Sint Maarten capital gains tax calculator
Sint Maarten taxes no general capital gain of an individual. Selling a stake of 5% or more in a company pays 15% of the gain plus a 25% surtax, 18.75% in all. Shares under 5%, crypto and property pay nothing.
Work out the tax on a share sale from your dates and costs. Enter sales by hand or import your CSVs, tick the 5% toggle on a substantial interest, and the calculator nets same-year losses, adds the surtax and shows the arithmetic behind the final figure. Everything stays in your browser.
Rates current as of 2026-09-30, from the Landsverordening op de inkomstenbelasting and the sources each record cites.
Current rules
The rates behind the number
The substantial interest charge by year
| Tax year | Currency | Tax on the gain (5% stake or more) | Surtax on that tax | Effective rate | Shares under 5%, crypto, property |
|---|---|---|---|---|---|
| 2021 | Guilder (ANG) | 15% | 25% | 18.75% | Not taxed |
| 2022 | Guilder (ANG) | 15% | 25% | 18.75% | Not taxed |
| 2023 | Guilder (ANG) | 15% | 25% | 18.75% | Not taxed |
| 2024 | Guilder (ANG) | 15% | 25% | 18.75% | Not taxed |
| 2025 | Caribbean guilder (XCG) | 15% | 25% | 18.75% | Not taxed |
| 2026 | Caribbean guilder (XCG) | 15% | 25% | 18.75% | Not taxed |
| 2027 (planning) | Caribbean guilder (XCG) | 15% | 25% | 18.75% | Not taxed |
Rules and exemptions
| Rule | Value |
|---|---|
| Substantial interest | 5% or more of a company's issued share capital, alone or with a spouse |
| Gain on a substantial interest | 15% of the net gain on request, plus 25% surtax on the tax: 18.75% |
| Gain without the request | Taxed on the progressive income tax scale, 12.5% to 47.5% |
| Shares under 5% of a company | Not taxed for an individual outside business |
| Crypto of a private investor | Not taxed |
| Real estate of a private owner | No capital gains tax; land tax of 0.3% of the taxable value is paid on ownership |
| Losses | Net against substantial interest gains of the same year |
| Filing | Income tax return due two months after the Tax Administration's invitation to file |
| Currency | Caribbean guilder (XCG) from 31 March 2025, replacing the guilder (ANG) at 1 for 1 |
Tables reflect the source records as of 2026-09-30. Each links back to the authority page above.
Questions
Sint Maarten capital gains questions
How much is capital gains tax in Sint Maarten?
Sint Maarten has no general capital gains tax for individuals. Selling a substantial interest, a holding of 5% or more of a company, is taxed at 15% of the net gain plus a 25% surtax on that tax, 18.75% in all. Gains on smaller shareholdings, crypto and property of a private person are not taxed.
Do I have to ask for the 15% rate?
Yes. Article 24(4) of the income tax ordinance applies the 15% on the taxpayer's request in the return. Without the request the gain is taxed on the progressive income tax scale, which runs from 12.5% to 47.5%.
Is Sint Maarten the same as Saint-Martin?
No. Sint Maarten is the Dutch half of the island, a constituent country of the Kingdom of the Netherlands with its own tax law. The French half, Saint-Martin, is covered by French tax rules.
How is capital gains tax charged in Sint Maarten?
Sint Maarten has no general capital gains tax for individuals. The one capital gains charge on a resident individual is the tax on gains from a substantial interest: a holding of at least 5% of a company's issued share capital. On the taxpayer's request the net gain is taxed at 15% excluding surtax (Landsverordening op de inkomstenbelasting, article 24(4)), and the 25% national surtax (opcenten) on the tax makes the effective rate 18.75%. Source: https://repository.officiele-overheidspublicaties.nl/CVDR/CVDR142584/5/html/142584_5.html
What counts as a substantial interest?
A substantial interest means, alone or with a spouse, at least 5% of the issued share capital of a company whose capital is divided into shares, rights to acquire shares up to 5% or more, or profit-sharing certificates covering at least 5% of annual profit or of liquidation proceeds (article 11(3)). Holdings of a spouse or blood relatives in the direct line are added in the cases of article 11(4). Source: https://repository.officiele-overheidspublicaties.nl/CVDR/CVDR142584/5/html/142584_5.html
How is the gain worked out?
The gain on disposal is the transfer price less the acquisition price; where either is missing or was not agreed at arm's length the market value is used (article 11(6)). Buy-backs, liquidation payments, repayment of claims, contribution to a business, the substantial interest ceasing to exist, and ceasing to live in Sint Maarten count as disposals (article 11(5)). Source: https://repository.officiele-overheidspublicaties.nl/CVDR/CVDR142584/5/html/142584_5.html
Are smaller shareholdings and crypto taxed?
Gains on shares held below 5% are not taxed for an individual who is not acting in a business, and neither are gains on crypto or other private assets: article 11 lists the capital gains that enter income (business assets, liquidation proceeds, substantial interests) and the Tax Administration's return explanation lists no other disposal gain for a private investor. Source: https://www.sintmaartengov.org/Documents/Income%20Tax%20Forms/Toelichting_A-biljet_2024%20ENG%202.pdf
What about real estate sales?
Real estate: a private individual's gain on selling a home or investment property is not among the gains that article 11 brings into income, so it is not taxed unless the property is a business asset or the sale is part of an independent activity. Owning property pays land tax of 0.3% of the taxable value (Grondbelastingverordening article 11). Sources: https://repository.officiele-overheidspublicaties.nl/CVDR/CVDR142584/5/html/142584_5.html and https://lokaleregelgeving.overheid.nl/CVDR448776
Do losses reduce the tax?
Losses: a loss on a substantial interest nets against the substantial interest gains of the same year, because the charge is on the net of the disposal gains. The flat-rate gain pays nothing when the year's net is nil or negative. Source: https://repository.officiele-overheidspublicaties.nl/CVDR/CVDR142584/5/html/142584_5.html
Which currency and filing deadline apply?
Currency and filing: amounts in this record are in the Caribbean guilder (XCG). The Caribbean guilder replaced the Netherlands Antillean guilder on 31 March 2025 at 1 for 1, so every figure is unchanged across the changeover. The income tax return is due two months after the Tax Administration's invitation to file, and a postponement is requested before that date. Source: https://www.sintmaartengov.org/Documents/Income%20Tax%20Forms/Toelichting_A-biljet_2024%20ENG%202.pdf
Verification
References
Sources
The pages the figures on this page were read from.
Landsverordening houdende regels inzake een belasting op bedrijfsomzetten
Used for VAT and GST. Retrieved .
Landsverordening op de inkomstenbelasting
Used for capital gains tax. Retrieved .
Loonbelastingtabellen 2022 (AB 2023, no. 29, Bijlage II)
Used for income tax. Retrieved .
Tabel inkomstenbelasting 2023 (AB 2024, no. 42, Bijlage I)
Used for income tax. Retrieved .
Tabel inkomstenbelasting 2024 (AB 2025, no. 09, Bijlage I)
Used for income tax. Retrieved .
Tabel inkomstenbelasting 2025 (AB 2025, no. 25, Bijlage I)
Used for income tax. Retrieved .
Tabel inkomstenbelasting 2026 (AB 2026, no. 11, Bijlage I)
Used for income tax. Retrieved .
Official links
The country's tax authority and its capital gains tax pages.
Sint Maarten Tax Administration
Tax authority. Checked .
Landsverordening op de inkomstenbelasting
Capital gains tax. Checked .
How the calculator works and is tested
Every rate, threshold and date on this page comes from 19 dated records covering 2021 to 2027. Each record names the page it was read from and the day it was retrieved. The calculator applies the record in force on the day of each sale and stops with an error when none is, instead of estimating.
Sales are matched to purchases by the country's own rule: first in, first out by default, the UK's same-day, 30-day and Section 104 rules, and Canada's average cost. A sale not fully valued in the country's currency is flagged and left out of the result, never guessed.
Every country has a calculation engine with its own test file of worked cases. Where a calculator ships sample exports, tests run them through the import adapters and check that each file is detected and read correctly. Type checks, linting, unit tests and backend tests run on every change, and English page renders are compared with stored snapshots.