Empty Container Return: Where Free Time Leaks

Under Brazil’s ANTAQ Normative Resolution 18, container free time on imports starts the day after the vessel discharges. Seven days for dry containers, five for reefers. The importer and freight forwarder have that window to register cargo presence at the terminal, clear customs, move the container inland, destuff it, and return it empty to the carrier’s designated depot. Five steps, five different responsible parties, one shared clock. Miss the deadline, and the carrier bills detention per day in US dollars, with no statutory cap in Brazil.

If you manage operations at a freight forwarder, the empty container return is the last step of an FCL import, but whether it goes smoothly depends on what happened at discharge. A previous post showed how terminal storage, demurrage, and detention run in parallel on the same cargo. This article walks through the operational sequence from discharge to return: where days disappear and what you can measure before the problem becomes a charge on your invoice.

From discharge to return, five steps share one deadline

Import container free time covers five steps. The vessel discharges and the terminal moves the container to the yard. The terminal operator registers cargo presence in Siscomex (Brazil’s foreign trade system), which lets customs clearance begin. Then comes clearance itself: risk channel assignment, inspection when required, and release by Brazil’s Federal Revenue Service (Receita Federal). After that, inland transport to the importer’s facility and destuffing. Finally, the empty container goes back to the carrier’s depot.

Each step belongs to a different party. Discharge and cargo presence sit with the terminal. Customs clearance depends on the customs broker and regulatory agencies. Transport and destuffing fall to the trucker and the importer. Depot return is on the trucker and the depot, which can reject the container. With seven days of free time for a dry container, each step takes one to three days depending on the port and how complicated the shipment is. Cargo assigned to the green channel at Santos can clear presence and customs in two days. The same cargo in the red channel, needing approval from ANVISA (health authority) or MAPA (agriculture ministry), may eat up five or six days before clearance alone, and the return still has to happen after that.

If you only watch the total free time number, you see an aggregate. Measuring each step along the way tells you, by day three, whether the return will make the deadline or whether you need to call the carrier about an extension.

The carrier’s depot has rules the operator learns at the gate

Each carrier keeps its own list of authorized depots per port. In Santos, the big carriers work with three to five depots spread across Guarujá, Cubatão, and the Left Bank area. In Itajaí and Navegantes, the depot pool is smaller and more concentrated. You need to check the current list before dispatching the empty: returning to an unauthorized depot means a repositioning charge.

The return itself follows a protocol. The trucker books a gate-in window, shows up at the scheduled date and time, and goes through a gate inspection. The inspector checks cleanliness, cargo residue, structural integrity, and seal removal. If the container gets rejected for damage, the trucker has to take it for repair and try again, all while free time keeps ticking.

Booking availability is a bottleneck, and it shifts by port and carrier. During import peaks like September and October, when Brazilian retailers restock for Black Friday and Christmas, depots in Santos and Navegantes run at capacity. The slot that normally opens for the next day may push two or three days out. If you track depot availability for the carriers you use most, you can schedule the return ahead of time instead of finding out about the queue after free time has already expired.

Where days get lost between clearance and return

The riskiest stretch is from customs clearance to the actual depot return. Clearance is when the Federal Revenue Service releases the cargo and the importer can collect it. From that point, three things have to happen in order: the trucker picks up the full container from the terminal, delivers it to the importer for destuffing, and takes the empty back to the depot.

Any of these can take longer than expected. A trucker juggling multiple clients will prioritize by urgency, and a container with free time to spare goes to the back of the line. An importer without the crew or floor space to destuff the same day holds the container in the yard for a day or two. Mixed cargo with many packages or goods that need item-by-item checks can take a full working day to unload.

Once the container is empty, it still needs to get back to the depot. If the importer is far from the port (think interior of São Paulo state for cargo arriving through Santos), the return trip alone takes a full day. If the depot has no slot available for the next day, the empty sits at the trucker’s yard waiting.

Each of these delays looks small by itself: one day in transport, one day destuffing, one day waiting for a depot slot. Add them up and three days after clearance become ten days since discharge, three past the seven-day free time. Detention charged by the carrier from day eight onward can start at US$ 65 per container per day and climb to US$ 95 after two weeks and US$ 125 after three weeks, depending on the carrier and equipment type. For reefer containers, with shorter free time and higher daily rates, some carriers charge up to US$ 460 per day.

The freight forwarder sits in the middle of the charge

The forwarder passes on to the importer, as part of the quotation, the free time received from the carrier, sometimes with a one- or two-day buffer built in. When the importer is late on destuffing and return, the carrier invoices detention to the forwarder, who then has to bill the client.

Problems come up when the contract between forwarder and importer does not spell out who owns the return deadline. If the importer thinks the forwarder should have flagged the deadline sooner, or if the forwarder invoiced the shipment without charging detention because the importer pushed back, the cost lands on the forwarder. In our experience with freight forwarders in Brazil, disputed detention cases eat up hours from both operations and finance teams and, more often than not, get absorbed as a loss at settlement.

A court in Santa Catarina state recently issued an injunction preventing a carrier from charging demurrage caused by the depot’s failure to offer a return slot within free time. The court’s reasoning was that the importer cannot be penalized for a delay they did not cause. This gives forwarders grounds to dispute charges when the carrier’s depot did not provide a slot within the free period. But to make that argument stick, the operations manager needs to document the date, time, and outcome of every booking attempt.

Measuring partial intervals transforms free time control

Free time is one deadline, but keeping it under control means breaking it into stages and measuring each one. You need four dates per container: discharge (free time start), customs clearance (Federal Revenue release), destuffing (container emptied), and depot return (gate-in accepted).

Those four dates give you three intervals. Discharge to clearance: how long the cargo sat at the terminal waiting for release. Clearance to destuffing: how long the container stayed full after it was cleared. Destuffing to return: how long the empty container waited to go back. Each interval points to a different responsible party and a different fix.

If the first interval is long, the bottleneck is in clearance, so you work with the customs broker or escalate with regulatory agencies. If the second is long, the hold-up is with the importer or the trucker, and the right move is to alert the importer that free time is running out. If the third is long, the depot or trucker is the problem, and the answer is booking earlier or trying a different depot from the carrier’s list.

Once you organize these intervals by container, shipment, and client, patterns show up. A client who consistently delays destuffing gives you the basis for renegotiating detention responsibilities. A depot that frequently rejects containers is reason enough to prioritize another one on the list. A trucker who is slow on returns tells you who not to use on the next shipment.

Frequently Asked Questions

What is the deadline for returning an empty import container?

It depends on the carrier’s free time, which is typically seven days for dry containers and five for reefers, counted from the day after discharge per Brazil’s ANTAQ Normative Resolution 18. Within that period, the importer has to complete customs clearance, pick up the cargo from the terminal, destuff the container, and return it empty to the carrier’s designated depot.

What happens if the empty container is returned to the wrong depot?

The carrier charges a repositioning fee to move the container to the correct depot. The cost varies by carrier and distance but can easily exceed several days’ worth of detention charges. Before dispatching the empty, confirm the carrier’s current authorized depot list for that port.

Are demurrage and detention the same charge?

No. Demurrage applies while the full container stays at the port terminal beyond free time. Detention applies once the container has left the terminal and is still out, whether full or empty, past the free period. Most carriers in Brazil combine both under a single import free time period, but the daily rates may differ.

How Tier2 Cargo Tracks Free Time per Container

Tier2 Cargo records free time for each container in the import process, with the start date based on discharge and the free days set by the carrier’s tariff. As operational milestones get logged, the system shows how many free days are left and, once the deadline passes, calculates accrued detention using the carrier’s tiered rates.

The system tracks 13 operational milestones per shipment, including the ones described in this article: vessel arrival, customs clearance, terminal pickup, and empty container return. Because these milestones live in the process workflow, the operations manager can see partial intervals without maintaining a separate spreadsheet.

Through Tier2 Portal, the business partner can see the free time countdown per container and the milestones already completed, pulled directly from Tier2 Cargo. When the importer can check the deadline on their own, the forwarder’s operator stops fielding calls about “how many days do I have left” and can focus on actually sequencing the return.

See how it works or get in touch.

If you want to start shortening return times, measure first. Record the four dates for each container across your last twenty shipments and work out where the days went. The pattern that comes out of that exercise will point to the step worth tackling first.