With living costs still high and flexible work now the norm, more people across the UK are choosing to take on more than one job. For some, it’s a side hustle. For others, it’s two part‑time roles that fit around family life. And for a growing number, it’s juggling multiple remote jobs at the same time.
This type of setup is often called moonlighting or holding multiple roles, and while it isn’t automatically illegal, it does come with important rules, risks and responsibilities.
Here’s what having more than one job really means in the UK — what’s allowed, what could cause problems, and how to protect yourself.
Is It Legal to Have More Than One Job in the UK?
Yes – it can be.
There’s no UK law limiting you to a single job. Many people legally work:
- A full‑time job plus a part‑time role
- Several part‑time jobs
- A PAYE job alongside self‑employment
The issues rarely come from having two jobs – they usually come from how those jobs interact.
When Having Two Jobs Becomes a Problem
1. Your Contract Doesn’t Allow It
Many employment contracts include clauses covering:
- Exclusivity (you can’t work for anyone else)
- Permission requirements for taking on additional work
- Conflicts of interest
Taking another role against these terms can put you in breach of contract – even if it’s outside your usual working hours.
2. You Exceed Legal Working Hours
Under the Working Time Regulations, most workers shouldn’t exceed 48 hours per week on average, unless they have formally opted out.
This limit applies to all jobs combined, not per employer.
Working excessive hours can lead to burnout and performance issues -often the first signs employers notice.
3. Being Paid Twice for the Same Hours
This is the biggest risk, especially in remote roles.
If two employers are paying you for the same working hours without agreement, it may be treated as misconduct – or, in serious cases, fraud – even if you believe you can complete the work.
Employers expect your time and focus during paid hours.
4. Conflicts of Interest
Working for competitors, clients, or organisations with overlapping interests can raise ethical and legal issues.
Even if it feels harmless, perceived conflicts can cause real problems.
Tax & HMRC: What You Need to Know
Having more than one job isn’t a tax issue in itself, but you must make sure:
- Your tax codes are correct
- You’re paying the right amount across all roles
- Any self‑employed income is properly declared
HMRC doesn’t mind how many jobs you have – but it will act if income isn’t reported properly.
Should You Tell Your Employer?
Some people assume that keeping quiet is safer. In reality, transparency often avoids bigger issues later.
Being upfront allows employers to:
- Identify conflicts early
- Agree boundaries around hours
- Protect both sides if questions arise
You don’t need to overshare – just be honest where contracts or working hours are affected.
How to Protect Yourself Before Taking a Second Job
Ask yourself:
- Does my contract allow additional work?
- Will the hours clash – even occasionally?
- Could this harm my wellbeing or performance?
- Would I be paid twice for the same hours?
If you’re unsure about any of these, slow down and seek clarity.
Final Thoughts on Working Multiple Jobs
Working more than one job isn’t new, but remote and flexible working have changed how visible it is.
When done openly and within the rules, having multiple jobs can be a practical way to boost your income. Done secretly or against your contract, it can put your job, income and reputation at risk.
If you’re looking for flexible roles, part‑time work or side opportunities, Jobs24 can help you find work that fits around your life – without putting your existing role at risk.
Because earning more shouldn’t mean worrying more.