Side Hustle That Fits: A Practical Guide for UK Graduates

Thinking about a side hustle alongside your full-time job? This UK graduate guide covers tax rules, freelancing realities, and practical steps to get started.

Brandan Kaul

Side Hustle That Fits: A Practical Guide for UK Graduates

Starting a Side Hustle: What You Need to Know

Many graduates consider a side hustle to earn extra money outside their main job. Whether it is freelancing in a skill you developed at university, selling things online, or tutoring in a subject you know well, it can bring in useful income and give you a sense of independence.

But before jumping in, it helps to understand the practical side: what the tax rules are, how common side hustles actually are, and what to check with your landlord or employer first. This guide covers the key facts so you can decide what works for you.

If you are a recent graduate in full-time employment, most of your basic costs are already covered by your salary, so a side hustle is about what you want beyond that, not about making ends meet. That is a good place to start from.

The Graduate Employment and Self-Employment Picture

Graduate employment in the UK remains strong. In 2024, 87.6% of working-age graduates in England were employed, with 67.9% in high-skilled roles ^[1]. The median salary for all working-age graduates was £42,000, compared with £30,500 for non-graduates ^[1]. For recent graduates in full-time UK employment 15 months after finishing their degree, the average salary was £30,030 ^[2].

Alongside traditional employment, a significant minority of graduates pursue self-employment. According to the latest HESA Graduate Outcomes survey, 11.4% of graduates in work were self-employed or actively working towards that goal ^[3]. Among first-degree graduates who had been out for 15 months, 12.3% were self-employed, 8.3% freelancing and 4.1% running their own business ^[3].

12.3% of UK graduates were self-employed 15 months after finishing their degree, the majority as freelancers. ^[3]

How Common Are Side Hustles in the UK?

Side hustles are not unusual in the UK. Between January and March 2026, 1.275 million people in the UK held a second job, that is 3.7% of everyone in employment ^[4]. The average person with a second job worked around 9.4 hours per week on it ^[5].

What this tells us is that side hustles are common enough that the systems around them: tax rules, housing permissions, marketplaces, are well established. It also tells us that most people keep their side work modest in terms of hours. A side hustle is something you fit around your main job, not a second full-time commitment.

What Kind of Side Hustles Do Graduates Do?

Graduates who freelance tend to concentrate in particular sectors. According to the HESA Graduate Outcomes survey, freelancing graduates were heavily concentrated in arts, design and media (31.9%), education (9.3%) and health (9.2%) ^[3]. Self-employed graduates were most likely to be based in London, the South East and the East of England ^[3].

85.6% of freelancing graduates said their work felt meaningful. ^[3]

A striking finding is how many self-employed graduates find their work meaningful. 85.6% of freelancers and 88.5% of those running their own business felt their work was meaningful ^[3]. That is higher than many traditional graduate roles, and it suggests that for many graduates, side work is not just about the money.

Freelancing as a Side Hustle

Freelancing means offering your skills or services to multiple clients on a project-by-project basis. Common graduate freelancing includes graphic design, writing and editing, social media management, tutoring, photography, and music teaching. You set your own rates and choose which projects to take on.

Selling on Online Marketplaces

Selling goods through online marketplaces, whether handmade items, vintage clothing, or second-hand goods, is another common option. For those who trade on online marketplaces, the average net income in the previous 12 months (as of 2021) was £2,170 ^[13].

Gig Economy Services

Gig economy work covers a wide range of platform-mediated services. The most common gig activity was courier or delivery services (42%) ^[13]. Income from gig work tends to be modest: 41% of gig workers earned less than £250 per year from gig work, and 87% earned less than £10,000 per year ^[13]. For platform-mediated services broadly, average net income in the previous 12 months (as of 2021) was £3,880 ^[13].

Understanding the Tax Rules

The tax rules for side hustles are clearer than many people expect. If your gross income from all side activities combined is £1,000 or less in a tax year (April to April), you generally do not need to tell HMRC or register for Self Assessment ^[6]. This is known as the trading allowance.

If your total gross side income exceeds £1,000 in a tax year, you must register as a sole trader and declare the income on a Self Assessment tax return ^[7]. You have two options for calculating what you owe:

Use the £1,000 trading allowance and simply report your total income
Claim your actual expenses (the costs of running your side hustle)

You cannot use both ^[7]. The trading allowance is a single allowance across all your side hustles, not per activity, if you both freelance and sell on an online marketplace, the £1,000 allowance covers everything combined ^[8].

How It Interacts with Your Main Job

If you are employed through PAYE at your main job, your Personal Allowance (£12,570) is normally allocated to your main job first ^[9]. Your side hustle income is taxed in addition to your main salary, at the tax band your total income falls into.

Registration and Deadlines

If you need to register for Self Assessment, you must do so by 5 October after the end of the tax year in which your income exceeded £1,000. The online tax return deadline is 31 January ^[7].

National Insurance

If your self-employed profits are below the Small Profits Threshold (£6,845 per year for 2025/26), you do not usually need to pay Class 2 National Insurance. Above that threshold, Class 2 NI applies. If your profits are between £12,570 and £50,270, you also pay Class 4 NI at 6% ^[10].

Digital Platforms Must Report Your Income

From 1 January 2024, UK digital platforms such as online marketplaces and gig economy apps must report seller income to HMRC ^[11]. This means HMRC already has visibility of income earned through these platforms, even if you have not declared it. HMRC-commissioned research found that around 1 in 10 people in the UK operate in the hidden economy, with 65% of those likely running side hustles unaware of their tax registration obligations ^[12].

This is not intended as personal tax advice. HMRC rules can change and individual circumstances vary. For questions about your specific situation, visit GOV.UK or speak to a qualified accountant or tax adviser.

Other Practical Considerations

Before you start a side hustle, there are a few practical things to check.

Permission from Your Landlord

If you rent your home, most private tenancy agreements require landlord permission to run a business from the property ^[14][15]. You may also need to check with your mortgage provider if you are a homeowner. Selling a few items on an online marketplace from home is usually fine, but running a regular tutoring operation or using your home as a business premises may need explicit permission.

DBS Checks for Tutoring

If you plan to tutor children or vulnerable adults as a self-employed tutor, you may need an Enhanced DBS check ^[17]. Private tuition in a subject ordinarily taught in school or university, provided by an individual teacher independently, is exempt from VAT ^[18].

Student Visa Holders

This is an important one: if you are an international graduate on a Student visa, you cannot legally be self-employed or run a business in the UK ^[19]. This means freelancing, tutoring as a sole trader, or setting up a company are not permitted under your visa conditions. If this applies to you, please check the rules for your specific visa type on GOV.UK.

National Minimum Wage

Genuinely self-employed people are not entitled to the National Minimum Wage ^[16]. This is because self-employed people set their own rates and choose which work to take on. The National Minimum Wage does apply to employees and workers, but not to the genuinely self-employed.

How to Get Started: A Balanced Approach

Putting It All Together

A side hustle can be a meaningful addition to your life as a graduate: financially, creatively, or both. The key is to approach it with open eyes: understand the tax rules, check your practical obligations, and start small.

Most graduates who freelance or run a business find their work meaningful ^[3], and many keep it as a part-time pursuit alongside traditional employment. That is a realistic and sustainable model.

If you are not sure where to start, the GOV.UK guidance on self-employment and the trading allowance is clear and well written. MoneyHelper also has free guidance on managing multiple income streams. And if you have questions about your specific circumstances, speaking to a qualified accountant or tax adviser is a sensible step.

Disclaimer: GradIRL is not a tax, legal or financial adviser. This article presents factual information from UK government sources. For personal tax or legal advice, please consult a qualified professional or visit GOV.UK.