Ocean Freight Surcharges Complete Guide: BAF, PSS, GRI, THC, CIC, WRS, SCS, PCS Explained (2026)

1. Foreword: 10 Years of Shipping Line Management Experience

This guide is written from the perspective of a professional who spent 10 years managing trade lane pricing at several of the world's top 10 container shipping lines — starting from the rate desk, later leading the Europe and US-Canada trade lanes, and ultimately overseeing Asia-Pacific pricing strategy. The #1 question I've been asked over the years: "How many types of surcharges do you carriers have — and why do freight rates never stop changing?"

This article answers that question with complete transparency. No marketing fluff. Just how the pricing actually works from inside the shipping line, what freight forwarders should watch for, and how shippers can protect themselves. Written by the founder of Great Hensen International Logistics.

2. Base Ocean Freight: How It Works — and Why It Keeps Shrinking

Base ocean freight (O/F) is the fundamental charge a carrier levies to transport a container from the port of loading (POL) to the port of discharge (POD). It is the "floor" of every freight quotation — all surcharges stack on top of it.

When someone says "sea freight is $500," they are referring to the base freight only, exclusive of all surcharges. But over the past 15 years, more and more cost items have been stripped out of the base freight and repackaged as separate surcharges. This means the "base freight" number you see today covers a shrinking share of the total transport cost.

Pricing mechanics. Carrier pricing desks track market indices (SCFI, Drewry WCI) daily or weekly and adjust spot quotations based on their vessel load factor. The three core pricing logics are: (1) market-driven — following what competitors charge on the same route; (2) cost-driven — covering vessel operating costs plus a margin; and (3) value-driven — charging premium for scarce space during peak demand.

Billing units. FAK (Freight All Kinds) is the dominant model — a flat rate per container type (20GP/40GP/40HQ/45HQ), regardless of cargo type. Commodity-specific rates apply to certain low-value bulk cargoes (waste paper, stone, cotton). For LCL (less-than-container-load), billing is per weight-ton or measurement-ton, whichever is greater (W/M).

Why surcharges keep growing. Before the 2008 financial crisis, base freight covered most transport costs. The crisis pushed carriers into collective losses, and they began systematically unbundling costs into separate surcharges. This serves two purposes: more precise P&L management (each cost driver has a dedicated surcharge to hedge against it) and greater pricing flexibility (adjusting a surcharge is administratively easier and faster than adjusting the base freight rate). This is an irreversible structural trend. Today, total surcharges frequently exceed the base freight itself.

3. The 10-Category Surcharge Framework

Ocean freight surcharges are floating charges carriers levy to manage cost volatility, supply-demand imbalances, or special service requirements. They function identically to airline fuel surcharges — stripping unpredictable cost variables out of the fixed rate and letting them float independently.

I categorize all surcharges into 10 groups by their cost driver:

Each category is explained in its own section below. For operational details on your specific trade lane, jump to the route-specific guide that matches your shipping corridor.

4. Fuel & Energy Surcharges

BAF (Bunker Adjustment Factor). The largest surcharge on most invoices. Bunker fuel accounts for 15-30% of total vessel operating costs — and can exceed 40% when oil prices spike. BAF is the carrier's primary tool for passing fuel price risk to shippers. Most carriers use floating formulas tied to IFO 380 / VLSFO fuel indices at Singapore, Rotterdam, or Fujairah, adjusted monthly or quarterly. Example: on the Asia-Europe trade in July 2026, BAF is approximately $280 per 20ft and $560 per 40ft/40HQ. BAF in annual contracts is typically non-lockable — it floats with the carrier's published formula even under long-term agreements.

EBS (Emergency Bunker Surcharge). The "emergency patch" for BAF. When oil prices spike so fast that the BAF formula cannot adjust in time, carriers impose a temporary EBS. The 2022 Russia-Ukraine conflict triggered widespread EBS on Middle East and South America routes ($50-200 per container). As of July 2026, Maersk implemented a global Emergency Bunker Surcharge (March 25) that is monitored and adjusted every 14 days based on fuel availability, cost, and mix.

LSS (Low Sulphur Surcharge). Effective January 1, 2020, IMO mandated a global sulfur cap of 0.5% (down from 3.5%). Low-sulfur fuel (VLSFO/MGO) costs significantly more than traditional heavy fuel oil (HFO). Carriers pass this compliance cost through LSS: typically $50-70 per 20ft and $100-140 per 40ft on Asia-Europe routes. Some shippers question the fairness of per-box LSS billing, but this is now firmly established industry practice.

5. Peak Season & Demand Surcharges

PSS (Peak Season Surcharge). A temporary charge applied during high-demand windows — typically August-November on Asia-Europe and Trans-Pacific, and January before Chinese New Year. During peak season, space is scarce; PSS serves as both a price rationing mechanism (prioritizing higher-value cargo) and a profit-maximization tool. Trans-Pacific PSS can reach $300-800 per 40HQ during peak months, while near-sea routes (Southeast Asia) see milder PSS of $50-150 per container. Carriers announce PSS 2-4 weeks in advance. It should be removed after peak season — but some carriers keep it in place. Forwarders need to track and negotiate this actively.

GRI (General Rate Increase). Unlike PSS, GRI is a general (potentially permanent) increase to the base freight rate itself. Carriers announce GRIs 30 days in advance for an entire trade lane. Historically, only 40-60% of announced GRIs are fully implemented — the rest are reduced, delayed, or withdrawn depending on whether competitors follow. In 2026, major GRIs include: Hapag-Lloyd GRI Asia→Africa $500/container (Jan); MSC Asia-Europe GRI pushing rates above $5,700/FEU (Jun); COSCO GRI Far East→US/Canada $2,400-$3,798 per container (Jul).

6. Port & Terminal Surcharges

THC (Terminal Handling Charge). Covers container loading/discharge, yard storage, tallying, and internal terminal transfers. Paid at both origin (OTHC) and destination (DTHC). China origin THC: approximately CNY 600-900 per 20ft and CNY 900-1,200 per 40ft/40HQ. European destination THC: EUR 150-250 per 20ft, varying significantly by port. THC is generally non-negotiable — it is set by the terminal operator, not the carrier.

ORC (Origin Receiving Charge). Primarily applied to South China exports (Shenzhen, Guangzhou) to the US and Canada. It essentially bundles OTHC with documentation handling into a single item. Typical rates: 20GP $141, 40GP $189, 40HQ $214. ORC has a unique historical origin: in the 1990s, contract rates from South China to the US were driven so low (even to "zero freight") that carriers created ORC as a backdoor cost recovery mechanism. Today it remains a rigid surcharge on this corridor.

CIC / EIS (Container Imbalance Charge / Equipment Imbalance Surcharge). Global trade flows are highly directional — China exports far more than it imports. Empty containers accumulate at destination ports (North America, Europe) while export ports (China) face shortages. The cost of repositioning empty containers back to export hubs falls on carriers, who pass it through CIC. Typical rates: 20ft $50-150, 40ft/40HQ $100-300. CIC is highest on routes with the most extreme trade imbalance — China to Middle East/India (minimal return cargo), China to Africa (almost zero return cargo). It is lower on the Trans-Pacific because the US has some agricultural and waste-paper backhaul.

7. Currency Surcharges

CAF (Currency Adjustment Factor). Carrier costs are predominantly USD-denominated, but port charges, agency fees, and local operating costs are paid in local currencies. When the dollar weakens against these currencies, the carrier's real costs rise. CAF is typically a percentage of base freight (e.g., CAF = 3.5% of O/F). It applies most commonly on Europe/Mediterranean (EUR/USD), Japan/Korea (JPY/USD, KRW/USD), and Australia/New Zealand (AUD/USD) routes. With the strong-dollar cycle of recent years, CAF has been suspended or reduced to minimal levels on most routes.

YAS (Yen Appreciation Surcharge). Japan-specific. When JPY strengthens against USD, Japanese port and agency costs rise in dollar terms. Currently mostly suspended due to prolonged yen weakness.

8. War & Piracy Risk Surcharges

WRS / WRC (War Risk Surcharge). Applied when vessels transit or call at ports in or near armed conflict zones. Current (2026) active zones: Red Sea/Gulf of Aden (Houthi attacks on commercial shipping since late 2023), Persian Gulf/Strait of Hormuz (US-Iran tensions), Black Sea (Russia-Ukraine conflict), Gulf of Guinea (West Africa piracy). WRS is highly volatile — during the Red Sea crisis, some carriers charged $500-1,500 per container. A critical point: whether WRS applies depends on whether the carrier still serves the route. If carriers reroute around the Cape of Good Hope, WRS may be replaced by a "Cape of Good Hope Diversion Surcharge."

PRS (Piracy Risk Surcharge). High-risk zones: Gulf of Guinea (West Africa — now the world's most active piracy region), Somali coast/Gulf of Aden (historically severe, now largely suppressed by naval patrols), and Singapore Strait (rising incidents, mostly theft). Carriers respond with armed guards, razor wire, water cannons, and increased speed through risk zones — all passed through as PRS.

9. Canal Transit Surcharges

SCS (Suez Canal Surcharge). Suez Canal transit fees for a large container ship range from $300,000 to $700,000 per passage. Carriers distribute this cost across all containers on the sailing. The 2021 Ever Given incident temporarily added congestion surcharges and accelerated carrier cost-benefit analysis of the Cape route alternative. SCS is charged on all Asia-Europe and Asia-Mediterranean cargo unless the vessel diverts around the Cape.

PCS (Panama Canal Surcharge). Applied on Asia to US East Coast, Caribbean, and South America East Coast cargo transiting the Panama Canal. The 2023-2024 historic drought reduced daily transits from 36-38 vessels to as low as 24, forcing carriers to bid for auction slots (at millions of dollars in additional cost) or divert cargo via Suez or US West Coast rail. These extraordinary costs were partially passed to shippers through PCS and temporary "Panama Canal Drought Surcharges."

10. Port Congestion Surcharges

CGS / PCS (Congestion Surcharge / Port Congestion Surcharge). Applied when destination port waiting times exceed 48-72 hours. A 5,000-TEU vessel waiting at anchorage costs approximately $25,000-50,000 per day (charter cost, fuel, crew). Three days of waiting = $75,000-150,000, distributed across the cargo on board. Notable congestion cases: Los Angeles/Long Beach (2021, 2-3 week waits), Durban South Africa (chronic, aging equipment), Lagos/Apapa Nigeria (infrastructure constraints), and Hamburg/Rotterdam (during labor strikes).

11. Special Cargo Surcharges

OWS (Over Weight Surcharge). Applied when container gross weight exceeds carrier limits (varies by carrier, typically 18-22 tons for 20ft). Overweight containers affect vessel trim and stability, increase equipment wear, and incur extra terminal handling charges at certain ports.

OOG / ODC (Out of Gauge / Out of Dimension Cargo). Cargo exceeding standard container internal dimensions requires special equipment — open-top, flat rack, or platform containers. Additional charges include special equipment usage fees, lashing and securing charges, and slot-loss compensation (OOG cargo occupies adjacent slots). This is always quoted case-by-case. See our heavy-lift & project cargo services.

DG Surcharge (Dangerous Goods / Hazardous Cargo Surcharge). Varies significantly by IMDG class (1-9). Higher-hazard classes (Class 1 explosives, Class 7 radioactive) incur substantially higher charges than lower-hazard classes (Class 9 miscellaneous). Typically $100-500 per container. Great Hensen is a DG specialist — we handle IMDG Classes 2-9, including UN3536 BESS. See our DG freight services.

Reefer Surcharge. Refrigerated containers cost 3-5× more than standard dry containers to build and maintain, consume onboard electricity, and require monitoring. Reefer freight rates are typically 2-4× the standard rate for the same route, with a separate reefer fuel surcharge independent of standard BAF.

12. Government Compliance Surcharges

AMS (Automated Manifest System) — US. Post-9/11, US Customs (CBP) requires detailed cargo manifest data submitted 24 hours before loading at origin. Fee: $25-35 per Bill of Lading. Non-negotiable.

ENS (Entry Summary Declaration) — EU. EU equivalent of AMS. Requires cargo data submitted 24 hours before arrival at the first EU port (2 hours for short-sea). Fee: EUR 25-35 per B/L.

AFR (Advance Filing Rule) — Japan. Japan's requirement is stricter than the US: cargo manifest data must be submitted before vessel departure from the origin port (not just 24 hours before arrival). Fee: JPY 3,000-5,000 per B/L.

ISPS (International Ship and Port Facility Security). IMO post-9/11 security code compliance. Fee: $8-15 per container. Universally applied, globally standardized, zero negotiation room — this is a government-mandated compliance cost.

VGM Fee (Verified Gross Mass). Under SOLAS Convention amendments, shippers must provide the verified container weight before loading. Terminals invest in weighing equipment and management systems. Fee: CNY 50-200 per container (higher if the terminal weighs on your behalf).

13. Destination & Inland Charges

DDC (Destination Delivery Charge) — US/Canada. Covers the full chain of operations from vessel discharge to trucker handover: unloading, yard storage (free period), chassis usage, and gate management. US West Coast (LA/LB): $350-600 per 40ft. US East Coast (NY/NJ): $450-800 per 40ft. Chassis Fee and Clean Truck Fee (CTF) are additional destination charges unique to the US market.

IHC (Inland Haulage Charge). Applicable when cargo moves beyond the port — door delivery, inland container depot transfer. Typically quoted by the forwarder or trucking company rather than the carrier, but included in carrier CFS and intermodal offerings.

IPI (Interior Point Intermodal) / Rail Surcharge. For US inland destinations (Chicago, Dallas, etc.) served by rail from the port. Rail charges plus transfer fees bundled as IPI surcharge.

13b. Demurrage & Detention — The Most Expensive Avoidable Charges

Demurrage and detention are not carrier surcharges in the traditional sense — they are penalty charges triggered by operational delays. But they are often the single largest unexpected cost on a freight invoice, and they are entirely avoidable with proper planning. A container left at the terminal three days past its free time can cost $300-900 in demurrage alone. A container held at a warehouse for a week beyond the allotted free days can add $500-1,500 in detention.

How to Avoid Demurrage & Detention Charges

• Pre-clear customs before vessel arrival. Submit customs documentation 3-5 days before the vessel arrives at the destination port. If customs is cleared before discharge, you can pick up the container on day 1 of free time — not day 3.
• Know your Last Free Date. Most carriers provide this date online. Put it in your calendar. One day past this date triggers a full day of demurrage, often at the escalated rate.
• Align truck and warehouse planning in advance. The #1 cause of detention: the warehouse is not ready to receive the cargo, and the container sits on a chassis accumulating daily detention charges. Book your truck 3-5 days before arrival.
• Track empty return deadlines. Detention ends when the empty container is gated-in at the designated return depot. Missing the return deadline by one day can trigger a full week of charges on some carrier tariffs.
• Negotiate free time in your contract. Annual contract shippers can negotiate extended free time — 10-14 days of demurrage-free and 14-21 days of detention-free are achievable with committed volume. Spot shippers get the standard (shorter) free time.
• Important (US trades): Under FMC rules, if a detention/demurrage invoice fails to include required information (container number, free time dates, rate breakdown), the billed party has no obligation to pay that charge. Always request an itemized D&D invoice.

For a typical 40ft container on Asia-Europe routes, three extra days of demurrage at $200/day = $600. One week of detention at $100/day = $700. Combined: $1,300 in avoidable charges. This is more than the BAF on most invoices. See our rate indices guide and H2 2026 rate outlook for planning your shipment timing.

14. Global Trade Lane Quick-Reference Matrix

★ = Charged on virtually all shipments on this route | ☆ = Occasional or situational | — = Not applicable

15. Route-Specific Surcharge Guides

Each trade lane has a unique surcharge profile. Click through for the full breakdown on your specific route:

14b. 2026 GRI & PSS Announcement Timeline

The table below tracks major carrier GRI and PSS announcements from January through July 2026. Carriers typically announce GRIs 30 days in advance. Only 40-60% of announced GRIs are fully implemented — the rest are reduced, delayed, or withdrawn depending on whether competitors follow.

Source: Carrier public announcements, FMC filings, industry trade press. This is not an exhaustive list — regional carriers and smaller trade lanes may have additional GRIs. Always check with your forwarder for the latest carrier-specific advisories affecting your trade lane.

15. What a Typical Freight Invoice Looks Like: Cost Stack Example

Below is an illustrative all-in cost stack for a 40ft High Cube container shipping from Qingdao to Rotterdam in July 2026. This is what "all-in" actually means — the base freight is only part of the picture.

This is illustrative. Actual rates vary by carrier, contract type, season, and cargo specifics. SCS is shown as $0 (Cape of Good Hope routing as of July 2026). If Suez reopens, add approximately $200-400 for SCS. Always request an itemized all-in quote — a quote showing only the base freight omits 35-50% of your actual cost.

16. Frequently Asked Questions