UK tax, clearer when life crosses borders.
Practical UK tax, accounting and financial guidance for internationally mobile individuals, entrepreneurs and businesses, with particular expertise across the UK and France.
Tax rarely arrives as a neat accounting question.
Start with what you are actually trying to do. The technical rules come afterwards.
I am moving to, living in or leaving the UK
Residence, split years, foreign income and gains, FIG claims, non-residence, investments, pensions and wider cross-border planning.
I have tax or accounting issues spanning France and the UK
Bilingual help for individuals and businesses dealing with two systems, two sets of terminology and questions that rarely stop at one border.
I run a UK business or need to operate in the UK
Company structure, accounts, corporation tax, payroll, UK employees, compliance and practical support for overseas businesses entering the UK.
Use the numbers before you make the decision.
Our interactive tools help turn abstract tax rules into scenarios you can actually test.
UK Statutory Residence Test Tracker
Track UK days and workdays, model future travel and understand where residence thresholds may become relevant.
Explore the SRT Tracker →FIG + Pension Optimiser
Model whether a Foreign Income and Gains claim may be worthwhile, including interactions with allowances and pensions.
Run the FIG scenarios →Sole Trader vs Limited Company
Compare the tax effect of different business structures using realistic profit extraction and retention assumptions.
Compare the structures →Pension Annual Allowance Calculator
Work through threshold income, adjusted income, tapering and carry-forward when planning pension contributions.
Calculate your allowance →Cross-border questions need more than a translation.
They need an understanding of how the two systems interact. Our bilingual team works with French-speaking individuals and businesses navigating UK tax and accounting.
Detailed answers when the simple answer is not enough.
Long-form guides built around the questions we see in real tax and accounting work.
Start here in English
All English articles →Best Low-Tax Countries for UK Expats in 2026
Compare relocation destinations through a UK tax lens.
UK Split-Year Treatment: Rules and Common Pitfalls
A practical guide to the eight statutory split-year cases.
Paying HMRC: Pitfalls and Best Practices
How to make sure tax payments reach the right place.
À lire en français
Tous les articles →La fiscalité en Angleterre et les différences avec la France
Les grands repères pour comprendre le système britannique.
Pourquoi créer une société Limited ?
Structure, fiscalité et points d'attention pour les entrepreneurs.
Le traitement fiscal de l'assurance-vie en Angleterre
Ce qui change lorsqu'un contrat français rencontre le système UK.
Advice built around decisions, not paperwork.
Compliance matters. But the valuable question is usually what you should do before the return, transaction, move or business decision becomes irreversible.
Residence, foreign income, treaty questions and international structures are treated as connected issues.
UK tax and accounting explained clearly in English or French where language and terminology otherwise create friction.
Calculators and trackers are designed to improve the planning conversation, not decorate the website.
TaxTrends explains the issues. Our accountancy practice can help implement the practical next steps where appropriate.
Research, explain, calculate.
TaxTrends is our home for practical tax analysis, long-form guides and interactive planning tools.
Browse the knowledge base →Advise, file, implement.
Our London accountancy team supports individuals and businesses with tax compliance, accounts, payroll and advisory work.
About our practice →Where should I start?
Do you only work with French clients?
No. We advise UK and international individuals and businesses. French-speaking and UK–France work is an important specialism, not the only work we undertake.
Can you help if I am moving into or out of the UK?
Yes. UK residence, split-year treatment, foreign income and gains, non-residence and the tax consequences of international moves are major themes across our private-client work and TaxTrends content.
Are the calculators a substitute for tax advice?
No. They are planning tools designed to help you understand the mechanics, test assumptions and ask better questions before acting.
Do I need to come to a London office?
No. Our team is London based, but consultations and ongoing work can also be handled remotely.
Your tax situation probably does not fit neatly into a box.
Tell us what you are trying to do. We can then identify the tax, accounting or cross-border questions that actually matter.