If you're a high-net-worth individual considering living in, investing in, or relocating between France and Portugal, understanding how each country taxes wealth is essential. The France vs Portugal wealth tax landscape in 2025/2026 reveals two dramatically different philosophies — France imposes a targeted real estate wealth tax, while Portugal has no traditional wealth tax but applies a surcharge on high-value properties. This wealth tax comparison will help you navigate both systems with confidence.
Whether you're an expat weighing relocation options, a dual-property owner, or a financial planner advising international clients, this tax comparison France Portugal guide covers everything you need to know for the current tax year.
Understanding Wealth Tax: How France and Portugal Differ
Before diving into the specifics, it's important to understand that "wealth tax" means very different things in these two countries.
France replaced its broad-based wealth tax (Impôt de Solidarité sur la Fortune, or ISF) in 2018 with the Impôt sur la Fortune Immobilière (IFI) — a tax that applies exclusively to real estate assets. Financial investments, business assets, and other non-property wealth are entirely excluded.
Portugal, on the other hand, does not have a traditional wealth tax in name. However, it levies the Adicional ao Imposto Municipal sobre Imóveis (AIMI), sometimes called a "wealth surcharge" or "additional property tax." This applies to the combined taxable value of Portuguese real estate holdings above certain thresholds.
The core distinction is:
- France's IFI: A progressive wealth tax on worldwide real estate (for residents) or French real estate (for non-residents)
- Portugal's AIMI: A flat/tiered surcharge on Portuguese real estate only, applied on top of standard municipal property taxes
This fundamental difference shapes the entire wealth tax comparison between the two countries.
France's Wealth Tax (IFI) in 2025/2026: Rates, Thresholds, and Rules
France's Impôt sur la Fortune Immobilière is one of Europe's most significant property-focused wealth taxes. Here's how it works in the 2025/2026 tax year.
Who Is Subject to France's IFI?
- French tax residents: Taxed on their worldwide net real estate assets
- Non-residents: Taxed only on real estate assets located in France
- The tax applies to individuals and is assessed per household (fiscal household, or foyer fiscal)
IFI Taxable Base
The IFI applies to the net value of real estate assets, meaning you can deduct mortgage debt and certain qualifying liabilities directly linked to the properties. Taxable assets include:
- Directly owned residential and commercial property
- Real estate held through companies (SCI, SCPI, OPCI), proportional to real estate holdings
- Real estate investment fund shares (to the extent they represent property assets)
- Property rights (usufruct, rights of use)
Key exemptions include:
- Professional/business-use real estate (under certain conditions)
- Forestry and rural land (partial exemptions)
- A 30% discount on the value of your principal residence
IFI Tax Rates for 2025/2026
The IFI uses a progressive rate structure with the following brackets. The tax is triggered when net real estate assets exceed €1,300,000, but the rates apply starting from €800,000:
| Net Real Estate Value | Tax Rate |
|---|---|
| Up to €800,000 | 0% |
| €800,001 – €1,300,000 | 0.50% |
| €1,300,001 – €2,570,000 | 0.70% |
| €2,570,001 – €5,000,000 | 1.00% |
| €5,000,001 – €10,000,000 | 1.25% |
| Over €10,000,000 | 1.50% |
Important note: If your net real estate value is between €1,300,000 and approximately €1,400,000, a smoothing mechanism (décote) reduces the initial tax bill to avoid a cliff effect at the threshold.
Practical Example: France IFI
Suppose you are a French tax resident with worldwide real estate assets valued at €3,000,000 net (after deducting the 30% principal residence abatement and mortgage debt):
- First €800,000: €0
- €800,001 – €1,300,000 (€500,000 × 0.50%): €2,500
- €1,300,001 – €2,570,000 (€1,270,000 × 0.70%): €8,890
- €2,570,001 – €3,000,000 (€430,000 × 1.00%): €4,300
Total IFI: €15,690
Use our France Wealth Tax Calculator to estimate your IFI liability based on your specific real estate portfolio.
IFI Filing Deadline
The IFI is declared alongside your annual income tax return, typically due in May–June of each year (exact dates depend on your department and whether you file online).
Portugal's Wealth Surcharge (AIMI) in 2025/2026: Rates, Thresholds, and Rules
Portugal's approach to wealth taxation is more restrained. The AIMI, introduced in 2017, functions as an additional layer on top of the regular Imposto Municipal sobre Imóveis (IMI — Portugal's standard property tax).
Who Is Subject to Portugal's AIMI?
- All owners of Portuguese real estate — both residents and non-residents — whose aggregate taxable property value (Valor Patrimonial Tributário, or VPT) exceeds the exemption threshold
- The AIMI applies to individuals, companies, and undivided inheritances
- For individual owners, a personal exemption of €600,000 applies
- For married couples or civil partners who elect joint taxation, the combined exemption is €1,200,000
AIMI Taxable Base
The AIMI is calculated on the sum of the VPT (tax-assessed value) of all Portuguese properties owned, minus the applicable exemption. Key points:
- It applies to residential and building land — commercial properties are excluded
- The VPT is determined by Portugal's tax authority and is often significantly below market value
- Mortgages and debts cannot be deducted from the taxable base
AIMI Tax Rates for 2025/2026
The rates depend on whether the owner is an individual or a company:
For individuals:
| Taxable VPT (above €600,000 exemption) | AIMI Rate |
|---|---|
| Up to €1,000,000 | 0.7% |
| Over €1,000,000 | 1.0% |
For married couples/civil partners (joint election):
| Taxable VPT (above €1,200,000 exemption) | AIMI Rate |
|---|---|
| Up to €1,000,000 | 0.7% |
| Over €1,000,000 | 1.0% |
For companies:
| Ownership Type | AIMI Rate |
|---|---|
| General corporate ownership | 0.4% |
| Properties held by entities in blacklisted jurisdictions | 7.5% |
Note: Companies do not benefit from the €600,000 exemption. The 0.4% rate applies to the entire VPT.
Practical Example: Portugal AIMI
Suppose you are an individual owning Portuguese residential properties with a combined VPT of €2,000,000:
- Exemption: €600,000
- Taxable base: €2,000,000 – €600,000 = €1,400,000
- First €1,000,000 × 0.7%: €7,000
- Remaining €400,000 × 1.0%: €4,000
Total AIMI: €11,000
Remember, this is in addition to the regular IMI (typically 0.3%–0.45% for urban properties), which would add approximately €6,000–€9,000 on the full €2,000,000 VPT.
Use our Portugal Wealth Tax Calculator to calculate your AIMI and total Portuguese property tax liability.
AIMI Payment Deadline
The AIMI is typically assessed in June each year, with payment due in September. For amounts exceeding €250, payment can be split into two installments.
Side-by-Side Comparison: France IFI vs Portugal AIMI
Here is a direct tax comparison France Portugal for wealth taxes in 2025/2026:
| Feature | France (IFI) | Portugal (AIMI) |
|---|---|---|
| Type of tax | Progressive real estate wealth tax | Additional property surcharge |
| Taxable assets | All real estate (worldwide for residents) | Portuguese residential property & land only |
| Financial assets included? | No | No |
| Exemption threshold | €1,300,000 (rates from €800,000) | €600,000 per individual |
| Top rate | 1.50% | 1.0% (individuals) |
| Debt deductible? | Yes (property-linked debts) | No |
| Principal residence discount | 30% abatement | No specific abatement |
| Applies to non-residents? | Yes (French property only) | Yes (Portuguese property only) |
| Valuation basis | Market value | Tax-assessed value (VPT) |
| Rate structure | 6 progressive brackets | 2 tiers |
| Filing | With annual income tax return | Automatic assessment by tax authority |
Key Takeaways from the Comparison
- France taxes more aggressively at the top: With a 1.50% rate on assets above €10 million, France's IFI can be significantly more expensive for ultra-high-net-worth individuals.
- Portugal's VPT advantage: Because AIMI is based on tax-assessed values (often 30–60% below market value), the effective rate is lower than it appears on paper.
- France allows debt deductions: This is a major planning advantage, especially for leveraged property portfolios.
- Portugal is simpler: No declaration required — the tax authority calculates AIMI automatically.
- Worldwide vs domestic scope: French residents face IFI on global real estate; Portugal's AIMI only ever applies to Portuguese property.
Double Taxation and Cross-Border Considerations
For individuals who own property in both countries, understanding the France-Portugal double taxation treaty is critical.
Real Estate Taxation Under the Treaty
The France-Portugal double taxation agreement generally follows OECD model principles:
- Real estate income and gains are taxable in the country where the property is located (the "situs" rule)
- Wealth taxes on real estate also follow the situs principle — each country can tax property located within its borders
- France grants a tax credit for foreign taxes paid on non-French real estate, which can offset IFI liability in some cases
Practical Implications
If you are a French tax resident who owns property in both France and Portugal:
- Your Portuguese property's market value counts toward your IFI taxable base in France
- You will also owe AIMI in Portugal on Portuguese property above the threshold
- You may claim a credit in France for the AIMI paid, but the mechanics are complex and depend on treaty interpretation
If you are a Portuguese tax resident who owns property in both countries:
- You owe IFI in France on your French property (as a non-resident)
- You owe AIMI in Portugal on your Portuguese property
- No double taxation issue typically arises because each country only taxes its own real estate
Pro tip: Always work with a cross-border tax advisor when you hold real estate in multiple jurisdictions. The interaction between IFI, AIMI, and the treaty can create planning opportunities — or unexpected liabilities.
Common Mistakes and Misconceptions
When comparing France vs Portugal wealth tax obligations, taxpayers frequently stumble on these points:
Mistake #1: Assuming Portugal Has No Wealth Tax
While Portugal technically doesn't have a "wealth tax," the AIMI functions as one for property owners. Ignoring it when budgeting for Portuguese property ownership is a costly oversight.
Mistake #2: Using Market Value for Portuguese AIMI
The AIMI is calculated on the VPT, not market value. A property worth €1,000,000 on the market might have a VPT of €500,000–€700,000. Always check the official VPT on your caderneta predial (property registration document).
Mistake #3: Forgetting the 30% Principal Residence Abatement in France
French residents often overestimate their IFI liability by forgetting the 30% discount applied to their main home. This can keep some taxpayers below the €1,300,000 threshold entirely.
Mistake #4: Ignoring Company Ownership Structures
Holding property through a company changes the AIMI calculation significantly (0.4% rate, no exemption). In France, property held through companies is "looked through" for IFI purposes. The structure you choose matters enormously.
Mistake #5: Overlooking the IFI Capping Mechanism
France has a capping rule (plafonnement) that limits total IFI plus income tax to 75% of your income. This can significantly reduce IFI for taxpayers with modest income but high-value real estate. Many taxpayers are unaware this mechanism exists.
Who Pays More: A Scenario-Based Comparison
Let's compare the wealth tax burden in three scenarios for the 2025/2026 tax year.
Scenario 1: €2,000,000 in Real Estate
France (IFI): Net real estate of €2,000,000 after deductions
- Tax: €0 + €2,500 + €4,900 = €7,400
Portugal (AIMI): VPT of €2,000,000 (individual)
- Tax: €7,000 + €4,000 = €11,000
In this scenario, France is cheaper — but remember Portugal's VPT is usually well below market value. If the €2 million is market value, the VPT might be ~€1.3 million, yielding AIMI of only €4,900.
Scenario 2: €5,000,000 in Real Estate
France (IFI): Net real estate of €5,000,000
- Tax: €0 + €2,500 + €8,890 + €24,300 = €35,690
Portugal (AIMI): VPT of €5,000,000 (individual)
- Tax: €7,000 + €34,000 = €41,000
At this level, both countries impose significant taxes, but France's debt deductibility could lower the effective burden substantially if properties are mortgaged.
Scenario 3: €15,000,000 in Real Estate
France (IFI): Net real estate of €15,000,000
- Tax: €0 + €2,500 + €8,890 + €24,300 + €62,500 + €75,000 = €173,190
Portugal (AIMI): VPT of €15,000,000 (individual)
- Tax: €7,000 + €134,000 = €141,000
At the ultra-high end, France's progressive rates make it significantly more expensive than Portugal's capped 1% rate.
Use the France Wealth Tax Calculator and the Portugal Wealth Tax Calculator side by side to model your own situation.
Frequently Asked Questions
Does Portugal have a wealth tax?
Portugal does not have a traditional wealth tax, but it levies the AIMI — an additional property tax surcharge on residential property and building land valued above €600,000. It functions similarly to a wealth tax for real estate owners.
Is France's wealth tax only on real estate?
Yes. Since 2018, France's IFI applies exclusively to real estate assets. Financial investments, business assets, luxury goods, and other forms of wealth are not included.
Can I deduct mortgage debt from my wealth tax base?
In France, yes — debts directly linked to taxable real estate (mortgages, renovation loans) reduce your IFI taxable base. In Portugal, no — AIMI is calculated on the gross VPT with no debt deductions.
Do non-residents pay wealth tax in France and Portugal?
Yes. Non-residents pay IFI on French real estate and AIMI on Portuguese real estate, subject to the same thresholds and rates as residents (though French non-residents are only taxed on French property).
How do I calculate my total tax liability including income tax?
Wealth taxes interact with income taxes, especially in France where the capping mechanism limits combined IFI and income tax to 75% of income. Use our France Income Tax Calculator and Portugal Income Tax Calculator alongside the wealth tax calculators for a complete picture.
Conclusion: Making an Informed Decision
The France vs Portugal wealth tax comparison reveals two distinct systems with different strengths and weaknesses:
- France offers higher exemptions, debt deductibility, and a principal residence abatement — but imposes steep progressive rates that hit ultra-wealthy property owners hard (up to 1.5%).
- Portugal has a simpler, lower-rate system that benefits from below-market-value assessments — but offers no debt deductions and no principal residence discount.
For property portfolios up to approximately €3–4 million (market value), Portugal's effective burden is often lower thanks to the VPT discount. At the very top end (€10 million+), France's progressive rates can exceed Portugal's, making Portugal relatively more attractive for ultra-high-net-worth real estate holders.
However, wealth tax is only one piece of the puzzle. Consider income tax, capital gains tax, inheritance tax, and lifestyle factors before making any relocation decisions. Use our calculators to model your complete tax position:
- France Wealth Tax Calculator
- Portugal Wealth Tax Calculator
- France Income Tax Calculator
- Portugal Income Tax Calculator
This article is for informational purposes only and does not constitute tax advice. Tax laws change frequently; consult a qualified tax professional for advice specific to your situation.