Written by Fanny Di Domenicantonio, Director, Fox & Cubs Nanny & Private Staff Agency.
For many families in London, one of the first questions that arises when exploring childcare is whether to hire an au pair or a nanny. Both options involve someone supporting children within the home, but the reality is that these are fundamentally different roles different in experience, responsibility, legal structure and the level of support they provide.
Understanding the difference between an au pair and a nanny is essential to making the right decision for your family. At Fox & Cubs, we guide families through this decision every day, ensuring they choose a solution that genuinely supports their lifestyle rather than one that creates new pressures. You can explore our professional nanny services to understand the level of support a qualified nanny provides.
What is an Au Pair?
An au pair is typically a young person, often aged between 18 and 25, who lives with a host family as part of a cultural exchange programme. The arrangement is designed to be mutually beneficial the au pair gains language experience and cultural immersion, while the family receives light support in the home.
Au pairs are not professional childcare providers. They typically work a limited number of hours per week, usually between 25 and 30, and receive pocket money rather than a salary. Their stay is generally temporary, often between six and twelve months, and they are usually expected to attend language classes or study alongside their time with the family. For official guidance on the legal status of au pairs in the UK, the GOV.UK au pair employment guidance provides a useful reference point.
What is a Nanny?
A nanny is a professional childcare provider with experience, formal or informal training, verifiable references and a genuine career in childcare. Unlike an au pair, a nanny takes full responsibility for children’s daily care, routines and development and is employed as a member of staff, not as a cultural exchange participant.
A professional nanny can work full-time hours, manage complex routines across multiple children, travel with the family and provide the kind of consistent, structured support that busy London households genuinely depend on. They are employed under a formal contract, paid a proper salary and managed through PAYE because they are, in every sense, an employee. For a full picture of what a nanny’s day-to-day role involves, read our live-in nanny duties guide.
Key differences: Au Pair vs Nanny
The distinction between these two roles goes well beyond cost, and understanding it fully is important before making a decision.
Experience and expertise: An au pair brings limited childcare experience, often with younger siblings or casual babysitting at most. A professional nanny brings years of dedicated childcare experience, often across multiple households and a range of ages. For families with young children, newborns, or children with specific needs, this difference is significant.
Working hours: Aupairs typically work part-time hours of 25 to 30 per week. A nanny can work full-time hours of 40 to 60 per week or more, adapting to the demands of the household. For working parents in London, this distinction is often the deciding factor.
Responsibility: An au pair provides light support and basic help with children. A nanny carries full responsibility for daily childcare, including school runs, routines, meals, development support, homework, activities and emotional wellbeing.
Legal and financial structure: An au pair is not considered an employee in the same way as a nanny. A nanny requires a formal employment contract, PAYE registration, tax contributions and pension enrolment. For guidance on those obligations, read our tax, payroll and legal guide for nanny employers.
Cost: An au pair typically receives pocket money of between £100 and £150 per week. A professional nanny commands a salary of between £550 and £800 or above net per week, reflecting the very different level of experience and responsibility involved. For a full cost breakdown, read our cost of a live-in nanny in London guide.
Which option is right for your family?
The right choice depends entirely on what your family genuinely needs — and being honest about that from the outset saves a great deal of time and frustration.
An au pair may be suitable if you need light, part-time support, your children are older and relatively independent, you are interested in a cultural exchange element, and full-time professional childcare is not a practical necessity for your household.
A nanny is the right choice if you work full-time, your schedule is demanding or unpredictable, you have younger children or a newborn, you need structured and reliable daily routines, and you want someone who brings professional expertise and long-term commitment to the role. For most busy London families managing careers alongside active family lives, a professional nanny provides the level of consistency and capability that an au pair simply cannot.
The most common mistake families make
The most frequent difficulty we see is families hiring an au pair when they genuinely need a nanny usually because the cost difference appears significant at first glance. In practice, the gap in support is far greater than the gap in cost. Families who underestimate how much professional childcare support they need often find themselves managing the situation again within a few months, and the disruption to children of an early departure is itself a real cost.
Taking time to assess your needs honestly at the outset ideally with the guidance of an experienced agency is always the better investment.
Other childcare options worth considering
Depending on your family’s needs, it is also worth considering some of the other professional options available through Fox & Cubs. A live-out nanny provides professional daily childcare without living in your home, which suits families with more structured schedules. A nanny housekeeper combines childcare with household management in a single role. And for families welcoming a newborn, a maternity nurse provides specialist support during the earliest and most demanding weeks.
How Fox & Cubs can help
At Fox & Cubs, we help families assess their childcare needs clearly and honestly before any search begins. We explain the practical implications of each option, advise on the most suitable structure for each household and introduce carefully vetted candidates who are genuinely matched to the role.
Our goal is to ensure your childcare solution truly works for your lifestyle not just in the first weeks, but for the long term. If you would like to discuss what would best suit your family, get in touch with our team.
Fox & Cubs Insight
“Families often come to us having already tried an au pair and found that it was not quite right for their needs. There is no shame in that it is a very common journey. But understanding the difference between the two roles before making a decision saves a great deal of disruption, particularly for the children.” Caroline, Client Consultant – International, Fox & Cubs Nanny & Private Staff Agency.
Frequently Asked Questions
What is the main difference between an au pair and a nanny?
An au pair participates in a cultural exchange programme, works limited hours and is not a professional childcare provider. A nanny is a qualified, experienced childcare professional employed on a full-time basis with full legal employment status.
Is an au pair significantly cheaper than a nanny?
Yes in terms of headline cost, but the level of support is very different. An au pair receives pocket money of around £100 to £150 per week. A professional nanny earns between £550 and £800 or above net per week, reflecting their experience, qualifications and full responsibility for daily childcare.
Can an au pair work full-time hours?
No. Au pairs typically work between 25 and 30 hours per week as part of a cultural exchange arrangement. For families who need full-time childcare support, a professional nanny is the appropriate choice.
Do nannies require formal employment contracts?
Yes. A nanny is a household employee under UK law and must be employed through a formal contract with PAYE registration, tax contributions and pension enrolment where applicable.
Which is better for families with young children or a newborn?
A professional nanny is significantly more suitable due to their experience, qualifications and full responsibility for childcare. For newborns specifically, a maternity nurse provides the most specialist support during the early weeks.
Can I switch from an au pair to a nanny later if my needs change?
Yes, this is a common and straightforward transition. Many families start with an au pair and move to a professional nanny as their children grow, their schedule becomes more demanding, or they realise they need a higher level of structured support. Fox & Cubs can guide you through that transition and help you find the right nanny when the time comes.
Conclusion: Choosing the Right Support for Your Home
The difference between an au pair and a nanny is not simply about cost it is about experience, reliability, responsibility and the level of support your family genuinely needs. Choosing the right option from the outset makes a real and lasting difference to how your household functions day to day.
At Fox & Cubs, we are here to help you make that decision with confidence and clarity. Speak with our team to discuss your family’s childcare needs.
Looking for payroll support for your nanny?
Discover more about our partner Nannytax: www.nannytax.co.uk
About the Author
Fanny Di Domenicantonio is the Director of Fox & Cubs Nanny & Private Staff Agency. With over 20 years of international business and management experience, and as a mother of three herself, Fanny brings a relationship-driven approach and genuine personal understanding to every placement. Her focus is on delivering a premium, personalised service built on trust, expertise and care ensuring every family feels confidently supported and every placement is set up for long-term success. Learn more about the Fox & Cubs team.
About Fox & Cubs
Fox & Cubs Nanny & Private Staff Agency supports families in London and internationally with carefully vetted childcare and household professionals. With a personalised approach and a deep understanding of family life, the agency helps households find reliable, long-term support. Get in touch to discuss your family’s needs.
