Permanent Establishment in Sint Maarten: When a Foreign Company Becomes Taxable Here

Foreign companies do work in Sint Maarten constantly. A contractor flies in for a hotel refurbishment. A software business sends two engineers to install a system. A regional group runs a project office for eighteen months. In almost every one of those cases somebody eventually asks whether the company has become taxable on this island, and the answer usually arrives later than the exposure did.

The concept that decides it is permanent establishment. It is the threshold at which a foreign business stops merely doing things in a territory and starts being taxable there on the profit attributable to that presence. Sint Maarten's definition was amended to include an explicit time based safe harbour, and understanding where that line sits is the difference between a clean project and a retrospective assessment.

The 183-Day Safe Harbour

Sint Maarten's permanent establishment definition allows a foreign legal entity a window of 183 days in any 12 month period to conduct business in the territory without incurring profit tax exposure through that activity.

Three features of that rule cause most of the errors.

It is a rolling window, not a calendar year. The measurement runs across any 12 consecutive months. A project that runs from October to March does not reset in January. Businesses that plan against a financial year, and there are many, will misread this.

It is a threshold, not an allowance. Staying inside it means no profit tax exposure arises from that presence. Crossing it does not mean tax is owed on the days above 183. It means a permanent establishment exists, and the consequences attach to the presence as a whole.

It is a safe harbour, not the whole test. Sitting under 183 days protects against the duration limb. It does not license a foreign company to establish something that is a permanent establishment on other grounds, such as a fixed place of business genuinely at its disposal or a dependent agent habitually concluding contracts on its behalf. Duration is the limb people trip over most often. It is not the only one.

What Creates a Permanent Establishment

Beyond the duration question, the classic triggers are recognisable:

• A fixed place of business. An office, a workshop, a yard, a warehouse used as more than storage, a branch. What matters is that the space is at the company's disposal and that the business is carried on through it, not whether a lease exists in the company's name.
• A construction or installation project that runs beyond the threshold. Building sites are the classic case in this market, because refurbishment and construction projects here routinely overrun.
• A dependent agent who habitually concludes contracts in the company's name, or plays the principal role leading to them. An independent agent acting in the ordinary course of their own business is a different thing, but the label on the agreement does not settle it.
• Employees or contractors working here on an ongoing basis, particularly where they operate from a consistent location rather than travelling in and out.

Activities that are genuinely preparatory or auxiliary, such as storage or the collection of information, are usually outside the definition. That carve-out is narrower than most people assume and it is not a place to build a plan.

Counting days properly

The counting is where a project loses control of its own position. Two disciplines matter, and both have to start on day one rather than be reconstructed at the end.

First, count from the right start date. For a construction or installation project the clock generally runs from when work begins on site, including preparatory work, and it continues through interruptions such as weather delays, material shortages and seasonal shutdowns. A project that pauses for six weeks in the summer does not stop counting.

Second, look at the project rather than the personnel. Rotating four teams of engineers through a site does not create four short presences. It creates one continuous project presence. Companies that rotate staff specifically to keep individuals under a threshold are usually solving for the wrong test.

What Follows When the Threshold Is Crossed

A permanent establishment does not make the foreign company taxable in Sint Maarten on everything it earns worldwide. It makes it taxable here on the profit attributable to the establishment, at the standard profit tax rate of 34.5%, with the annual return due by 30 June. Our profit tax guide covers the filing mechanics.

The practical consequences are broader than the tax itself:

• Registration and filing obligations begin, and they begin from when the establishment arose rather than from when it was noticed.
• Attributing profit requires a basis. The establishment has to be treated as though it were dealing at arm's length with the rest of the company, which means revenue, costs and a defensible allocation of overhead. Companies that never separated the project in their accounts have to build that retrospectively, and retrospective allocations are the ones that get challenged.
• Payroll obligations may follow for people working here, which is a separate question from the corporate one and frequently arrives at the same time. See registering as an employer.
• The exposure is retrospective. This is the expensive part. The establishment existed from the date the facts made it exist, not from the date somebody worked it out, and unfiled periods carry penalties and interest.

The Turnover Tax Question Is Separate

This catches out more foreign businesses than the profit tax question does. Turnover tax in Sint Maarten attaches to the supply of services and the delivery of goods inside the territory. That test is about where the supply happens, and it does not depend on whether the supplier has a permanent establishment.

A foreign company can therefore be comfortably inside the 183 day safe harbour, with no profit tax exposure at all, and still be within the charge to turnover tax at 5% on what it supplies here. Our guide to turnover tax sets out the position, and it is worth reading before quoting on any Sint Maarten work, because the tax is a cost that has to be inside the price rather than discovered after it.

Practical Guidance for Foreign Businesses

1. Decide the position before mobilisation, in writing. Expected duration, where the work is performed, who contracts with whom, and whether anyone here can bind the company. This takes an hour at the start and weeks to reconstruct at the end.
2. Track days from day one. A simple log of on-site presence by project, maintained contemporaneously, is the only evidence that will be worth anything later.
3. Watch the extensions. Projects here overrun as a matter of routine. Build a review point at, say, 120 days so the decision is taken deliberately rather than discovered at 200.
4. Handle turnover tax separately and earlier. It does not wait for the permanent establishment analysis and it belongs in the pricing.
5. Do not fragment the contract to solve it. If the answer is that a permanent establishment exists, register and file. That position is defensible. A fragmented one is not.

The Short Version

A foreign company gets 183 days in any 12 month period before duration alone creates a permanent establishment in Sint Maarten. The window is generous, the clock is rolling rather than annual, and construction projects burn through it faster than anyone plans for because the counting continues through every delay.

The costly mistake is not crossing the threshold. It is crossing it without noticing, because the obligations then run from the date the facts changed rather than the date you realised.

If your business is working in Sint Maarten or planning to, talk to us before mobilisation rather than after. Confirm the current statutory definition and thresholds with the Belastingdienst or your advisor before relying on any figure here.