Compare taxes and see how much you save moving from France to UK
The hidden traps: France adds 9.7% CSG/CRDS on TOP of income tax (UK's NI is 8%), BUT France's quotient familial gives families massive tax breaks—a married couple with 2 kids can cut their tax by 40%+. UK has the 60% effective rate trap (£100K-£125K). At €80,000 single: France ~€26,000 total (tax + social), UK ~£21,500 (~€25,000). Remarkably similar! Choose France if: you have children (quotient familial), want 35-hour work weeks legally mandated, or prefer French healthcare. Choose UK if: you're single/childless, earn £50K-£100K (sweet spot), or want ISA tax shelters (France has nothing comparable).
Top Rate
Plus 9.7% CSG/CRDS
Additional Rate
Plus 8% National Insurance
At €80,000 single income:
That is €83/month back in your pocket!
| Income | FR Tax | UK Tax | Savings | 10-Year |
|---|---|---|---|---|
| €50,000 (single) | €14,500 (tax + CSG/CRDS) | £10,500 (~€12,300) | UK saves ~€2,200 | €22,000 |
| €80,000 (single) | €26,000 (tax + CSG/CRDS) | £21,500 (~€25,200) | UK saves ~€800 | €8,000 |
| €80,000 (married, 2 kids) | €15,500 (quotient familial!) | £21,500 (~€25,200) | France saves ~€9,700 | €97,000 |
| €100,000 (single) | €35,000 (tax + CSG/CRDS) | £30,000 (~€35,000) | Similar | ~€0 |
| €125,000 (single) | €47,000 (tax + CSG/CRDS) | £48,000 (~€56,000) 60% trap! | France saves ~€9,000 | €90,000 |
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Hiring Internationally? Deel Handles Compliance →Single person: France ~€26,000 (income tax + 9.7% CSG/CRDS), UK ~£21,500 (income tax + NI) = ~€25,000. Nearly identical! But with 2 kids and married: France drops to ~€15,500 due to quotient familial, while UK stays at €25,000. Family status completely changes the math.
Quotient familial divides household income by 'parts': married couple = 2 parts, each child = 0.5 parts. A married couple with 2 kids = 3 parts. €90,000 income becomes €30,000 per part for bracket purposes, dramatically lowering the effective rate. Savings can exceed €10,000/year for higher earners with multiple children.
UK: Earn £100,000-£125,140 and your £12,570 personal allowance disappears at £1 per £2 earned. Combined with 40% tax + 2% NI = effective 60% rate. France has no equivalent trap—rates rise smoothly through brackets. This makes France better for £100K-£150K earners.
CSG (9.2%) and CRDS (0.5%) are 'social contributions' deducted from all income—salaries, investments, rental income. Unlike income tax, they have no brackets: flat 9.7% from euro one. This is France's hidden burden that makes the real tax rate higher than income tax alone suggests.
France wins above ~€125,000 (roughly £107,000) because you've passed the UK's 60% trap zone. France's 45% + 9.7% = 54.7% is painful, but UK's 45% + 2% NI = 47% looks better only until you factor in the 60% trap already eaten into income below. For families, France's quotient familial extends the advantage even further.