A typical Trans-Pacific freight invoice lists 15 to 20 surcharge line items beyond the base ocean freight, and the surcharge total frequently exceeds the base rate itself. For a 40HQ shipment from South China to the US East Coast, base ocean freight might be $3,000 to $4,500, but surcharges, origin receiving charge plus AMS plus ISF plus PCS plus DDC plus chassis fee plus PSS plus BAF plus THC plus ISPS plus seal fee, can easily add more than $2,500. Importers unfamiliar with the surcharge structure routinely find actual freight invoices 50 percent or more above initial quotes, and the gap is not a mistake. It is how ocean freight contracts work, and every line is individually permitted under carrier terms.
The structure is the same on every lane, but the Trans-Pacific eastbound trade lane has the most surcharge line items of any global shipping route. The Europe and Mediterranean lane is the most standardized, with six standard items, BAF plus LSS plus THC plus SCS plus ENS plus ISPS, plus seasonal PSS and currency-driven CAF, and total surcharges there typically add $600 to $1,200 per 40HQ on top of base ocean freight. The Trans-Pacific lane is the most complex, and the complexity is the cost. Freight quotes and invoices diverge for exactly this reason: the quote is the base rate, and the invoice is the base rate plus every line the contract permits.
Bunker Adjustment Factor is the largest surcharge on most lanes, and it adjusts for fuel price movements on a monthly or quarterly basis. The July 2026 Trans-Pacific reference rate is $280 to $560 per 40HQ, and on Asia-Europe it runs $560 per 40HQ, because bunker fuel accounts for 15 to 30 percent of a carrier's total operating cost and can exceed 40 percent when oil prices are elevated. BAF is a permitted contract variation, not a breach of the agreed rate, and it moves after you book. Peak Season Surcharge runs July through November on the Trans-Pacific lane at $300 to $800 per 40HQ, and in 2025 it added $200 to $400 per TEU. General Rate Increase is $400 to $600 per 40HQ per round, filed with the Federal Maritime Commission, and it can repeat multiple times in peak season.
The destination charges are the second pile. DDC, the destination delivery charge, runs $350 to $600 per 40GP on the US West Coast and $450 to $800 on the US East Coast. THC, the terminal handling charge, runs $120 to $170 per 40ft at origin and $160 to $270 at destination on the China-UK lane. AMS, the Automated Manifest System filing, is $25 to $35 per bill of lading, filed by the carrier with CBP 24 hours before vessel loading. ISF is $25 to $50 per bill of lading. Demurrage and detention run $50 to $120 per container per day when the box sits too long. Each line is small. The pile is not. Brokerage fees work the same way: the line you did not budget is the one that eats the margin.
The base rate is negotiable, and it depends on volume. BAF is not, because it is a floating adjustment tied to fuel prices. PSS is not, because it is seasonal and contractually permitted. GRI is not, because it is FMC-filed and applies to the lane, not to you. The destination charges are the ones to watch: DDC, chassis fees, and demurrage are where a forwarder's invoice can be checked line by line, and the check is whether the charge matches the carrier's published tariff on the day of booking. The 2026 emergency fuel surcharges are the newest line: every major container carrier introduced them between March and May 2026, triggered by the Strait of Hormuz closure, with MSC confirming an EFS of $41 to $49 per TEU from India and Pakistan origins, and they are classified as emergency pass-throughs, not capped by the contracted base rate.
The landed cost model has to carry the invoice, not the quote. A 40HQ of LED lighting fixtures from Shenzhen to Manchester in October 2026, goods value $40,000, ocean freight $3,800, marine insurance $700, still carries $1,200 to $2,300 in surrounding charges on a 40ft box before duty and VAT. The model that uses the quote will be wrong by that amount, every time, on every container. The merchandise processing fee is the same lesson at the border: the line you did not model is the line that decides the margin.
Because the quote is the base ocean freight, and the invoice adds 15 to 20 surcharge lines: BAF, PSS, GRI, THC, DDC, AMS, ISF, and more. On the Trans-Pacific lane the surcharges frequently exceed the base rate itself, and the total can run 50 percent or more above the quote.
The Bunker Adjustment Factor, a surcharge that adjusts for fuel price movements on a monthly or quarterly basis. The July 2026 Trans-Pacific reference rate is $280 to $560 per 40HQ. It is a permitted contract variation, not a breach, and it moves after you book.
A seasonal surcharge carriers impose when demand exceeds capacity, typically July through November on the Trans-Pacific lane, at $300 to $800 per 40HQ. It sits on top of the base rate and the fuel surcharges, and it is contractually permitted.
The base rate, which depends on volume. BAF, PSS, and GRI are generally not negotiable. Destination charges such as DDC, chassis fees, and demurrage are the ones to check line by line against the carrier's published tariff.