Every few weeks, ocean carriers publish a notice that reads like routine business correspondence and quietly resets what every shipper on a lane pays. That notice is a General Rate Increase, or GRI, and it is one of the least understood line items in ocean freight — mostly because it isn't a line item at all. It's a change to the number every other charge is calculated from. This guide explains what a GRI actually is, why carriers issue them, how they differ from surcharges like PSS and BAF, and what a shipper can do to keep one from derailing a budget built on last quarter's rates.
What is a General Rate Increase (GRI)?
A General Rate Increase is a blanket increase to the base ocean freight rate that a carrier applies across some or all of the trade lanes it serves, effective on a set date. Unlike a surcharge, a GRI does not appear as its own invoice line — it changes the underlying rate itself, so every quote issued after the effective date reflects the new, higher base.
Carriers issue GRIs unilaterally and announce them in advance, typically through a rate circular sent to freight forwarders and posted to their own tariff pages. The announcement states the amount (usually per container for FCL, per revenue tonne or CBM for LCL) and the effective date. Because a GRI resets the base rate rather than adding a surcharge, its effect compounds with every other charge calculated as a percentage of freight — though most ocean quote components, like BAF and THC, are flat or weight-based rather than freight-percentage-based, so the direct compounding is more limited than shippers sometimes assume.
Why do carriers issue a GRI?
Carriers issue a GRI to reset freight rates upward when they judge that prevailing spot rates have fallen below a sustainable floor, or when tightening vessel capacity gives them room to push rates higher. It is a blunt, market-wide instrument — applied to a trade lane as a whole, not negotiated shipment by shipment, which is what distinguishes it from contract repricing.
A few conditions typically precede a GRI announcement:
- Rates have drifted down. After a period of soft demand or overcapacity, spot rates on a lane can fall to levels carriers consider unprofitable. A GRI is the mechanism to reset the floor.
- Capacity is tightening. Blank sailings, vessel deployment changes, or a demand uptick can shift the balance of power toward carriers, who then test how much of an increase the market will absorb.
- Alliance-wide signaling. On major lanes, multiple carriers in the same vessel-sharing alliance often announce GRIs within days of each other. This is publicly filed, independent rate-setting behavior by each carrier rather than coordinated pricing — but the practical effect for a shipper is that alternative carriers on the same lane rarely offer an escape from a GRI cycle.
Not every announced GRI fully sticks. Carriers sometimes publish a GRI and only partially achieve it once bookings come in, especially if a competitor doesn't follow. Shippers who track actual booked rates, not just announcements, get a truer read on what a GRI will really cost.
GRI versus other rate components
Shippers frequently see a GRI announcement land in the same week as a Peak Season Surcharge or bunker adjustment update, and the three get blended together in conversation even though they behave differently on an invoice.
| GRI | PSS | BAF | |
|---|---|---|---|
| What it changes | The base freight rate itself | A separate, named surcharge line | A separate, named surcharge line |
| Trigger | Carrier judges the rate floor needs resetting | Seasonal demand peak | Bunker fuel cost movement |
| Duration | Persists until the next market correction | Lifted when peak demand eases | Adjusts periodically with fuel prices |
| Visibility on invoice | Embedded in the base rate, not itemized | Itemized as its own charge | Itemized as its own charge |
A GRI can land on top of an active PSS, particularly heading into peak season, in which case a shipper absorbs both a higher base rate and a peak surcharge in the same booking. Reading a quote's origin, freight, and destination sections line by line — rather than only checking the all-in total — is the only reliable way to see whether a GRI has already been folded into the number in front of you.
When do GRIs typically happen?
GRIs are not seasonal in the way PSS is. Carriers can announce one at any point in the year, though clusters of GRI activity tend to follow predictable market pressure points: ahead of peak season on transpacific and Asia–Europe lanes, after Lunar New Year production restarts, and during periods of broad overcapacity when carriers are trying to defend margins. Effective dates are usually set two to four weeks after the announcement, giving shippers a short window to book at the pre-increase rate before it takes hold.
Because GRIs are lane-specific, a shipper moving cargo on multiple corridors — say, both a transpacific route like Shanghai to Los Angeles and an intra-Asia lane — may see a GRI hit one lane and not the other in the same month.
How much does a GRI actually add?
The dollar amount of any given GRI varies by carrier, lane, equipment type, and prevailing market conditions — there is no fixed or typical figure, and treating one year's number as a benchmark for the next is a common budgeting mistake. What is consistent is the mechanism: the increase applies to the base rate for every new booking made after the effective date, regardless of contract length, unless a service contract specifically caps or excludes GRI pass-through.
A few things worth checking before a GRI cycle starts:
- Contract language. Long-term service contracts sometimes include GRI caps or exclude GRI pass-through entirely — but only if that language was negotiated up front. Spot bookings have no such protection.
- All-in versus base-rate quotes. A quote pulled before a GRI's effective date can look artificially attractive next to one pulled after, even for the same lane and equipment. Compare quotes by booking date, not by the date you happen to be reading them.
- FCL and LCL both move. GRIs apply to both full-container and less-than-container shipments, though the mechanics differ — FCL by the container, LCL typically by weight or measure. Re-running your FCL versus LCL cost comparison after a GRI takes effect can shift which mode is cheaper for a given shipment size.
Four ways to plan around a GRI
1. Book ahead of the effective date, not after the announcement fades from your inbox. The pre-increase window is typically two to four weeks. Space fills as other shippers rush to lock in the current rate, so early action matters as much as the date itself.
2. Track circulars for every carrier on your lane, not just your primary one. Because GRIs often move across an alliance within days of each other, watching a single carrier gives an incomplete picture of where rates on a lane are actually heading.
3. Separate the base rate from surcharges when you compare quotes. A quote that bundles GRI into an unlabeled all-in number is harder to audit than one that itemizes freight, surcharges, and handling separately across origin, freight, and destination sections.
4. Re-check your cargo dimensions before rebooking. A GRI changes the per-container or per-CBM rate, which can shift the economics of consolidating a partial load. The free cargo calculator computes your CBM, gross weight, and chargeable weight from carton or pallet dimensions, which is the starting point for re-running that comparison.
How Holo Cargo helps
Holo Cargo's quotes pull from live carrier rate data, so a GRI that has taken effect shows up in your quoted base rate rather than as a surprise on the final invoice — what we quote is what you pay. Real operators own every shipment and watch the lanes our customers ship on, so a rate change is something you hear from us rather than something you discover on an invoice. You can read more about how our AI-assisted quoting keeps rate data current.
