Yes, the U.S. Dollar is widely accepted and essentially functions as a primary currency throughout both the Dutch side (Sint Maarten) and the French side (Saint-Martin) in 2026. While the official currency on the Dutch side is the Netherlands Antillean Guilder (ANG) and the Euro (EUR) on the French side, almost every business—from high-end boutiques in Philipsburg to beach bars in Orient Bay—prices their items in U.S. Dollars or offers a favorable exchange rate. In many cases, the "street" exchange rate is 1:1 for the Dollar and Euro, which is a high-value perk for American travelers. Credit cards are also universally accepted at major establishments. For 2026 travelers, it is a "pro-move" to carry some small-denomination U.S. bills for tips and local markets, as you may occasionally receive change in local guilders or Euros. This currency flexibility is a premier feature of the island, making it one of the most frictionless and "budget-friendly" destinations in the Caribbean for tourists coming from the United States.