The two most common ways to employ a ship are the time charter and the voyage charter. Both put a vessel to work, but they split costs, risks and control in very different ways. Choosing the wrong structure, or accepting weak clauses within the right one, can quietly erode a voyage's profit. This guide explains the difference and highlights the clauses owners should never sign without reading.
How the Two Charters Differ
Under a time charter, the charterer hires the vessel for a period and pays hire per day. The owner keeps the crew, maintains the ship and pays running costs, while the charterer directs the commercial employment and pays for bunkers, port charges and cargo handling. Standard forms such as NYPE or Baltime are common here. Under a voyage charter, the owner carries an agreed cargo between named ports for a freight rate, usually per tonne or as a lump sum, and bears most voyage costs including bunkers and port dues. GENCON is the typical form. In short: a time charter sells the use of the ship over time, while a voyage charter sells the carriage of a specific cargo.
Clauses Owners Must Check
The risk profile differs, so the critical clauses differ too. For a time charter, pay close attention to:
- Off-hire — exactly which events stop hire and how time is calculated; a loose clause can cost real money during breakdowns or surveys.
- Speed and consumption — the performance warranty and how underperformance claims are settled.
- Trading and cargo exclusions — limits on areas, war zones and dangerous goods.
- Redelivery — notices, condition and bunker quantities on return.
For a voyage charter, the heart of the deal is laytime and demurrage. Check how laytime is defined, when the notice of readiness can be tendered, what counts as excepted periods, and the demurrage rate for delay. Also review the cargo description, loading and discharging terms, and who bears the cost of waiting for a berth. Misreading laytime is one of the most common and expensive mistakes in the dry and tanker trades, so an independent expert maritime contract review of these clauses is well worth the time.
Matching the Charter to Your Risk Appetite
Neither structure is inherently better; the right choice depends on the market and your tolerance for risk. A time charter gives steadier income but passes commercial upside to the charterer. A voyage charter can capture a strong freight market but exposes the owner to port delays, bunker swings and laytime disputes. Whichever you choose, the protection lies in the detail of the clauses, not in the form name on the cover.
Before you fix your next cargo or period, have the charter party reviewed by people who read these clauses every day. Book a session through our contract review consultation and protect your earnings before the vessel sails.
