Mieux Donner

Équipe Mieux Donner au Sommet de l'Altruisme Efficace

Philanthropy grounded in
intention and rigor

We help you build a giving strategy grounded in evidence, aligned with your values, whether you're giving personally, through your business , or as part of estate planning.

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Does this sound like you?

Three situations we encounter often

You're already giving, but you're not sure your donations are actually making a difference. You don't know if money is going where it truly helps, or mostly where organizations communicate well.
Your tax situation is complex (wealth tax, corporate philanthropy, estate planning) and you haven't yet integrated philanthropy into your overall planning.
You want to build a coherent approach over several years, not make giving decisions on the fly without a clear direction.
Our approach

Support across four key areas

01 · Clarify
Align your giving with your values

A structured first conversation to identify the causes that truly match who you are, your convictions, and the legacy you want to build, without imposing a predetermined framework.

02 · Select
Access the world's best research

We draw on the same evaluators as Anglo-Saxon family office philanthropists (GiveWell, Founders Pledge, LongView) and translate this research into concrete recommendations tailored to your profile.

03 · Optimize
Maximize impact at constant budget

Income tax, wealth tax, corporate giving, estate planning: we integrate tax strategy into your giving plan so every euro produces maximum impact, accounting for your personal situation.

04 · Track
Adjust annually with new data

Evaluations evolve, as does your situation. We provide annual check-ins to update your recommendations based on new research and changes in your personal or professional context.

Scientific foundation

Three principles that change everything

Effectiveness isn't ideology, it's measurement. Here's what guides our recommendations.

01
Impact varies by a factor of 100 between the best and good organizations. We translate research on intervention effectiveness into recommendations for your priority causes.
02
Rigorous evaluators (GiveWell, Giving Green, Founders Pledge) examine evidence, not size or reputation. Their research enables data-driven recommendations, not gut feeling.
03
Transparency about uncertainty builds trust. We never hide the limits of our data or the trade-offs between causes.
Tax optimization

Three powerful levers, often underused

France's tax system offers exceptionally favorable mechanisms for philanthropy. In some cases, a 50,000 euro gift costs you just 12,500 euros after tax deductions.

Income Tax
66%
reduction on gift amount

Deductible within 20% of taxable income. A gift produces significant tax savings without raising your budget.

15,000 euro gift → 9,900 euro tax reduction → net cost: 5,100 euro
Wealth Tax
75%
reduction (capped at 50,000 euro/year)

The most powerful lever for wealth tax holders. These gifts don't need reporting on your income tax return.

50,000 euro gift → 37,500 euro wealth tax reduction → net cost: 12,500 euro
Corporate Giving
60%
reduction on corporate tax

Capped at 0.5% of revenue. Particularly attractive for executives and entrepreneurs wanting to involve their business.

20,000 euro gift → 12,000 euro tax reduction → net cost: 8,000 euro
Tax deductibility isn't our primary recommendation criterion: we always prioritize organizational effectiveness. But in many cases, the two align well. We help you find the best balance for your situation. Learn more about tax reduction
Our track record

An engaged community, verifiable results

1 M€ directed to high-impact organizations (2025)
+500 people who've given through Mieux Donner
Featured in
Le Nouvel Obs Le Nouvel Économiste L'Express La Tribune
Transparency
Advisory without conflicts of interest

Our advisory service is independently funded by philanthropists distinct from those we advise. Their goal is to help others have greater impact with their giving, which lets us offer this service free of charge, with no connection to your giving decisions. Our recommendations are guided solely by impact, never by commercial interest.

We can also work alongside your wealth advisor, notary, or family office. Our expertise in impact evaluation complements their understanding of your financial situation.

Available formats

We adapt to your schedule

Discovery Call

30-45 minute initial conversation to understand your situation, priority causes, and specific questions.

In-Depth Consultation

Structured session to build a detailed recommendation together, including tax angles and organization selection.

Custom Support

Ongoing partnership: presentations to your team, integration into broader financial planning, annual strategy review.

"You can have 100 times more impact by giving to the best organizations. It's not about numbers, it's about compassion. Each gift affects real lives and families. If we help you choose high-impact organizations carefully, we're enabling you to help thousands more people. Every action matters when it's well-directed, and because we believe in lasting impact, we want you to make a real difference."

Romain Barbe Founder of Mieux Donner

Romain Barbe
Frequently Asked Questions
Do you charge for your service?
No. Mieux Donner is independently funded by philanthropists, so we offer our services free and without conflicts of interest.
Who is this for?
Anyone who gives, or plans to give, meaningfully and wants to ensure that money creates real impact. Individuals, executives, companies.
What if I already work with a wealth advisor?
We complement their work. Our impact assessment expertise strengthens their knowledge of your financial situation.
Questions? Reach Romain directly Book a time +33 7 61 36 51 80