Yongtai Home, an aluminium outdoor furniture maker in Beilun, Ningbo, had its 2026 US orders stacked into a June-to-September shipping window. Zhang Haitao, the logistics director, booked 300 forty-foot high-cube containers in one go, 180 for Long Beach on the US West Coast and 120 for Savannah on the East Coast. From mid-July the boxes were rolled two weeks running: the containers were gated in, customs cleared, terminal receipts in hand, and still they did not get on a vessel. The customer's California selling season opened on 20 September, and of the six core SKUs barely half had arrived by early September. The salvage operation was to split the cargo: two highest-margin SKUs flew out, the rest moved in three ocean batches matched to the customer's store regions. Air freight added RMB 470,000, on top of the late-delivery discount written into the supply contract.
At the peak-season negotiating table, the headline dollar figure on the quotation covers about sixty percent of the final invoice.
1. Pull the surcharges apart first: the base rate is only the starting point
A carrier quotation has three layers. Ocean freight covers the port-to-port sea leg only. Fuel-related surcharges track fuel indices: BAF, also written FAF or FSC, is recalculated monthly or quarterly against a published bunker index and sat roughly in the USD 300 to 600 per FEU band on deep-sea trades in mid-2026; LSS, the low-sulphur surcharge, exists because of the IMO 2020 rule that caps marine fuel sulphur content at 0.5 percent, with a stricter 0.1 percent ceiling inside emission control areas, and is billed separately because compliant fuel costs more, commonly USD 20 to 100 per TEU. Market-driven surcharges are PSS and GRI.
PSS, the peak season surcharge, is a temporary lift charged while demand is tightest, levied as a flat amount per container type, usually inside a June-to-October window with start and end dates and amounts published by each carrier individually. On quotations the common band is USD 200 to 800 per FEU, and higher when space is desperately short. GRI, the general rate increase, is a trade-wide increase announced by the carrier. On US trades the regulator requires at least 30 days' filing with the Federal Maritime Commission, so effective dates are visible in advance, typically falling on the first or the fifteenth of a month, with announced increases commonly USD 300 to 1,000 per FEU and partial rollbacks when demand softens. Currency surcharges such as CAF are billed as a few percent of the base rate, and terminal handling charges at origin and destination together usually add USD 200 to 700 per container. Stack those up and surcharges inflating the base rate by 30 to 60 percent is normal.
The first move in any negotiation is not to attack the base rate. It is to demand an all-in rate and a written list of what is excluded: destination clearance, trucking, warehousing, a possible port congestion surcharge, a war risk surcharge. Buyers who compare base rates alone always hand the difference back through surcharges.
2. Space guaranteed, equipment not guaranteed: the sentence that gets stretched
Yongtai's first loss came from how the space guarantee clause was drafted. Zhang had signed an annual agreement with a freight forwarder operating as an NVOCC, and the clause said space was guaranteed. When the trade rolled over, he learned how narrow that phrase is in practice. The forwarder guarantees a slot exists; it does not guarantee that the slot will be matched to your container, on your nominated vessel. The trade shorthand for it is: space guaranteed, equipment not guaranteed.
This is also where NVOCC and direct carrier contracting diverge. An NVOCC holds bulk space bought from carriers. It has many customers and reasonable flexibility, and in ordinary markets it can get your box on board. But its space is wholesale in nature. The moment the carrier cuts the allocation, the NVOCC has to rank customers, and whoever has the smaller annual volume and the cheaper breach cost gets pushed out first. A direct contract with the carrier, particularly an annual contract with a written allotment protection clause, sits on first-tier space and tends to be preserved when the trade is full. The price is a higher threshold: enough annual volume, shorter payment terms, and usually no ad hoc top-ups.
For a shipper running around 300 containers a year, the practical answer is to keep both channels open. Put the main contract with a carrier, tying 70 percent of stable volume into it in exchange for space priority. Give the remaining 30 percent to two or three NVOCCs and use whichever can genuinely release equipment during the crunch. The phrase guaranteeing space has to be rewritten into something settleable, for example a commitment of X forty-foot high-cubes released per sailing, with any shortfall deducted from the current invoice at USD Y per container.
3. When cargo gets rolled, who carries the liability
The cause of rolling is not flattering to anyone. To fill vessels, carriers routinely accept bookings well beyond actual capacity, in the region of 120 percent. When a vessel deployment changes at short notice, an upstream port backs up, or empty container repositioning falls behind, the surplus gets pushed to a later sailing. A rolled container is not a broken container, but the bill of lading is not issued and a customs release may have to be redone, because the manifest and the declaration both follow the new voyage.
Liability has to be read at three levels. Against the carrier, rolling is usually absorbed by exemptions in the booking terms and the bill of lading. Direct claims rarely succeed, especially in a full market where carriers point to force majeure or capacity adjustment clauses. Against the forwarder, a written guarantee of release that was not honoured is a breach, and the contractually agreed deduction applies. The third level is where the expensive money sits, at the bank and the customer. A delay that collides with the latest shipment date under a letter of credit becomes a discrepancy. A delay that collides with a customer's selling season becomes a supply contract breach and a rebate deduction. Those amounts are usually far larger than the freight itself, and they are precisely what a booking contract does not indemnify.
Once a box is rolled, work in order. Get the new vessel name and voyage number immediately and redo the customs declaration and manifest. At the same time send the customer a formal notice of delay with the carrier's written rolling certificate attached, since that document is the only evidence when discounts or liability are later discussed. If the customer's selling window is already at risk, start the cargo-splitting plan early instead of waiting for a third postponement.
4. Dead freight and cancellation fees: the cost of booking space and not using it
The reverse risk exists too. Dead freight applies when the quantity actually loaded falls short of the quantity booked. The carrier reserved the space and bore the corresponding revenue loss, and the shipper makes up the difference. In LCL business the figure is calculated precisely, usually by one of three methods: the quoted rate multiplied by the shortfall in cubic metres; total container freight plus origin port charges divided by standard cubic capacity, then multiplied by the shortfall; or total container cost divided by the chargeable cubic metres actually loaded, then multiplied by the shortfall. On a single consignment the three methods can differ by two or three hundred dollars, which is why the contract must fix the formula rather than say charges follow industry practice.
Cancellation fees in peak season are a separate line. The tighter the space, the heavier the penalty for cancelling within seven days of sailing, and on some trades it runs at a percentage of the full freight. What a shipper should secure is a free-cancellation window: no charge beyond ten days before sailing, 50 percent inside ten days, full amount inside 72 hours. That language is far easier to negotiate when the annual agreement is signed. Come back to it during a space crunch and nobody will move.
5. Demurrage and detention: one letter apart, two different bills
Free time and late fees are where peak-season invoices bite hardest, and the two terms get used interchangeably all the time. Demurrage is charged when a container stays beyond its free period while under the carrier's control, counted from discharge onto the terminal or yard until the container is picked up. Detention applies once the container is in the consignee's hands and is returned late, counted from pick-up until the empty box is back at the depot. Demurrage governs how slowly you pick up. Detention governs how slowly you return.
A third charge, storage, is levied by the terminal and has nothing to do with the carrier. When applying for free time, be precise about whether you are asking for free storage or free demurrage. Often only the latter is granted and storage is not waived at all, because that money is owed by the carrier to the terminal and the carrier has no reason to absorb it. Free time at destination is typically three to seven days, and extensions in peak season need a reason, such as an inland door far from the port or a lengthy clearance documentation cycle. On US trades this area is regulated by the FMC, whose final rule on demurrage and detention took full effect on 28 May 2024, with the regulator's stated position that such charges should promote freight fluidity rather than function as a revenue source.
6. What the renegotiated contract had to contain
Zhang rewrote the 2027 agreement and added only three things, each of them traceable to money. First, the space commitment moves from adjective to number: containers guaranteed per sailing, the deduction for any shortfall, and the right to terminate without dead freight if the shortfall repeats over two consecutive sailings. Second, the burden of evidence for rolling shifts to the carrier or forwarder: a written rolling certificate and new voyage arrangement within 24 hours, with amendment fees, manifest amendment costs and demurrage arising from the roll borne by the other side, converting what used to be a force majeure refuge into an evidence-first exemption. Third, caps on charges: PSS and GRI each capped for the contract term with the excess borne by the forwarder, and fuel surcharges adjusted by an agreed published index formula rather than any wording that leaves them to market conditions.
Full trades come round every year. What can be locked down ahead of time is never the rate itself, but the allocation of responsibility behind it.
Frequently Asked Questions
What is the difference between the peak season surcharge and a general rate increase, and can either be negotiated?
They are different in nature. The PSS is a temporary lift charged while demand is tightest, levied as a flat amount per container type, typically inside a June-to-October window with dates and amounts published by each carrier. The common band on quotations is USD 200 to 800 per FEU, higher at the peak, and it is a period-specific charge. A GRI is a trade-wide increase to the base rate announced by the carrier; on US trades at least 30 days' filing with the Federal Maritime Commission is required, so effective dates are visible in advance, with increases commonly USD 300 to 1,000 per FEU and partial rollbacks when demand softens. Negotiating room differs: cost-recovery items are rigid, while market-driven surcharges such as PSS and GRI can be capped in an annual contract, excluded for the contract term, or indexed to a published formula.
If cargo is rolled, can the shipper claim against the forwarder or the carrier?
A direct claim against the carrier rarely succeeds, because booking terms and bills of lading typically contain exemptions and carriers invoke force majeure or capacity adjustment clauses in a full market. The realistic target is the forwarder: if the annual agreement guaranteed equipment release and none came, that is a breach and the contractually agreed deduction applies. The large losses sit elsewhere. A roll that collides with the latest shipment date under a letter of credit becomes a discrepancy; a roll that collides with a customer's selling season triggers supply contract penalties and rebate deductions. Neither is covered by a booking contract. Get the carrier's written rolling certificate and new voyage arrangement immediately, since that document is the only evidence you will have.
Are demurrage and detention the same charge, and who pays them?
They are two separate charges. Demurrage is levied when a container stays beyond its free period under the carrier's control, counted from discharge onto the terminal or yard until it is picked up, and it governs how slowly the cargo is collected. Detention applies once the container is in the consignee's hands and is returned late, counted from pick-up until the empty box is back at the depot, governing how slowly it is returned. A third charge, storage, is levied by the terminal and is unrelated to the carrier. When applying for free time, be precise about whether you are requesting free storage or free demurrage, since often only the latter is granted. These charges fall on the consignee in principle, so even under CIF or CFR terms the allocation of destination late fees should be stated in the contract.
How is dead freight calculated, and what should an annual contract specify?
Dead freight applies when the quantity actually loaded falls short of the quantity booked: the carrier reserved the space and bore the revenue loss, and the shipper makes up the difference. In LCL business three calculation methods are common: the quoted rate multiplied by the shortfall in cubic metres; total container freight plus origin port charges divided by standard cubic capacity (conventionally 25 CBM for a 20GP, 50 CBM for a 40GP, 60 CBM for a 40HQ) multiplied by the shortfall; or total container cost divided by chargeable cubic metres actually loaded, multiplied by the shortfall. On one consignment the three methods can differ by two or three hundred dollars, so the annual contract must fix which one applies and also set a cancellation window, for example free beyond ten days before sailing, 50 percent inside ten days, and the full amount inside 72 hours.