Passing Carrier Surcharges Through to Customers: A Forwarder Guide

A carrier surcharge or general rate increase (GRI) is a cost the line adds on top of its base rate, and it can change between the day you quote a customer and the day the cargo sails. The forwarder's job is to decide in advance who carries that movement: you quote it in, you quote it separately and say it may change, or you absorb it. The safest default is to show known surcharges as named lines in the quote, state which ones can still change, tie both to a validity date, and keep the carrier's own notice on file so any pass-through can be shown at cost. This guide covers the quoting choices, the wording, what the US Federal Maritime Commission (FMC) rules say about notice, and what to do when a surcharge arrives late. For what each surcharge actually is, see Freight Surcharges Decoded.

All-in or base plus surcharges: which should you quote?

There are two honest ways to put a carrier cost in front of a customer, and a hybrid that most forwarders end up using.

• All-in quote. One number per container or per kilo that already includes every surcharge known on the quote date. It is easy to compare and easy to accept. The risk is yours: if the carrier adds something before shipment and your wording does not allow you to pass it on, you absorb it. An all-in quote therefore needs a short, specific clause about what can still change and a firm validity date.
• Base plus surcharges. The ocean or air rate on one line and each surcharge on its own line, labelled with the carrier's name for it. It is more transparent and makes a late change easy to explain, because the customer can see which line moved. The cost is that it looks more expensive next to an all-in competitor until the customer adds the lines up.
• Hybrid. Quote an all-in total for what is known, then list the surcharges that are announced but not yet effective, or that depend on the sailing date, as separate "subject to" lines. This is usually the best fit for shippers who compare several quotes, because the headline number is complete and the open items are visible rather than hidden.

Whichever you pick, quote on the same basis every time. A customer who sees all-in from you one month and base-plus the next will assume the second is a price rise. How to set the number itself, including margin and overhead, is covered in How to Price a Freight Quote.

Which surcharges are known at quote time and which arrive later

The split matters because it tells you what can be quoted firm and what needs a "subject to" line. The pattern below is typical, not universal: carriers and trades differ, so check the carrier's current notice for each lane rather than assuming.

None of this means a surcharge is fixed once announced. Carriers revise, postpone and cancel announced increases. Treat an announcement as a reason to write the item into your quote, not as a guarantee of the amount.

How to word "subject to surcharges at time of shipment"

A vague clause is the most common reason a pass-through turns into an argument. "Rates subject to change" tells the customer nothing and invites the reply that you quoted a price. Write the clause so it answers three questions: which charges, what triggers them, and what you will show the customer if it happens.

All-in rate includes surcharges published by the carrier as of [date]. It is exclusive of any further carrier surcharge, GRI or emergency charge that becomes effective for the sailing before the cargo is loaded. If one applies, we will pass it on at the carrier's published amount without markup, and send you the carrier's notice with the revised invoice. Rates are valid for bookings confirmed by [date].

Three points make this work. Name the "as of" date so both sides know which surcharges are inside the price. Say "without markup" only if that is true (see the US rules below). And tie it to a validity date, because a surcharge clause with no end date turns a quote into an open-ended commitment. The mechanics of choosing and wording validity are in Freight Quote Validity.

What the US rules say about notice for NVOCC rate increases

If you operate as an NVOCC in US trades, the FMC's tariff rules apply to published rates. As of October 2026, the relevant text is in 46 CFR Part 520, and it is worth reading directly because forwarders often assume more flexibility than it gives.

• 30 days for increases. Under 46 CFR 520.8(a), a new rate or a change to a published rate that increases the shipper's cost cannot take effect earlier than 30 calendar days after publication. Deleting a specific commodity rate so that cargo falls into a higher general-cargo rate counts as an increase for this purpose. Decreases, and changes that do not raise the shipper's cost, can take effect on publication.
• Charges outside your control are different. Section 520.8(b) lets changes to charges that the carrier or terminal sets and you only collect (terminal services and canal tolls are the examples given) take effect on publication. The same section says ocean common carriers and NVOCCs must not mark those charges up above cost.
• Cross-referencing carrier surcharges. Section 520.7(a)(3)(iv) lets an NVOCC refer to an ocean carrier's published surcharges, assessorial charges and GRIs in its own tariff, provided it lists them by name or category and does not add a markup. Any service fee of your own has to be shown separately.
• Which rate applies. Under 46 CFR 520.7(c), the rates, charges and rules that govern a shipment are those in effect on the date the cargo is received. A rate increase that is not yet effective on that date does not apply to that shipment.

Two limits on this. First, the tariff rules cover published tariff rates. Negotiated rate arrangements (NRAs) under 46 CFR Part 532 are exempt from tariff publication, so the 30-day clock does not govern them. What governs is the written arrangement itself: the NRA must be agreed before the NVOCC receives the cargo, may be amended later only for shipments not yet received, and it may list surcharges directly or point to the NVOCC's rules tariff. Where it leaves a pass-through charge's amount open, the NVOCC may bill only its actual cost without markup (46 CFR 532.5). Second, This guide did not identify a separate advance-notice rule for carrier service contracts; the contract's own terms control, so read the amendment and surcharge clauses before you rely on them. For how tariffs, NRAs and service arrangements fit together, see NVOCC Tariffs, NRAs and NSAs.

These rules bind a US NVOCC's published and negotiated rates. They are not a general rule for every forwarder in every country, and EU or other jurisdictions are not covered here because no primary source was confirmed for them. If you quote outside US trades, check the rules in the jurisdiction and the terms of your own trading conditions.

Absorb it or pass it on?

Passing a surcharge through is the default, but it is a commercial decision, not an obligation to be cold about. Weigh these before you decide.

• What your wording allows. If the quote did not reserve the right to pass on a late charge, expect resistance and consider absorbing a small one rather than fighting over it.
• Size against margin. A small amount on a long-standing customer is often cheaper to absorb than the relationship cost of an argument. A large one on a thin-margin lane is not.
• Whether the cargo is already moving. A surcharge announced after booking but effective before loading is different from one that takes effect after the cargo is received. Check the effective date against the date the carrier received the cargo, not the date you booked.
• What competitors in the same tender did. If every quote carried the same open "subject to" line, passing it on is normal. If yours was the only all-in number, you may have to absorb it to keep your word.

Whatever you choose, decide once and record it. Absorbing the same type of charge for one customer and billing it to another invites exactly the question you do not want to answer.

Document the carrier notice before you pass anything on

A pass-through is only defensible if you can show the cost is real, current and applied at the carrier's amount. Build the evidence file when the notice arrives, not when the customer queries the invoice.

• Save the carrier's notice or the page it was published on, with the date you received it and its stated effective date.
• Note the trade, the container type or weight basis, and the amount the notice sets, so you can match it to the invoice line.
• Record the date the carrier received the cargo and the sailing date, so you can show which side of the effective date each shipment fell on.
• Keep your own message to the customer and their reply. A written acknowledgement settles most later disputes.
• If you are a US NVOCC using NRAs, keep the originals. 46 CFR 532.7 requires NRA records to be kept for five years from completion of performance and produced promptly on request.

Retroactive surcharges and how to dispute them

Sometimes a line bills a charge after the cargo has moved, or applies an increase to a booking made before its announcement. Do not pass that on to your customer until you have checked it.

1. Compare dates. Find the effective date in the notice and the date the carrier received the cargo or issued the booking confirmation. If the charge is effective after those dates, it may not apply. For NVOCC tariff cargo in US trades the test in 46 CFR 520.7(c) is the date the cargo is received.
2. Check the contract or tariff. Look for a surcharge or amendment clause that allows the charge, and for any required notice period. If you have a service contract, its terms decide.
3. Challenge in writing. Send the carrier the booking reference, the invoice line, the dates and the clause you rely on, and ask for the charge to be withdrawn or the basis shown. Keep it factual and short.
4. Hold the customer position. Tell the customer a charge is under query. Do not invoice it as final if you are disputing it, and do not pay it silently and bill it on.
5. Settle or escalate. If the carrier will not move, decide whether the amount justifies a formal claim, and whether your trading terms let you recover it from the customer.

The same approach applies to emergency and war risk charges, where the notice period is often short and the effective date matters most. The reading checklist in War Risk and Emergency Surcharges applies equally from the forwarder's side.

Keeping the customer relationship intact

Most customers accept a surcharge they can see and check. They object to ones they cannot explain to their own finance team.

• Put a surcharge table in the quote. List each charge, whether it is included, and whether it can still change. Customers who compare several quotes will read it.
• Warn early, not at invoice. When a notice is published that could affect their booking, tell them the day you see it, with the effective date and your estimate of the impact marked as an estimate.
• Show it at cost. If you promised a pass-through without markup, put the carrier's notice next to the invoice line.
• Be consistent. Use the carrier's names for charges, and use the same table layout on every quote.
• Do not hide margin inside a surcharge. Labelling your own fee as a carrier surcharge is the quickest way to lose a customer, and for a US NVOCC it runs against the no-markup rules above.

What to do next

1. Rewrite your quote template with a surcharge table: charge, included or not, can it change, and the as-of date.
2. Replace any "rates subject to change" line with a specific clause that names the charges, the pass-through basis and the validity date.
3. Set up a notice file for every carrier you use, so each surcharge announcement is saved with its date and effective date as it arrives.
4. If you act as a US NVOCC, check your tariff and NRA terms against 46 CFR 520.7, 520.8 and Part 532, and confirm with counsel before you rely on any pass-through you have not tested.

If you are looking for another forwarder or agent to cover a lane where surcharge exposure is hard to manage alone, more than 29,300 logistics companies are searchable by country and service in the CargoLinked directory. The public requests board lists freight that shippers have posted for forwarders to quote on directly, which is a practical place to test a surcharge table in a live quote.

This article is general information, not legal, tax, financial or customs advice. Regulations change and apply differently by trade and by role. Confirm current requirements with the Federal Maritime Commission or the relevant issuing authority, or with a licensed professional, before relying on them.