An ocean freight rate increase after you’ve already booked is one of the most frustrating surprises in shipping. You’ve booked the space. You’ve got the confirmation. Then a week later, the carrier or forwarder tells you the rate went up. Do you have to pay?
The short answer: it depends on how your booking was confirmed and what the fine print says.
What Causes an Ocean Freight Rate Increase After Booking?
If you only received a verbal quote over the phone or WeChat, with no written booking confirmation, then an ocean freight rate increase is basically on you. A verbal quote is just a reference number, not a locked-in price.
In the industry, this is a common pitfall. Without a written booking confirmation or a formal quotation with a validity period, the carrier or forwarder can adjust the rate at any time based on market conditions.
With a Booking Confirmation (S/O), the Rate Is Usually Locked
Once you receive a Shipping Order (S/O) — the official booking confirmation — the rate is generally locked. Maersk’s Spot Booking terms explicitly state: “Rates provided are not subject to change after the booking confirmation has been received.”
In practice, this means that after you get the S/O, the carrier cannot unilaterally raise the base ocean freight rate. Even if market rates spike afterward, your rate should be honored.
When an Ocean Freight Rate Increase Can Still Happen
Here’s where it gets tricky. Some booking confirmations include a clause like “freight rate based on sailing date” or “valid as of time of shipping” (often called VATOS).
This means the rate is not locked at the time of booking, but at the time the vessel actually sails. If the carrier announces a General Rate Increase (GRI) between your booking date and the sailing date, the new rate may apply — even though you booked earlier. That’s how an ocean freight rate increase can still catch you off guard.
Some carriers, like Hapag-Lloyd, apply different rules for different trade lanes. For US and Canada trade, the applicable rate is the one in effect on the date the last container enters the terminal. For other trades, it’s the rate at the vessel departure date on your first booking confirmation.
The lesson: read the rate validity terms carefully. “Locked” doesn’t always mean locked until delivery.
Surcharges Are Often Not Locked
Even if your base ocean freight rate is locked, additional surcharges may not be. Common surcharges like BAF (Bunker Adjustment Factor), CAF (Currency Adjustment Factor), peak season surcharges, and congestion fees are often adjusted separately and may not be included in your locked rate.
If you want full protection, you need to confirm whether your booking covers all surcharges or only the base freight.
How to Protect Yourself from an Ocean Freight Rate Increase
The safest approach is to ask your forwarder to include a “rate locked” clause in the booking confirmation. This should specify:
The base ocean freight rate is fixed
Which surcharges are included
The rate is valid from booking through vessel departure
No unilateral rate adjustments will be applied
Maersk’s Spot Booking terms confirm that once you receive the booking confirmation, the rate cannot be changed, except in specific situations like late shipping instructions or incorrect cargo details.
Get it in writing. A verbal promise doesn’t hold up when the market moves.
What If the Carrier Still Tries to Raise the Rate?
If you have a written booking confirmation with a locked rate and the carrier still tries to charge more, you have grounds to push back. Document everything: the original booking confirmation, the quoted rate, and any communication about the increase.
Under US regulations, carriers must file General Rate Increases with the Federal Maritime Commission (FMC) at least 30 days before they take effect. If a rate increase violates the terms of your confirmed booking, you may have grounds for a complaint.
The Bottom Line on Ocean Freight Rate Increase After Booking
Verbal quote only? The rate can change.
Got an S/O? The rate is usually locked, but check the terms.
“Rate as of sailing date” clause? The rate may change if a GRI kicks in before departure.
Want full protection? Ask for a written rate lock that covers base freight and surcharges.
Don’t assume “booked” means “locked.” Read the confirmation, ask the right questions, and get it in writing.
FAQ:
Q1: I have a Shipping Order (S/O). Is my rate locked? A: Usually, yes. Once you receive the S/O, the rate is generally locked, and the carrier cannot unilaterally raise the base ocean freight. Maersk’s Spot Booking terms confirm this. But always check the fine print.
Q2: What does “rate as of sailing date” mean? A: It means the rate is not locked at the time of booking, but at the time the vessel actually sails. If a General Rate Increase (GRI) happens between booking and departure, the new rate may apply. This is often called VATOS.
Q3: Are surcharges also locked? A: Not always. Your base ocean freight may be locked, but surcharges like BAF, CAF, peak season surcharges, and congestion fees are often adjusted separately. Confirm with your forwarder whether surcharges are included in the locked rate.
Q4: How can I make sure my rate won’t change? A: Ask your forwarder to include a “rate locked” clause in the booking confirmation. It should state that the base freight is fixed, which surcharges are included, and that the rate is valid from booking through vessel departure. Get it in writing.
Watch our related video guide below for a quick visual breakdown of ocean freight rate increases after booking, how to read your booking confirmation, and the 3 things to check to lock in your rate — and how to avoid unexpected surcharges.
Add WhatsApp to get free assistance with supplier qualification reviews.
Expert Contributor
Colton
CEO & Founder of Presou
Colton is a veteran in the logistics industry with over 10 years of experience. He leads Presou and its subsidiary Shenzhen Dayuanjun, focusing exclusively on heavy cargo solutions (>200kg/2CBM) across major Chinese ports to the USA, UAE, and Nigeria.
Can a Carrier Raise Your Freight Rate After Booking?
Table of Contents
An ocean freight rate increase after you’ve already booked is one of the most frustrating surprises in shipping. You’ve booked the space. You’ve got the confirmation. Then a week later, the carrier or forwarder tells you the rate went up. Do you have to pay?
The short answer: it depends on how your booking was confirmed and what the fine print says.
What Causes an Ocean Freight Rate Increase After Booking?
If you only received a verbal quote over the phone or WeChat, with no written booking confirmation, then an ocean freight rate increase is basically on you. A verbal quote is just a reference number, not a locked-in price.
In the industry, this is a common pitfall. Without a written booking confirmation or a formal quotation with a validity period, the carrier or forwarder can adjust the rate at any time based on market conditions.
With a Booking Confirmation (S/O), the Rate Is Usually Locked
Once you receive a Shipping Order (S/O) — the official booking confirmation — the rate is generally locked. Maersk’s Spot Booking terms explicitly state: “Rates provided are not subject to change after the booking confirmation has been received.”
In practice, this means that after you get the S/O, the carrier cannot unilaterally raise the base ocean freight rate. Even if market rates spike afterward, your rate should be honored.
When an Ocean Freight Rate Increase Can Still Happen
Here’s where it gets tricky. Some booking confirmations include a clause like “freight rate based on sailing date” or “valid as of time of shipping” (often called VATOS).
This means the rate is not locked at the time of booking, but at the time the vessel actually sails. If the carrier announces a General Rate Increase (GRI) between your booking date and the sailing date, the new rate may apply — even though you booked earlier. That’s how an ocean freight rate increase can still catch you off guard.
Some carriers, like Hapag-Lloyd, apply different rules for different trade lanes. For US and Canada trade, the applicable rate is the one in effect on the date the last container enters the terminal. For other trades, it’s the rate at the vessel departure date on your first booking confirmation.
The lesson: read the rate validity terms carefully. “Locked” doesn’t always mean locked until delivery.
Surcharges Are Often Not Locked
Even if your base ocean freight rate is locked, additional surcharges may not be. Common surcharges like BAF (Bunker Adjustment Factor), CAF (Currency Adjustment Factor), peak season surcharges, and congestion fees are often adjusted separately and may not be included in your locked rate.
If you want full protection, you need to confirm whether your booking covers all surcharges or only the base freight.
How to Protect Yourself from an Ocean Freight Rate Increase
The safest approach is to ask your forwarder to include a “rate locked” clause in the booking confirmation. This should specify:
The base ocean freight rate is fixed
Which surcharges are included
The rate is valid from booking through vessel departure
No unilateral rate adjustments will be applied
Maersk’s Spot Booking terms confirm that once you receive the booking confirmation, the rate cannot be changed, except in specific situations like late shipping instructions or incorrect cargo details.
Get it in writing. A verbal promise doesn’t hold up when the market moves.
What If the Carrier Still Tries to Raise the Rate?
If you have a written booking confirmation with a locked rate and the carrier still tries to charge more, you have grounds to push back. Document everything: the original booking confirmation, the quoted rate, and any communication about the increase.
Under US regulations, carriers must file General Rate Increases with the Federal Maritime Commission (FMC) at least 30 days before they take effect. If a rate increase violates the terms of your confirmed booking, you may have grounds for a complaint.
The Bottom Line on Ocean Freight Rate Increase After Booking
Verbal quote only? The rate can change.
Got an S/O? The rate is usually locked, but check the terms.
“Rate as of sailing date” clause? The rate may change if a GRI kicks in before departure.
Want full protection? Ask for a written rate lock that covers base freight and surcharges.
Don’t assume “booked” means “locked.” Read the confirmation, ask the right questions, and get it in writing.
FAQ:
Q1: I have a Shipping Order (S/O). Is my rate locked?
A: Usually, yes. Once you receive the S/O, the rate is generally locked, and the carrier cannot unilaterally raise the base ocean freight. Maersk’s Spot Booking terms confirm this. But always check the fine print.
Q2: What does “rate as of sailing date” mean?
A: It means the rate is not locked at the time of booking, but at the time the vessel actually sails. If a General Rate Increase (GRI) happens between booking and departure, the new rate may apply. This is often called VATOS.
Q3: Are surcharges also locked?
A: Not always. Your base ocean freight may be locked, but surcharges like BAF, CAF, peak season surcharges, and congestion fees are often adjusted separately. Confirm with your forwarder whether surcharges are included in the locked rate.
Q4: How can I make sure my rate won’t change?
A: Ask your forwarder to include a “rate locked” clause in the booking confirmation. It should state that the base freight is fixed, which surcharges are included, and that the rate is valid from booking through vessel departure. Get it in writing.
Watch our related video guide below for a quick visual breakdown of ocean freight rate increases after booking, how to read your booking confirmation, and the 3 things to check to lock in your rate — and how to avoid unexpected surcharges.
https://youtube.com/shorts/6a4oOS0Nd-0?si=8d0X99hPyWIbU81_
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Add WhatsApp to get free assistance with supplier qualification reviews.
Colton
CEO & Founder of PresouColton is a veteran in the logistics industry with over 10 years of experience. He leads Presou and its subsidiary Shenzhen Dayuanjun, focusing exclusively on heavy cargo solutions (>200kg/2CBM) across major Chinese ports to the USA, UAE, and Nigeria.
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