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ocean freight5 min readApril 21, 2026

Ocean Freight Surcharges Explained: BAF, CAF, THC, and More

Ocean freight invoices include dozens of surcharges beyond base rates. Understand BAF, CAF, THC, ISPS, and other fees that determine your true shipping cost.

Ocean Freight Surcharges Explained: BAF, CAF, THC, and More
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Decoding Ocean Freight Surcharges

Ocean freight quotes often separate base rates from surcharges, making true cost comparison difficult. Understanding each charge helps you evaluate quotes and forecast costs accurately.

BAF (Bunker Adjustment Factor)

  • Compensates for fuel price fluctuations
  • Major component of ocean rate (20-40% of total)
  • Recalculated monthly or quarterly
  • Varies by trade lane and vessel efficiency
  • Also called: FAF, EBS, BUC

LSS (Low Sulfur Surcharge)

  • Covers IMO 2020 compliant fuel costs
  • Required for vessels using low-sulfur fuel
  • Sometimes merged into BAF

Currency Surcharges

CAF (Currency Adjustment Factor)

  • Hedges against USD exchange rate volatility
  • Percentage of base rate (typically 0-10%)
  • Adjusted quarterly by carriers
  • Varies by trade lane

Terminal Handling Charges

THC (Terminal Handling Charge)

  • Charged at origin AND destination
  • Covers loading/unloading at port terminals
  • Fixed per container regardless of route
  • Significant cost (often $200-$500 per container)

CFS (Container Freight Station)

  • Handling fee for LCL cargo
  • Covers consolidation/deconsolidation
  • Charged per CBM or per shipment

Security Surcharges

ISPS (International Ship and Port Security)

  • Covers ISPS Code compliance
  • Small fixed fee per container
  • Applies at secure ports globally

AMS/ENS/ACI Fees

  • Cargo manifest filing fees
  • AMS: US (Automated Manifest System)
  • ENS: EU (Entry Summary Declaration)
  • ACI: Canada (Advance Commercial Information)
  • Typically $25-$50 per bill of lading

Peak Season Surcharges

PSS (Peak Season Surcharge)

  • Applied during high-demand periods
  • Pre-Chinese New Year, pre-Christmas
  • Can be $300-$1,500+ per container
  • Announced with advance notice

GRI (General Rate Increase)

  • Periodic base rate increases
  • Announced monthly or quarterly
  • Reflects capacity/demand balance

Route-Specific Surcharges

  • Panama Canal Surcharge: Drought-driven capacity fees
  • Suez Canal Surcharge: Transit fees and disruption costs
  • War Risk Surcharge: High-risk zone premium (Red Sea, etc.)
  • Arctic Sea Ice: Seasonal routing premiums

Destination Charges

DOC (Documentation Fee)

  • Bill of lading issuance
  • Fixed per shipment

DO (Delivery Order) Fee

  • Release of cargo at destination
  • Paid by consignee

Demurrage and Detention

  • Demurrage: Container in port beyond free days
  • Detention: Container off-port beyond free days
  • Can reach $200-$400/day per container

All-In Rate Comparison

When comparing quotes, always calculate the all-in rate:

  1. Add base ocean rate
  2. Add BAF, CAF, LSS
  3. Add origin and destination THC
  4. Add documentation and security fees
  5. Include peak season surcharges if applicable

Low base rate quotes often disguise higher total costs through unbundled surcharges. Request "all-in" quotes for apples-to-apples comparison.

Negotiating with Carriers

  • High-volume shippers can negotiate caps on BAF
  • Annual contracts lock in THC and base rates
  • Some surcharges non-negotiable (government fees)
  • FAK (freight all kinds) rates can simplify billing
Gateway Team
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