Yet a discreet tax rule can, in rare cases, erase it.
French inheritance law is famously tough on anything that is not passed directly to children or a spouse. Brothers and sisters, in particular, are often hit with hefty tax charges. Hidden in the tax code, though, is a specific exemption that can completely remove inheritance tax between siblings, provided strict conditions are met.
How French inheritance tax normally hits siblings
France taxes inheritances based on two key elements: the value of what you receive, and how closely you were related to the person who died. The further you are on the family tree, the harsher the tax.
Before the rate applies, each heir benefits from a personal allowance. Anything above that allowance is taxed using a progressive scale. Here is how it looks for the main categories of heirs:
| Relationship | Tax-free allowance | Main tax rate(s) above allowance |
|---|---|---|
| Children and parents | €100,000 | 5% to 45% depending on amount inherited |
| Brothers and sisters | €15,932 | 35% up to €24,430, then 45% above |
| Nephews and nieces | €7,967 | 55% flat rate |
| Other relatives and non-relatives | €1,594 | 60% flat rate |
This structure means a brother or sister inheriting a flat, savings or family home can quickly find a large portion swallowed by tax. The gap between what children pay and what siblings pay can be dramatic.
For siblings, inheritance tax in France can jump to 45% on the taxable share once the modest allowance is exhausted.
The obscure rule that can exempt siblings entirely
Buried in the French General Tax Code is Article 796-0 ter, a short but powerful provision aimed specifically at brothers and sisters. Under this article, a brother or sister can be totally exempt from inheritance tax on what they receive from a deceased sibling.
This is not a broad, flexible tax break. It applies only where three strict conditions are all met at the same time.
The three cumulative conditions to qualify
For a sibling to benefit from full exemption on inheritance tax in France, these requirements must be satisfied:
- Shared home for at least five years: The heir must have lived in the same home as the deceased brother or sister on a continuous basis during the five years before death.
- Single at the time of death: The heir must be unmarried, widowed, divorced or legally separated when the sibling dies.
- Age or disability condition: The heir must be over 50 years old, or affected by a disability that prevents any professional activity.
Only siblings who lived together, remained single and are either over 50 or unable to work can hope for a complete inheritance tax exemption.
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This rule, in force since 2007, was designed to protect vulnerable siblings who often spend their lives in the same home, sometimes caring for each other. Without it, some surviving brothers or sisters would be forced to sell the property simply to pay the tax bill.
Why so few people use this sibling exemption
The measure frequently goes unused, not because it is ineffective, but because the conditions are narrow and quite technical.
Many siblings do not live together for five continuous years, especially in their later life. Others may be in a couple, which disqualifies them instantly. And the age or disability requirement filters out younger heirs who might otherwise be exposed to high inheritance tax.
On top of that, the rule is not widely publicised. People often hear generic advice about “French inheritance being expensive” without learning that, for a specific profile of siblings, the bill can actually be zero.
Other French inheritance tax exemptions that matter
This sibling loophole is part of a broader patchwork of exceptions designed to ease the load in specific circumstances. Several other categories enjoy more generous treatment.
Surviving spouse or civil partner
Where the heir is a surviving spouse or a partner in a civil union (PACS), the French tax code grants a complete exemption from inheritance tax, regardless of the size of the estate.
Spouses and PACS partners inherit free of French inheritance tax, even on large estates.
People with disabilities
A separate, substantial allowance exists for heirs with a recognised disability. They can benefit from an additional tax-free amount of €159,325, which stacks on top of the usual allowance linked to their family relationship.
This can dramatically cut or even eliminate the tax bill for a disabled child, sibling or other relative, especially in modest estates.
Cash gifts within the family
France also encourages early transmission of wealth through certain tax-free cash gifts. Under conditions of age and timing, a parent or grandparent can make cash gifts of up to €100,000 per donor, and up to €300,000 per beneficiary across multiple donors, without immediate tax.
While these schemes usually relate to lifetime gifts rather than inheritance at death, they can be integrated into a broader family strategy to reduce what will be taxed later.
Business and agricultural assets
For business owners and farmers, French law offers a range of partial or full exemptions, provided the activity is maintained and specific commitments are respected. The so-called “Dutreil” regime can drastically lower inheritance tax on a family company when conditions are respected.
What this means for siblings living under one roof
The sibling exemption has very concrete consequences in everyday life. Consider a 55-year-old woman who has lived with her older brother for years in the family apartment. She is single, and he was the main owner of the property.
If he dies, leaving her the flat worth €300,000, the standard regime would give her a surprisingly low tax-free allowance (€15,932) and then apply up to 45% tax. The tax bill could reach tens of thousands of euros.
Under Article 796-0 ter, if she lived with him continuously for the five years prior to his death, is still single, and is over 50, the entire inheritance escapes French inheritance tax. She can stay in the home without needing to sell or borrow to pay the tax office.
For ageing siblings sharing a home, this exemption can be the difference between keeping the roof and being forced to sell it.
Key notions worth understanding
Two notions are often misunderstood by heirs:
- “Domiciled with the deceased”: This refers to having your main home at the same address as the deceased, usually backed by tax statements, utility bills and official records. A casual stay or occasional presence will not qualify.
- “Continuous” residence: The five-year period must not be broken by moving out. Short absences for holidays or hospital stays are generally tolerated, but a change of main residence can break the condition.
Another nuance: being “single” in tax terms means your legal status, not your love life. You can be in a relationship without being married or in a PACS and still technically count as single, as long as there is no formal union.
Practical scenarios and planning angles
Families with ageing siblings living together sometimes adjust their planning once they learn about this exemption. In certain cases, parents might decide to leave the shared home to the child who lives there with a sibling, anticipating that one day the surviving brother or sister could inherit from them under much better conditions.
There are also risks. If the surviving sibling moves out before the five-year mark or decides to marry late in life, the exemption could be lost. Any planning based on this rule needs to consider life events that may change eligibility.
For Anglo-French families, the situation can be even more complex. A British citizen living in France with a French sibling could, in theory, benefit from the exemption, but cross-border tax treaties and UK inheritance tax may also come into play. That is where tailored advice from a notaire and an international tax adviser becomes crucial.
Ultimately, this little-known French rule does not fix the broader debate around high inheritance tax for siblings, nephews or nieces. It does, though, offer a lifeline to a small but vulnerable group: older or disabled brothers and sisters sharing the same home, who could otherwise lose it under the weight of the tax bill.
Originally posted 2026-03-05 01:48:35.