines to follow. Missing these can result in automatic fines, even if you don’t owe much tax.
Not setting money aside for tax
It’s easy to treat side hustle income as extra spending money, but tax will still be due later. Without planning ahead, many people get caught out by an unexpected bill.
Avoiding these mistakes early on can save you time, stress, and potentially costly penalties as your side hustle grows. Get in touch with King & Taylor today for more info and to chat to a professional accountant.
Final Thoughts
So, do you pay tax on a side hustle in the UK?
If your earnings stay below £1,000, you’ll usually fall within the trading allowance and won’t need to worry about tax. But once you go over that threshold, you’ll need to declare your income and may have tax to pay on your profits.
Understanding this early on can help you stay compliant, avoid penalties, and make the most of your extra income.
Need Help With Side Hustle Tax?
At King & Taylor, we support individuals and businesses across the UK with clear, practical tax advice.
Whether you’re just starting a side hustle or growing something more established, we can help you stay on track and make sure you’re not paying more tax than necessary.
