Routes and the choice of port
Cuba sits close to major Caribbean and Gulf shipping lanes, so vessels can reach it from many directions. Cargo may arrive on services calling directly at Cuban ports or via transhipment through other Caribbean hubs, depending on the carrier and the trade. Because the island is long, the port of discharge is chosen with the final destination in mind: western Cuba is best served through Mariel or Havana, the centre through Cienfuegos, and the east through Santiago de Cuba.
Cargo type also drives the choice. Containerised goods gravitate toward Mariel's deepwater terminal, while bulk, energy, and general cargo move through ports equipped for them. Selecting the right harbour early avoids costly inland haulage across the island.
Customs and clearance
Every commercial shipment entering Cuba is handled by the Aduana General de la República de Cuba, the national customs service. Import documentation, tariff classification, inspection, and duty assessment all pass through this authority. As with customs anywhere, accurate paperwork and correct classification of the goods are what keep a shipment moving.
Because rules and required documents can change, shippers work from current official guidance rather than assumptions. This guide stays deliberately qualitative: it does not quote specific duty rates or fees, because those figures vary by product and over time and should always be confirmed from authoritative sources before shipping.
The sanctions dimension
The single most distinctive feature of shipping to Cuba is the U.S. sanctions regime. The embargo, administered by OFAC, restricts many transactions with Cuba, affects which vessels and companies will handle the trade, and complicates payment and financing. These are documented legal facts that materially shape what is possible.
Anyone arranging cargo to Cuba therefore needs to understand their own legal position under applicable law, not only the shipping mechanics. In practice, successful shipments depend as much on getting the compliance framework right as on booking space on a vessel. Treating the legal and logistical sides as one problem is the realistic way to approach the trade.
A sensible sequence, then, is to confirm the legal position first, then match cargo to the right port, then handle documentation and customs. Skipping the legal question at the start is the most common way that otherwise straightforward shipments run into trouble, so the compliance check belongs at the very beginning of the process rather than the end.