The best solution to prevent demurrage bills

Jul 17, 2026 | Resources

Demurrage and detention charges rank consistently among the most frustrating costs in intermodal logistics. They are avoidable, but the information needed to avoid them is often scattered across multiple systems or spreadsheets, delayed, or held in the wrong place.

You already know this. You’ve probably also worked out that knowing it and actually stopping the charges from landing are two different things.

The gap is almost always the same. The free days are in the contract. The container arrival is in the port system. The planner is managing two hundred other jobs. Nobody has a live view that connects all three until the invoice arrives and someone starts working backwards.

What prevention actually requires

To stop a demurrage or detention charge before it accrues, a planner needs to know, in real time, how many free days remain on a specific container, against the specific carrier tariff that applies to it, at the port it’s sitting in.

That’s not complicated in principle. In practice, many businesses are managing it with a spreadsheet, a calendar reminder, or an experienced planner who carries the knowledge in their head. All three break down under volume, under absence, and when contracts change.

How Fargo TOPS manages demurrage and detention

Fargo TOPS holds SCAC Detention Tariffs against each carrier (SCAC code). Against each tariff, the system records the free quay days for demurrage and the free restitution days for detention, per port and per container category if required. It supports tiered charge bands, so the escalating cost structure typical in carrier contracts is accurately modelled, not flattened.

Once the tariffs are configured and the background processes are running, the information surfaces in real time on the traffic sheet. Planners see “Free Quay Days Remaining”, “Last Free Quay Date”, “Free Restitution Days Remaining”, and “Last Free Restitution Date” — as live columns alongside every relevant job. They also see “Detention Exposure (current)” and “Detention Exposure Future” (projected seven days forward), calculated directly from the tariff.

This information sits next to every job in the planners daily view, with live operational data, diminishing the need to run reports or manual checks. A container approaching its free day limit is visible before it breaches, not after.

Recovering cost when demurrage does accrue

Where demurrage or detention charges are legitimately rechargeable to a customer, Fargo TOPS supports the full cost recovery process. The charge is calculated from the tariff, added to the job as a cost or revenue line, and flows through the standard invoicing workflow. Nothing needs to be managed outside the system.

For shippers and cargo owners who use a managed logistics provider, this level of visibility is worth asking about. A provider running Fargo TOPS can evidence exactly what happened with a container’s dwell time and when charges began to accrue. That is a meaningful difference when disputing an invoice.

The container stock picture

Fargo TOPS also includes the Container Stock and Cost Control module. This shows every container currently at a depot: by location, dwell time, days in stock, storage cost accrued, last free storage date, and whether the container has been restituted or is still running on the clock. Storage costs calculated against depot tariffs can be applied directly to jobs as charges or costs. The module also supports off-hiring containers to record when control has been returned to the carrier.

If you’re currently managing this in spreadsheets or across phone calls, the difference isn’t marginal.

What if you’re using a managed logistics provider rather than your own TMS?

We always advise that there are three questions you should ask to ensure your current solution or one you’re evaluating has the right level of visibility.

  1. Can the system show you exactly what happened with a container’s dwell time?
  2. Does it have visibility into when charges started accruing?
  3. And finally, what does the exposure look like before the invoice arrives? Hot tip: That matters when you’re disputing a charge or trying to understand whether it was avoidable.

If they can’t show you that level of detail, you most likely won’t have the tools to prevent demurrage bills.

Let’s set up a demo to go through these three points and any others you have – book a call here.