Ocean Freight Surcharges Explained for Miami Importers: GRI, BAF, PSS (2026)

Ocean freight surcharges are the extra fees ocean carriers add on top of the base freight rate — items like GRI, BAF, and PSS that can swing the landed cost of a Miami-bound container by hundreds of dollars. Understanding what each surcharge covers, and which ones are negotiable, is the fastest way to make sense of a confusing ocean quote. Here is a plain-English 2026 guide for Miami importers.

Why your ocean quote is never just one number

An ocean freight quote has a base rate plus a stack of surcharges, each with its own acronym. Some float with fuel markets, some are seasonal, and some are one-time adjustments carriers announce with 30 days notice. When comparing quotes into PortMiami or Port Everglades, always compare the all-in figure, not the base rate.

The major surcharges, decoded

GRI — General Rate Increase

A GRI is a broad increase carriers announce on a trade lane, often at the start of a month. GRIs frequently get postponed or only partially stick when demand is soft, which is why booking timing matters. Ask your forwarder whether an announced GRI has actually held before accepting a higher rate.

BAF — Bunker Adjustment Factor

BAF passes through vessel fuel costs and floats with marine fuel prices. Since the low-sulfur fuel rules took effect, many carriers quote a separate low-sulfur component as well. BAF is formula-driven, so it is rarely negotiable — but you can ask how it is calculated.

PSS — Peak Season Surcharge

PSS appears when demand spikes, historically in the run-up to the fourth quarter. On Latin American and Caribbean lanes serving Miami, peak timing can differ from the Asia trades, tracking produce seasons and holiday export cycles. Planning around peaks is a core part of peak season freight planning in Florida.

THC — Terminal Handling Charges

THC covers loading and unloading the container at origin and destination terminals. It is charged at both ends and varies by port.

Documentation, seals, and security fees

Bill of lading fees, seal fees, AMS/security filing fees, and telex release fees are smaller line items that still add up — often well over one hundred dollars per shipment when combined.

Congestion and emergency surcharges

Carriers can impose temporary surcharges for port congestion, canal restrictions, or emergency operating conditions. These come and go with notice periods, so a quote valid today may change before your cargo ships.

Surcharges do not stop at the terminal

Once the container discharges, a second family of charges begins: demurrage inside the terminal and detention (per diem) on the container outside it. Those are covered in our PortMiami demurrage and detention guide. Insurance is a separate decision entirely — see cargo insurance vs carrier liability. And before the vessel even sails, make sure your ISF 10+2 filing is on time to avoid penalties that dwarf most surcharges.

How Miami importers can control surcharge costs

• Get all-in quotes. Require every surcharge itemized in writing, with validity dates.
• Watch GRI calendars. Booking a week earlier or later around an announced GRI can change your rate meaningfully.
• Move fast at destination. Fast drayage and unloading keep you out of demurrage and detention, which are the most controllable charges on the list.
• Work with one accountable partner. A freight forwarding partner that also runs its own trucks and warehouses in Miami can compress the handoffs where surcharges accumulate.

Frequently asked questions

Are ocean freight surcharges negotiable?

Some are. GRIs and PSS often soften with market conditions, and documentation fees vary between forwarders. Formula-based charges like BAF and THC are generally fixed pass-throughs.

Why did my quote change between booking and sailing?

Most ocean quotes are valid for a limited window, and carriers can implement announced surcharges with notice. If cargo ships after a GRI or PSS effective date, the new charge can apply.

What is the difference between demurrage and detention?

Demurrage applies while the container sits inside the terminal past free time; detention (per diem) applies to the container itself once it leaves the terminal until the empty is returned.

Want an all-in number you can actually budget against? Go Freight quotes ocean, drayage, and warehousing together from our Miami hub. Get a freight quote or call (786) 445-0150.