In Q4 2026, ocean carriers typically stack four surcharge types on top of base rates: Bunker Adjustment Factor (BAF, fuel volatility pass through), General Rate Increase (GRI, standard mid quarter uplift), Peak Season Surcharge (PSS, capacity driven fee applied August through November), and Currency Adjustment Factor (CAF, USD volatility hedge). Air carriers layer their own per kilogram Peak Season Surcharge on Q4 cargo out of Asia, and parcel carriers (FedEx, UPS, DHL) add per package peak fees on the November to January holiday window. By the time the year closes, a shipper who did not budget the full stack can run 15 to 40 percent over plan on freight spend. This guide breaks each surcharge down with a plain English definition, the typical 2026 amount, when it hits, and how to cap it in your annual carrier RFP.
Key Takeaways
Definition
Peak Season Surcharge (PSS): A capacity driven fee ocean and air carriers add to base freight rates during the peak demand window (August through November for ocean trans-Pacific and Asia to Europe; September through January for air ex-Asia). PSS is one of four surcharges that typically stack on top of base rates in Q4, alongside BAF (fuel), GRI (mid quarter rate uplift), and CAF (currency hedge). Carriers announce PSS 30 to 60 days before effective date and can revise or cancel it based on real time capacity utilization.
Ocean carriers do not raise the base rate the way a parcel carrier raises a published tariff. They keep the base rate line stable in the contract and layer four separately announced surcharges on top. Each surcharge answers a different question, each hits at a different point in the quarter, and each is negotiated on its own line in the annual RFP.
| Surcharge | What it covers | Typical 2026 amount | Typical trigger | Announcement window |
|---|---|---|---|---|
| BAF (Bunker Adjustment Factor) | Fuel price volatility | $500 to $1,500 per TEU | VLSFO index move | Monthly or quarterly reset |
| GRI (General Rate Increase) | Base rate uplift | $500 to $1,200 per TEU | Mid quarter capacity tightening | 30 day carrier notice |
| PSS (Peak Season Surcharge) | Q4 capacity demand | $300 to $800 per TEU | August to November peak window | 30 to 60 day carrier notice |
| CAF (Currency Adjustment Factor) | USD volatility on non-USD trades | 3 to 8 percent of base | Local currency move against USD | Monthly reset on some lanes |
Amounts vary by lane. Trans-Pacific Eastbound and Asia to North Europe carry the highest surcharge stack in a Q4 peak year; intra-Asia and North-South trades typically sit at the low end of each range.
The Bunker Adjustment Factor is the surcharge ocean carriers use to pass through changes in fuel cost. Ocean vessels burn very low sulphur fuel oil (VLSFO) to comply with the IMO 2020 sulphur cap, and VLSFO prices move on the same commodity cycle as crude oil. Rather than repricing the base freight rate every time bunker fuel moves, carriers publish a BAF formula tied to a fuel index (Rotterdam, Singapore, or a blended benchmark) and reset the BAF line on a monthly or quarterly cadence.
Do not try to cap BAF in your RFP. Fuel is a genuine pass through and a hard BAF cap either loses you the bid or trips a force majeure clause when fuel spikes. Instead, negotiate the formula transparency (which index, what base fuel price, what recovery ratio) and the reset cadence (monthly gives you predictable line items; quarterly smooths volatility but creates lag). The Freight Rate RFP Playbook section on fuel clauses covers the standard formula language.
A General Rate Increase is a base rate uplift the carrier applies across a trade lane, usually mid quarter, when capacity tightens ahead of a demand event or contract renewal. Unlike BAF, a GRI is not tied to a formula. The carrier prices it against market conditions, files it under the applicable tariff, and gives 30 days notice.
Two questions that get conflated. A GRI is a base rate uplift the carrier keeps whether the market is at peak or not; it stays on the tariff after peak ends. A PSS is a peak season only fee tied to the August to November window and comes off the rate structure when peak ends. Both can hit in the same month.
The Peak Season Surcharge is the capacity fee ocean and air carriers add during the highest demand window of the year. On ocean, that window is roughly August 1 through November 30 for trans-Pacific and Asia to Europe cargo (front loading of Q4 retail inventory). On air, the window opens in September and runs into January (holiday e-commerce plus Lunar New Year pre build).
The typical ocean PSS calendar for a Q4:
Parcel carriers (FedEx, UPS, DHL) publish per package peak surcharges each August for the November through January holiday window. These are NOT ocean or air PSS. Typical 2026 parcel PSS ranges:
| Carrier | Service | 2026 peak fee range |
|---|---|---|
| FedEx | Ground / Home Delivery | $1.40 to $7+ per package |
| FedEx | Additional Handling | $7 to $9 per package |
| FedEx | Oversize | $60 to $80+ per package |
| UPS | Ground Residential | $1.50 to $7+ per package |
| UPS | Additional Handling | $6 to $8 per package |
| UPS | Large Package | $55 to $75+ per package |
Parcel peak fees are tiered by weekly package volume vs a shipper's baseline; the highest per package numbers hit shippers whose peak week volume runs 200 percent or more over baseline.
The Currency Adjustment Factor is a percentage add-on ocean carriers apply on trades priced in a currency other than USD (or on trades where operating costs land in a currency other than the rating currency). CAF hedges the carrier against the difference between the rating currency and the currency the carrier actually spends. It shows up most often on Europe to Asia, intra-Europe, and intra-Asia trades priced in EUR, JPY, or GBP.
Both are pass throughs. BAF passes through fuel cost changes; CAF passes through currency exchange rate changes. On a Euro denominated Asia to North Europe contract you can see both lines on the same invoice.
The current Q4 2026 announcement window on trans-Pacific and Asia to Europe follows the typical pattern: BAF resets on the monthly cadence, GRI events land at the start of September, October, and November, and PSS runs from early August through November 30 on trans-Pacific Eastbound.
Carrier announcement timing (CMA CGM, MSC, Maersk, Hapag-Lloyd, ONE, Evergreen, COSCO). In prior peak years the alliance carriers have moved within a few days of each other; the exact 2026 Q4 announcement dates for each carrier should be pulled from the tariff pages of your contracted lines and cross referenced against your Rate Management system before this line goes live.
The variables that will shape the final 2026 Q4 landscape:
Under US Federal Maritime Commission (FMC) tariff filing rules, ocean carriers on US trades must file rate and surcharge changes with the FMC and publish them in the carrier tariff at least 30 days before the effective date. Most carriers use this rule as the standard announcement cadence globally, even on trades where FMC filing does not apply.
What this means for a Q4 budget calendar:
Set a recurring calendar reminder for the 1st and 15th of each month in the peak window to pull the current tariff from each contracted carrier. Spot rate NVOCCs and freight forwarders often announce with less notice than the alliance carriers; a 14 to 21 day window is common on spot business.
Freight forwarders and shipper procurement teams that model the surcharge stack cleanly avoid the 15 to 40 percent Q4 budget miss. The three step model:
Step 1: Build the base rate line. Pull the contracted base rate from your Rate Management system for each lane, container size, and commodity. This is the number in your annual RFP award.
Step 2: Layer the four surcharges as separate lines. For each lane in your Q4 forecast, add:
Step 3: Run a low and high scenario. Low scenario: soft market, half realization on GRI and PSS. High scenario: peak market, full realization plus one additional GRI event you have not seen announced yet. The gap between low and high is your Q4 budget contingency.
Where a Transportation Management System helps: the surcharge tracking has to happen at the shipment level so you can reconcile the carrier invoice against the tariff. Manual reconciliation on a spreadsheet works up to a few hundred shipments a month; above that you need a system that ingests the tariff, applies it to each shipment, and flags variances. GoFreight's Rate Management and Quoting module holds the tariff, the surcharge lines, and the shipment level application in one place.
The leverage window for surcharge caps is the annual RFP, not the middle of Q4. Once a PSS or GRI is announced and effective, the carrier has almost no reason to negotiate a cap on a signed contract. In the RFP cycle, the carrier is competing for volume commitment and will accept structural clauses that limit surcharge exposure in exchange for the award.
The five clauses to negotiate:
The full 7 week process for running the tender is in the Freight Rate RFP Playbook, including the section on which clauses matter most to a mid market forwarder book vs an enterprise BCO book.
Air carrier PSS on Q4 cargo out of Asia typically runs $0.30 to $1.20 per kilogram, with the highest per kilogram amounts on Hong Kong, Shanghai, and Guangzhou origin lanes when belly capacity tightens against pre holiday e-commerce demand. The 2026 air peak window opens in mid September and runs into January to cover Lunar New Year pre build.
The main air carriers announcing peak surcharges on Asia origin cargo include Cathay Cargo, Korean Air Cargo, Emirates SkyCargo, Lufthansa Cargo, Qatar Airways Cargo, FedEx, and UPS. Freighter capacity has recovered from the pandemic era distortions, but the underlying tightness on Hong Kong and Shanghai belly capacity keeps the PSS structure in place through the Q4 window.
The surcharge stack is billed on the ocean freight invoice under the Incoterm the contract names. Under FOB, the buyer pays the ocean freight and every surcharge on it. Under CIF or CFR, the seller pays the ocean freight and every surcharge on it (but the buyer still pays every cost after arrival at the destination port). Under DDP, the seller pays every cost including the surcharge stack.
Freight forwarders and NVOCCs pass surcharges through to the shipper of record on the master bill of lading. A house bill of lading customer sees the NVOCC's blended rate, which may or may not itemize the underlying surcharge lines depending on the NVOCC's disclosure policy. Ask for a fully itemized rate sheet from any NVOCC that quotes a blended all-in.
The two operating questions for any forwarder or shipper going into a Q4 peak:
Watch out
Model both. The forwarders who miss Q4 budget are the ones who forecast a single point number and treat the surcharge announcement calendar as noise instead of scheduled input.
A Peak Season Surcharge (PSS) is a capacity fee ocean and air carriers add to base freight rates during the highest demand window of the year (August through November for ocean; September through January for air). It sits on top of the base rate as a separate line and is negotiated separately in the annual RFP. Typical 2026 amounts: $300 to $800 per FEU on ocean trans-Pacific and Asia to Europe, and $0.30 to $1.20 per kilogram on air ex-Asia.
BAF stands for Bunker Adjustment Factor. It is the surcharge ocean carriers use to pass through changes in fuel cost. Ocean vessels burn very low sulphur fuel oil (VLSFO) to comply with the IMO 2020 sulphur cap, and BAF resets on a monthly or quarterly cadence tied to a published fuel index. Typical 2026 range: $500 to $1,500 per TEU on major trades.
GRI stands for General Rate Increase. It is a base rate uplift the carrier applies across a trade lane, usually mid quarter, when capacity tightens ahead of a demand event or contract renewal. Typical 2026 range: $500 to $1,200 per TEU per event, with two to four GRI events in a typical calendar year on trans-Pacific Eastbound.
CAF (Currency Adjustment Factor) typically runs 3 to 8 percent of the base rate on trades subject to it. CAF is applied on lanes priced in a currency other than USD (most often Europe to Asia, intra-Europe, and intra-Asia trades priced in EUR, JPY, or GBP). Most trans-Pacific Eastbound contracts are fully USD priced and do not carry a CAF line.
A GRI is a base rate uplift the carrier keeps in the tariff whether the market is at peak or not; it stays on the rate structure after peak ends. A PSS is a peak season only fee tied to the August to November window and comes off the rate structure when peak ends. Both surcharges can hit in the same month during Q4 and are billed on separate invoice lines.
Ocean carriers on US trades must file surcharge changes with the Federal Maritime Commission (FMC) and publish them in the carrier tariff at least 30 days before the effective date. Most carriers use this 30 day rule as the standard announcement cadence globally. NVOCCs and spot rate providers often announce with 14 to 21 days notice. Negotiate a 45 or 60 day contractual notice in your annual RFP.
Yes. The annual RFP is the leverage window. Carriers competing for a volume commitment will accept a hard dollar cap on total PSS per FEU per year, or a cap on the number of PSS events per year, in exchange for the award. Once PSS is announced and effective in season, the carrier has almost no reason to negotiate a cap on a signed contract. The Freight Rate RFP Playbook covers the standard cap clause language.
The typical 2026 Q4 ocean PSS calendar: first PSS effective on trans-Pacific Eastbound August 1 as retail front loading kicks in; second PSS wave on Asia to Europe September 15; PSS peak October through November 30 layered with any additional GRI events; PSS typically comes off December 1 or 15, but a strong Lunar New Year pre build can hold it through January. Exact dates vary by carrier and appear on the tariff 30 days before effective.
Parcel carriers (FedEx, UPS, DHL) publish per package peak surcharges each August for the November through January holiday window. FedEx Ground/Home Delivery peak fees run $1.40 to $7+ per package for 2026, plus $7 to $9 for additional handling and $60 to $80+ for oversize. UPS runs a similar structure. Parcel peak fees are tiered by weekly package volume vs the shipper's baseline; the highest per package numbers hit shippers whose peak week volume runs 200 percent or more over baseline.
Forwarders model Q4 in three steps: build the base rate line from the annual RFP award, layer the four ocean surcharges (BAF, GRI, PSS, CAF) as separate lines with a realization factor for GRI and PSS, and run a low vs high scenario. Low: soft market, half realization on GRI and PSS. High: peak market, full realization plus one unannounced GRI event. The gap between low and high is the Q4 budget contingency. A Transportation Management System with rate and surcharge tracking at the shipment level replaces spreadsheet reconciliation above a few hundred shipments per month.
Ready to move faster on Q4 rate reviews and 2027 tenders? GoFreight's Rate Management and Quoting module holds every carrier tariff, applies surcharges at the shipment level, and reconciles the carrier invoice against the tariff automatically. Book a demo to see how forwarders cut Q4 budget variance and quote turnaround at the same time.
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