Guadeloupe, Saint Martin… two islands, two tax systems, two strategies. The no-holds-barred guide for savvy investors.
When it comes to real estate investment in France’s overseas territories, people often focus on generic schemes or preconceived notions rooted in outdated tax systems. But the reality on the ground is far richer—and far more complex—than most commentators suggest. At Apromeos, we operate at the heart of these markets. Here’s what our clients discover—often to their surprise—when they compare Guadeloupe and Saint Martin.
Guadeloupe: an overseas department with the CIOP investment program
Guadeloupe is a full-fledged French department. It fully applies the General Tax Code and benefits from the overseas tax exemption schemes provided by the French government. Among these, the CIOP—the Overseas Productive Tax Credit—defined by Article 244 quater W of the General Tax Code, is now the central mechanism for investors wishing to structure a new rental project on the island.
What many people don’t realize is that the Guadeloupean housing market is caught between strong local residential demand and a supply constrained by high land costs—particularly on Grande-Terre, in the Pointe-à-Pitre and Gosier areas. Prices per square meter in coastal areas have risen significantly in recent years, pushing prices in some areas to levels comparable to those of mid-sized metropolitan markets.
The 244 quater W (CIOP) program: How does it work?
The CIOP is the standard scheme for new rental property investments in Guadeloupe. Its structure is radically different from previous schemes: it is a direct tax credit granted to a corporation subject to corporate income tax—most often a corporate real estate investment company (SCI) established specifically for the transaction.
The CIOP allows a corporation subject to corporate income tax to invest in a new off-plan property in Guadeloupe and to directly claim a tax credit calculated based on the property’s cost price. This credit is paid out in installments as construction progresses.
Payment schedule: 70% upon completion of the foundation · 20% upon completion of the roof structure · 10% upon delivery. The tax base is calculated as the sum of the living area and the veranda (max. 14 m²) multiplied by the annual cap (€3,139 excl. tax per m² in 2025).
Specifically, for an apartment purchased for €210,000 through a corporate real estate investment company (SCI) subject to corporate income tax, the tax credit available is approximately €73,500, bringing the actual cost of the transaction down to around €136,500—while retaining a new property intended for rental in a booming market.
The condition is strict: the property must be rented unfurnished, as a primary residence, for at least five years, and must comply with rent and tenant income limits. The property must be put up for rent within 12 months of the DAT (Declaration of Completion of Work).
Notary fees for new construction in Guadeloupe: a major advantage
This is one of the least known facts about the Guadeloupe real estate market, and one of the most critical factors in calculating profitability: when purchasing a new property in Guadeloupe, closing costs (commonly referred to as “notary fees”) amount to approximately 2.5% of the sale price.
This difference of nearly 7.5 percentage points translates to a significantly higher upfront cost in Saint Martin. For a property priced at €300,000, that amounts to a difference of more than €22,000 right from the start—a factor that many investors discover too late in the process.
Property Tax in Guadeloupe: Overlooked Deductions
Property tax in Guadeloupe follows the rules of the General Tax Code (CGI), but it has one distinctive feature: new buildings may be eligible for a temporary exemption from property tax on developed properties, depending on the location of the development and the nature of the project. Local ordinances may also adjust rates by zone. These provisions, rarely mentioned in sales pitches, can result in savings of several thousand euros during the first few years of ownership.
Saint Martin: one island, two countries, two radically different approaches
Saint Martin has been an overseas collectivity (COM) since 2007, following its separation from Guadeloupe. It has its own territorial assembly and—crucially—its own General Tax Code (CGISM). The French part (north) and the Dutch part, Sint Maarten (south), coexist on an 88-square-kilometer island, with no physical border between them.
This unique global configuration creates a two-tier real estate market, whose rules are entirely distinct from those of metropolitan France and the French overseas departments.
A One-of-a-Kind Tax Code: What It Really Means
This is the least known—and most significant—fact: Saint Martin has its own tax code, separate from the French General Tax Code (CGI). This fiscal autonomy results in very different rules for buyers:
| Setting | Guadeloupe (French Overseas Department) | Saint Martin (COM) |
|---|---|---|
| National tax exemption scheme | CIOP — Art. 244 quater W eligible | Not applicable (separate tax regime) |
| Notary fees (new) | ~2,5% | ~10% (COM transfer tax) |
| Sales tax on construction | 8.5% (reduced rate for French overseas departments) | Local TGCA — specific rate |
| Income tax | French General Tax Code | Local Tax System — Reduced Income Tax for Residents |
| Property tax | State + County Council Rates | Rate set by the local government |
| Local real estate tax breaks | No — national schemes (CIOP) | Yes — Section 199-k of the CGISM |
Local tax exemption: Article 199 undecies D of the General Tax Code
What few investors know: Saint Martin has created its own tax exemption scheme, set forth in Article 199 undecies D of its General Tax Code. This local mechanism, in effect since 2015 and extended through December 31, 2030, is reserved for tax residents of the Collectivité.
The program offers a tax credit of 25% to 30% of the cost of a new home purchased or built in Saint Martin, for taxpayers who are tax residents of the island.
Eligibility requirements: Be a tax resident of Saint Martin (or derive more than 75% of your worldwide taxable income from there), purchase or construct a new home that has been duly authorized by a building permit, and use it as your primary residence for at least five years.
This is a direct reduction in the local tax owed to the Collectivité—a reversal of the approach taken on the mainland, where people seek to reduce their national taxes through overseas investments. Here, it is the island’s residents who benefit from a local tax break to purchase a home or build their wealth locally. The reduction is spread over 10 years.
In 2025, the local government also introduced specific measures to free up agricultural land, encourage the construction of affordable housing, and provide conditional exemptions from capital gains taxes—a sign of an increasingly structured and responsive local housing policy.
An island divided into two distinct customer groups
The Saint-Martin market is the only one in the world that operates under two distinct legal and tax regimes within a single contiguous territory. This reality automatically divides demand into two radically different segments.
The northern part attracts French and European clients looking to establish a primary residence in a tax-friendly environment. Tax residency in Saint Martin allows individuals, subject to residency requirements, to benefit from the local reduced income tax rate. This is a compelling factor for high-income earners: entrepreneurs, professionals, and affluent retirees.
Luxury residential properties, gated communities, and villas with ocean views are the most dynamic segments on the French side. Buyers under the 199 undecies D program are typically new residents who wish to both settle in and optimize their local tax situation.
The southern, Dutch part of the island attracts a truly international clientele: North Americans, Canadians, Caribbean investors, and members of the diaspora with high purchasing power. Princess Juliana International Airport and the world-class hotel infrastructure make it the island’s economic hub.
Transactions there are often denominated in dollars, the market for tourist rental properties is highly developed, and gross returns can reach 8% to 12% on properties under hotel management. This market is governed by Dutch law—cross-border acquisitions require heightened legal scrutiny.
Land in Saint-Martin: a silent pressure
The island covers less than 88 square kilometers and has a population of nearly 40,000 on the French side, with heavy tourist traffic. Available land is scarce, buildable areas are limited by the local urban planning regulations (PLU), and densification is restricted to preserve the natural environment and landscape. When a property becomes available in sought-after areas—Terres Basses, Baie Orientale, Oyster Pond, Anse Marcel—the time to market is very short, and competition between local and international buyers is intense.
Why these markets remain undervalued
The lack of understanding of Saint Martin’s tax regime outside the territory is striking. The confusion between the DOM and COM is no trivial matter: it leads to errors in legal structuring, unworkable arrangements, and costly disappointments. These two islands require precise local expertise—not a transposed metropolitan analytical framework.
Similarly, in Guadeloupe, the wealth of local incentives—such as temporary property tax exemptions, a well-structured CIOP scheme via an SCI subject to corporate income tax, and transfer taxes reduced to 2.5% on new properties—is largely underutilized due to a lack of specialized support for the French overseas departments and territories.
It is precisely to navigate this complexity that Apromeos has structured its expertise around the unique characteristics of each region—not around a catalog of generic programs copied from metropolitan areas.
