ClarofiscCROSS-BORDER FINANCIAL TOOLS, DONE PROPERLY

Cross-border finances, worked out properly.

Clarofisc builds focused calculation tools for people navigating tax and finance across two countries — starting with UK–France rental income, with more on the way.

Why is cross-border tax so complicated? →

Try the property calculator

Our tools

Each tool is built around one specific cross-border situation, done thoroughly rather than broadly.

UK–France

Cross-border tax tools for UK-France rental, pensions, and investment income.

Try it →

Aviation

Tax tools built for pilots and cabin crew, from someone who knows the industry.

Coming soon

Expats in France

Specific, well-defined tools for common expat filing obligations — not general advice.

Coming soon
See all our tools →

Why Clarofisc

Built for one job

Each tool covers one specific cross-border situation in depth, not a generic calculator stretched thin.

Shows the real numbers

Not just an estimate — the actual form names and box numbers your figures go into.

Not advice, and honest about it

A calculation aid, clearly labelled as such. You stay in control of your own filing.

Clarofisc tools are calculation aids, not tax or financial advice. Always verify figures before filing.

© 2026 Clarofisc. All rights reserved. · Contact