“Alexis, I feel like I work six months of the year purely to pay my taxes. Is there a legal way to regain control without taking risks with the tax authorities?”

This very question is the starting point of most of the engagements I take on. In France, the tax burden on income is among the highest in the world, yet the General Tax Code is paradoxically packed with levers designed to support the economy, property or culture in exchange for a reduction in your tax bill.

At Balmont Conseil, we practise rigorous and secure tax optimisation. As a wealth management advisory expert, equipped with a wealth-focused AI, my mission is to turn the tax you endure into tax you choose. Using artificial intelligence, we analyse your marginal tax rate (TMI) and simulate the best wealth strategies to convert your taxes into capital.

What does income tax optimisation involve?

Tax optimisation means using the full range of legal mechanisms (reductions, deductions, tax credits) to minimise a household's tax burden. Unlike tax fraud (concealing income) or tax evasion (illegally transferring assets), optimisation relies on the intent of the legislator.

Distinguishing the mechanisms: Deduction, Reduction and Tax Credit

1. The Tax Deduction: The ally of high earners

The deduction applies upstream, at the level of your gross overall income. It reduces the base on which the tax will be calculated.

  • How it works: If you earn €50,000 and deduct €5,000 (via a PER, for instance), you will only be taxed on €45,000.
  • The leverage effect (TMI): Your Marginal Tax Rate is crucial. At a TMI of 41%, a €1,000 deduction saves €410. At a TMI of 11%, it saves only €110.
  • Strategy: The more heavily you are taxed, the more powerful the deduction.

  • 2. The Tax Reduction: The fixed "discount"

    Unlike the deduction, the reduction applies downstream. Your theoretical tax is calculated, then the reduction is subtracted.

  • How it works: If your tax comes to €4,000 and you qualify for a €2,500 Pinel reduction, you pay only €1,500.
  • Tax fairness: A €1,000 reduction has the same value for a taxpayer at 11% as for a taxpayer at 45%.
  • The limit: A reduction cannot make your tax negative. If the tax is €1,000 for €1,500 of reduction, the tax falls to €0, but the remaining €500 is lost.

  • 3. The Tax Credit: The holy grail of repayment

    The tax credit is the most protective tool, because it is refundable.

  • How it works: It functions like a reduction, but with a refund option.
  • The winning scenario: If you are non-taxable but hold €1,200 of tax credit (e.g. childcare), the Public Treasury sends you a cheque for €1,200.
  • Common uses: Employing a home-based worker, childcare costs, or energy-transition works.
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    The levers of optimisation: An overview of the solutions

    There are three broad families of levers for reducing your taxes in a structural way.

    Comparing the strategies: Which solution for which profile?

    Not all methods are equal. Balmont Conseil's AI makes it possible to tailor the approach to your situation:

    Taxpayer profile Optimisation priority Recommended scheme
    TMI 11% to 30% Direct reductions and credits Home employment, Donations, Pinel (if already committed)
    TMI 30% to 41% Deductions and capitalisation Retirement Savings Plan (PER), Property deficit
    TMI 41% to 45% Large-scale write-off and Transmission Historic Monuments, Girardin, Property dismemberment (démembrement)

    Putting a tailored strategy in place: The Balmont methodology

    Successful optimisation is not simply a matter of buying a "tax product". It follows structured steps of tax accounting and engineering:

    Tax Return Audit

    Analysis of income, automatic tax allowances and deductible maintenance payments.

    Calculating the Marginal Tax Rate (TMI)

    This is the pivot of the decision. There is no point using a PER if you are not at least in the 30% band.

    Choice of investment wrappers

    Trade-off between liquid investments (Equity Savings Plan) and buy-to-let property with a rental-commitment undertaking.

    Investment monitoring

    Annual monitoring to adapt to legislative changes.

    The legal limits and the risks to avoid

    Income tax optimisation must be carried out ethically and rigorously so as not to cross the red line.

    The cap on tax loopholes

    Most tax reductions and credits are capped at an overall ceiling of €10,000 per year (raised to €18,000 for Girardin and Cinema). Exceeding this threshold makes your investments tax-inefficient.

    Abuse of tax law (abus de droit)

    The tax authorities penalise arrangements whose sole purpose is to avoid tax without any economic substance. For example, a fictitious gift or a property dismemberment (démembrement) with no genuine intent to give may be reclassified.

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    AI-augmented wealth engineering: your tax shield

    At Balmont Conseil, we use AI for investment monitoring. Our algorithms continuously scan changes in property taxation and socially responsible investment opportunities.

    We do not merely help you complete your tax return. We design a comprehensive wealth strategy that includes the taxation of gifts and the protection of assets through capitalisation contracts or complex corporate structures.

    FAQ: 20 key questions on tax optimisation

    The fundamentals of optimisation

    What is income tax optimisation?


    What is the difference between optimisation, evasion and fraud?


    From what level of tax is it worth taking an interest?


    What is the difference between a reduction and a deduction?


    What is the Marginal Tax Rate (TMI)?

    Property schemes

    Can the property deficit be combined with the cap on tax loopholes?


    Why invest in LMNP if it is not direct tax relief?


    Is the Pinel Law still worthwhile in 2026?


    What is the Malraux Law?


    Can you reduce your taxes with your main residence?

    Financial investments and the PER

    Why is the PER the favourite investment of senior professionals?


    Can a PER be released before retirement?


    What is IR-PME investment?


    Should you favour the PEA to reduce your taxes?


    What is Industrial Girardin?

    Advanced strategies and Security

    How does property dismemberment work for tax purposes?


    Is it possible to reduce tax on dividends?


    What is the risk of an "abuse of tax law"?


    When should you begin your tax optimisation?

    Take control of your taxation

    Income tax optimisation is not a privilege reserved for insiders; it is an essential component of sound wealth management. In 2026, the complexity of the law calls for a scientific and personalised approach.

    Do not leave your marginal tax rate to chance any longer. By combining the human expertise of our wealth management advisers with the precision of our AI, you secure your future while financing the economy of tomorrow.

    Your wealth is an architecture; we are its guardians.

    Alexis Sagnier

    With more than 17 years of expertise in financial engineering, Alexis Sagnier supports business leaders and expatriates in securing their cross-border interests.

    Sources & References:

    • General Tax Code (CGI): Article 155 B.
    • Official Public Finance Bulletin (BOFiP): Inbound expatriate regime (BOI-RSA-GEO-40).
    • 2025 Finance Act: Analysis of recent developments.
    • Case law on inbound expatriation: Rulings of the Conseil d'État on reference remuneration.
    • ANACOFI Member Handbook: Standards for wealth engineering advice.

    Ready to structure your future?

    Whether you are in Lyon or on the other side of the world, Alexis Sagnier and the Balmont Conseil team are here to listen.