Leaving France for London: what nobody tells you (7 years later)

Summary: what you need to know before leaving France for London
Leaving France to live in London is achievable, but the administrative, cultural, and financial differences run far deeper than a simple move. After 7 years in London — including Brexit, COVID, and a complete career change — here’s what I wish someone had told me before I left.
Who am I to talk about this?
My name is Alexandre Auger. In 2016, I created francejetequitte.com — the first French-language blog about « leaving France » — while already living abroad. In 2019, I settled in London. I’m still here in 2026.
I’m not an expatriation consultant. I’m an entrepreneur who has lived every step: the post-Brexit settled status, the British banking system, pub culture, COVID in a Southbank apartment, and building a tech company from the UK.
What follows isn’t an administrative guide copied from an insurance website. It’s a raw experience report, with the real shocks that nobody mentions.
The credit score: shock number one when you arrive from France
In France, the credit score doesn’t exist. French banks assess your « solvabilité » by looking at payslips and your debt-to-income ratio (capped at 35%). If you’ve never had an incident, you’re invisible — and that’s fine.
In the UK, it’s the opposite. Everything relies on a three-digit score (Experian, Equifax, TransUnion). Every bill paid, every card used, every phone contract contributes to building — or destroying — this score.
What this means in practice when you arrive:
- Your French history is worth nothing. Zero. You start from scratch in the UK.
- You can’t easily rent a flat. Landlords check your credit score. Without history, you pay 6-12 months upfront.
- You can’t get a phone contract. Pay-as-you-go for months while building a score.
- Even opening a bank account is an obstacle course. Monzo and Revolut simplified things, but traditional banks (HSBC, Barclays) ask for proof of address — which you don’t have yet.
How I built my credit score:
- Opened a Monzo account (no historical address verification needed)
- Registered on the Electoral Roll — +50 points immediately
- « Builder » credit card (Aqua, Capital One) with a £200 limit
- Full payment every month, no exceptions
- Phone contract after 6 months
- After one year: score sufficient to rent without a guarantor
| Criteria | France | United Kingdom |
|---|---|---|
| Centralised score | No (negative system only) | Yes (positive and negative) |
| Primary metric | Permanent contract + 35% debt ratio | 3-digit score (0-999) |
| Daily life impact | Low (bank + mortgage only) | Total (housing, phone, insurance, employment) |
| Transferable history | Not applicable | Does not transfer between countries |
| Credit cards | Don’t really exist (deferred debit) | Essential for building history |
Pub culture: it’s not just « having a drink »
In France, after-work means an apéro — a glass of wine, some cheese, a café terrace. It’s relaxed, civilised, lasts an hour.
In London, the pub is social life. It’s not optional — it’s where everything happens:
- Business deals happen at the pub, not in meeting rooms
- Your manager judges you (also) on your pub presence on Friday evenings
- Hierarchies dissolve around a pint — juniors talk to directors
- The « round » (buying rounds of pints) is an unwritten social code you must master
- You don’t eat. Well, not necessarily. The English can chain 4 pints without touching food
Cultural differences that struck me:
- You drink standing up. Outside if it’s 5°C. No problem. Heated French terraces don’t exist here.
- You drink fast. « Let’s grab a quick pint » rarely stays at one pint.
- Pubs close early (11pm weekdays). No bars open until 2am like in Paris.
- No table service. You order at the bar, pay at the bar, go back to your seat.
- The Sunday roast replaces the French Sunday lunch. Beef, Yorkshire pudding, gravy. It’s sacred.
Living through Brexit from the inside: from EU citizen to « migrant »
I was in London when Boris Johnson formalised Brexit on 31 January 2020. Overnight, my status changed. I went from « EU citizen with freedom of movement » to « foreigner who must prove their right to stay. »
The Settled Status — what they don’t tell you:
- 278,887 French citizens applied for settled status since 2015
- 38,168 French citizens outright took British nationality since 2016
- The process is « free » but the anxiety is real: you scan your passport on an app, wait, and hope an algorithm validates your life
What actually changed:
- Your French ID card no longer works to enter the UK — passport mandatory
- Your parents visiting must go through the « All Passports » queue at Heathrow
- If you leave the UK for more than 2 years, you lose your settled status
- New French arrivals need a points-based visa (minimum salary £38,700/year in 2026)
- The emotional atmosphere: a latent feeling of rejection. You’ve lived here for years, you pay your taxes, and you’re asked to « prove » you deserve to stay.
COVID in London — moving opposite the London Eye during lockdown
March 2020. The world stops. And I’m moving.
Not to just any neighbourhood. To Southbank Place, One Casson Square — a 36-storey tower facing the Thames, in SE1. The London Eye to the left. Big Ben and Parliament across the river. A 25-metre swimming pool in the basement. Gym. 24/7 concierge.
And nobody in the streets.
What COVID in London taught me:
- The NHS works. Not perfect, but the vaccine was free, fast, accessible. The British vaccinated faster than any European country.
- The English follow rules… then explode. Strict lockdown → reopening → everyone at the pub the same day.
- The furlough scheme was generous — 80% of salary covered by the state. Faster and simpler than French schemes.
- Living in a luxury building during lockdown is surreal. Pool closed. Gym closed. View of a ghost city from the 20th floor.
- Boris Johnson was partying while the country was locked down. « Partygate » was a political earthquake. Unthinkable in France — or rather, nobody would have found out.
The 300,000 French in London — France’s 6th biggest city?
Boris Johnson liked to say London was « the 6th largest French city. » The consulate estimates 300,000 French people in Greater London. On the official register: 134,723 enrolled as of January 2026.
But note: it’s no longer the South Kensington of 20 years ago. The French have dispersed:
- Kentish Town, Camden, Hampstead — bilingual schools, neighbourhood life
- Southbank, Bermondsey, Borough — young professionals, startups, finance
- Canary Wharf, Greenwich — banks, tech, families
- Clapham, Battersea — the « Frog Valley » of the south
Six years after Brexit, the French haven’t fled. They’ve adapted. Like me.
London, increasingly reserved for millionaires — who are leaving anyway
My building, Southbank Place, is a good barometer. In the same complex, there are coworking offices (Regus/WeWork type) with Thames views. I had applied for one — it was approved. But I didn’t take it. Too expensive. Since COVID, rents have jumped +30% minimum in this area.
A 2-bed at One Casson Square now rents for £3,000–4,500/month. In 2019, it was £2,200–3,000. The increase is brutal and shows no signs of stopping.
The millionaire exodus since April 2025
And here’s the paradox: while London becomes increasingly expensive, the ultra-wealthy are leaving.
Since the Labour Party came to power (July 2024) and especially since April 2025 — when the non-dom tax status was abolished — the UK has been losing millionaires at a record pace:
- 10,800 millionaires left the UK in 2024 — a +157% increase from 2023
- Since Labour, one millionaire leaves the country every 45 minutes
- 78 centi-millionaires (wealth > £100M) and 12 billionaires have departed
- Destinations: UAE, Switzerland, Italy, United States
- Estimated total: £66 billion in investable assets leaving the territory
The reason? The new tax regime requires any resident of more than 4 years to pay British tax on their worldwide income. And inheritance is taxed at 40% — one of the highest rates in the world. Rachel Reeves (the Chancellor) already had to soften some rules at Davos in January 2025.
The result: luxury buildings are emptying of their foreign owners. They remain owners but no longer live there. Flats are rented out or left empty. The city is becoming a vault for absent investors.
For an entrepreneur like me who lives and works here daily, it’s both an opportunity (less local competition) and a warning: London remains attractive for those who create value. But it’s no longer the tax haven it once was.
Real differences between France and UK in daily life
| Aspect | France | United Kingdom |
|---|---|---|
| Salary | Net after deductions (simple) | Gross → PAYE → National Insurance → Net (complex) |
| Taxes | Annual declaration, deferred payment | Deducted at source in real time (PAYE) |
| Healthcare | Carte Vitale + top-up insurance | NHS free, no paperwork, all digital |
| Housing | Guarantor or permanent contract suffices | Credit check + references + 6 weeks deposit |
| Transport | Pass Navigo ~€86/month | Oyster/Contactless ~£180/month (zone 1-2) |
| Food | Markets, bakeries, small shops | Supermarkets (Tesco, Sainsbury’s, M&S), meal deals |
| Holiday | 5 weeks minimum + RTT | 28 days (including bank holidays) — that’s it |
| Dismissal | CDI nearly impossible to break | « At-will » in first 2 years |
| Retirement | Complex public system | Workplace pension mandatory + State Pension at 67 |
| Social life | Terrace, dinner at people’s homes, apéro | Pub. Pub. Pub. |
Why I stayed despite everything
London isn’t easy. It’s expensive (a 2-bed flat in zone 1 costs £2,500–4,000/month). It’s grey. The English are polite but not warm. The healthcare system is overloaded. Trains strike every three months.
But here’s why I’m still here in 2026:
- The entrepreneurial ecosystem. Starting a company in the UK takes 24 hours. Not 3 months of paperwork like in France. Companies House, one form, £12, done.
- English as a global lever. From London, I speak to the entire world. My clients, investors, partners — everything is in English, the language of business.
- No social judgment. In France, when you say « I have a startup, » people roll their eyes. In London, they ask what you’re building.
- Diversity. 300 languages spoken in London. Everyone comes from elsewhere. You’re never « the foreigner » here.
- Pragmatism. The English don’t bother with theory. « Does it work? Ship it. » That suits me.
FAQ — Frequently asked questions about leaving France for London
How much money do you need to move to London?
Budget minimum £5,000–8,000 for the first months: housing deposit (6 weeks’ rent), first month, basic furniture, transport. Without guaranteed employment, double this budget.
Do you need to speak English fluently?
To work in tech, finance, or startups: yes. For daily life: functional English suffices. London is so international you’ll always find someone who speaks French.
Is the NHS really free?
Yes, but… Wait times can be long for specialists (3–6 months). A&E works well. Prescriptions are £9.90 each (free in some cases). Many people get private insurance (BUPA, Vitality) to skip the queue.
Can you still move to London after Brexit?
Yes, but you need a visa. The most common: Skilled Worker Visa (minimum salary £38,700/year in 2026). There’s also the Global Talent Visa (tech, arts, sciences), Scale-up Visa, and the Innovator Founder visa for entrepreneurs.
Which neighbourhood should a French person choose?
Depends on your budget and lifestyle. South Kensington to stay in the French bubble. Shoreditch/Hackney for tech and creativity. Southbank for prestige and centrality. Clapham/Battersea for good value. Angel/Islington for a compromise between everything.
Are taxes lower than in France?
For salaries under £50,000: similar. Above that: yes, significantly lower. No insane employer charges, no staggering social contributions. The marginal rate hits 40% at £50,270 (vs 30% at ~€28,000 in France, then 41% at ~€82,000). The UK advantage shows most for entrepreneurs and high earners.
What I wish someone had told me
- Your French financial history is worth nothing here. Prepare to start from zero.
- Brexit made moving harder but not impossible. You just need a visa.
- The culture is more different than you think. It’s not « Paris but in English. » It’s another world.
- The pub is not optional. That’s where professional and personal relationships are built.
- London rewards those who dare. Entrepreneurial boldness is valued here in a way that doesn’t exist in France.
Alexandre Auger has lived in London (SE1) since 2019. He created francejetequitte.com in 2016 — the first blog about « leaving France. » Now a tech entrepreneur and founder of Komby (SaaS for businesses), he documents his journey from expat to CEO.
Last updated: June 2026.

French entrepreneur, expatriate since 2016. From radio to tech, from Bangkok to London via Hong Kong and Montreal. Founder of Komby (SaaS/AI). This blog tells the journey.