Tax optimization — how much will you save?
A precise calculation based on your work canton and your French tax bracket
How does it work?
Answer the questions below, then copy-paste each box and amount from the recap onto impots.gouv.fr. Nothing is sent to any administration: you stay in control from start to finish.
What we’ll ask you
- Which Swiss canton do you work in?
- What is your French marginal tax bracket (TMI)?
- What is your main goal?
- How much do you want to pay into a PER this year?
- Over how many years do you plan to repeat this payment?
- What type of donation?
- Planned donation amount this year?
- Your household’s annual net taxable income (to check the 20% cap)?
Frequently asked questions
What documents do you need to prepare "Tax optimization — how much will you save?"?
Have on hand: 2025 tax notice on 2024 income, or the impots.gouv.fr simulator. Every question in the flow tells you exactly where to find the requested amount on these documents.
How long does it take to prepare?
The flow has up to 9 questions (often fewer depending on your situation) — allow 2 to 5 minutes if you have your documents handy.
Is "Tax optimization — how much will you save?" free on CtrlC-CtrlV?
The preview is free. The full calculation is part of the Optimization offer: €2.90 for 30 days of access to every optimization calculator on the site, no subscription.
Is my information sent to the administration?
No. CtrlC-CtrlV only prepares your recap: you copy each box yourself onto impots.gouv.fr. Nothing is sent to any administration, and your answers stay in your browser.