of manual work to check one invoice yourself
~2–3 hrs
Audit
Demurrage and freight invoice audit: we recover what you've already overpaid
We check carrier and terminal invoices you've already paid against your own contract, and draft a claim. The initial review is free, and for the historic audit you only pay a share of what's actually recovered.
On this page: where money disappears services and prices FAQ
The audit isn't tied to a port: the claim is filed against the carrier under your contract, so we can review an invoice from any port or terminal. In Klaipėda, Riga, Tallinn and Gdańsk the review is automatic. In other ports we first request the terminal tariff — the result is the same, it just adds a few working days. Core markets: the Baltic states, Poland, DACH and Nordic Europe.
These services are aimed at different sides: most audits protect the cargo owner or forwarder against the carrier, while the German toll audit, by contrast, serves the carrier with its own fleet — there's no conflict of interest, since the other side there is the German toll operator, not your client. Payment terms analysis is fundamentally different from all the others: it checks not an invoice issued to you, but your own receivables from your own customers — and it never works against any party, because we do not contact your customer at all.
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Was your last D&D invoice calculated correctly?
Carrier invoice · No. INV-2026-04817
Ocean freight Shanghai–Klaipėda1 × 40'HC2,450.00 €
Bunker surcharge (BAF)312.00 €
Demurrage 7 d × €95.00665.00 €
Documentation fee45.00 €
Total3,472.00 €
Contract clause 4.2
free time 5 days · chargeable 2 days
Difference 475.00 €
Enter your contract terms and one invoice below — in a few seconds you'll see whether the carrier counted the free time the way it should have.
Quick D&D check
Total days
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Chargeable days
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Correct amount
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This is an indicative check — a full audit also checks formal completeness, force majeure, and the contract's fine print. More calculators: /en/calculator.
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Five places where logistics money disappears without a trace
Container demurrage
A demurrage and detention invoice from the carrier that nobody compared against the contract's free-time terms.
Driver waiting time
The hours a truck spent waiting at the ramp that never made it onto an invoice or into a report.
Freight invoices
A carrier invoice checked arithmetically, but never compared against the contracted rate.
Air terminal storage
Free time is measured in hours, not days — and when counting starts depends on the terminal, not the flight.
Terminal invoices
The storage rate escalates in tiers, and both the tier boundary and the interchange day are stated in the tariff — but rarely checked against the invoice.
All five have the same cause: checking costs more working time than one invoice seems to be worth.
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Why these invoices almost never get checked
A typical overpayment runs to a few hundred euros. Disputing it means reading the contract, comparing dates, and writing a substantiated claim. Most mid-size forwarders' finance teams don't have anyone for that — or they do, but that person's time costs more than the potential return from one invoice.
The result: errors that never get checked become a steady, invisible profit source for one side. Demurrit automates exactly the check nobody has time to do by hand.
typical overpayment on one unchecked invoice
A few hundred €
your cost for the historic audit, as long as it recovers nothing
€0
This is an illustrative calculation, not confirmed statistics — the actual time and overpayment amount depend on your specific invoices.
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Applies to every service
We review them for free and show you where the real errors are — before you pay anything.We discuss the pricing model that fits your case — gain-share on what's recovered, or a fixed fee, depending on the service.
With a full calculation basis and evidence, ready to send straight to the carrier. See what the pack looks like — with a sample PDF.
Container demurrage and detention (D&D) is the carrier's charge for holding a container beyond the free time set out in your contract. Contracted free time typically ranges from 3 to 14 days depending on the carrier and contract — the example below uses 5 days purely for illustration.
The contract clause review is not one of the modules below — it establishes which checks your contract permits at all, which is why it comes first.
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Services
Container demurrage
D&D audit
Demurrage and detention invoices, checked against your carrier contract.
25 %
Freight invoices
Freight invoice audit
Rate, fuel surcharge, accessorial charges and duplicates, checked against your carrier contract.
25 %
German Lkw-Maut
German toll audit
CO2 emissions class, axle and Euro class eligibility — checked against your vehicle documents. For the carrier with its own fleet.
25 %
Norwegian AutoPASS
Norwegian road toll audit
Emission class rate, hour rule, monthly cap and ferry discount — checked against the published tariffs. For the carrier whose fleet runs in Norway.
25 %
Rail wagons
Wagon demurrage audit
Free-time duration, weekend/holiday suspension, customs procedures, escalation tiers and track usage fee — checked against your contract.
25 %
Excise refund
Excise refund reconciliation
Your intermediary only sees its own card transactions. We compare your fuel receipts against their refund report and show the unclaimed litres.
25 %
D&D audit
Terminal invoice audit
In terminal storage invoices the costliest error is the tier boundary and the interchange day.
25 %
Customs (beta)
Customs refund and forgone-recovery detection
Missing preferential-origin proof and duplicate declarations — it doesn't estimate amounts and doesn't file applications with customs. Ongoing monitoring €59/mo (€39/mo for D&D clients) or a historic audit.
25 %
Customs procedures
Customs procedures and reliefs audit
A declaration can be free of errors and still be unnecessary.
from 390 €
The price of each service is on its card. The full price list with tiers and discounts — Pricing
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After the audit
An audit shows how much was lost. Ongoing monitoring keeps it from being lost: we check invoices while they are still unpaid, so correcting an error needs no claim, no evidence pack and no tracking of a limitation period.
If your own audit data shows that the monthly total of recurring errors is lower than the subscription price, we will say so.
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Frequently asked questions
Is this legal?
Yes. We only review your existing contract with the carrier and how it was applied to a specific invoice — this is a standard commercial dispute, nothing unusual.
Do you always recover money?
No. Not every claim is won — it depends on the contract terms and the specific case. That's exactly why, in the historic audit, you only pay for what's actually recovered, never in advance.
Can you check invoices from ports that aren't on your list?
Yes. A claim is filed against the carrier under your contract, not against a port, so the calculation check works anywhere. For four ports we already have terminal tariffs and holiday calendars on file, so the review is automatic and faster. Elsewhere we'll first ask for the terminal tariff — that adds a few days but doesn't change the result.
What data do I need to provide?
For the D&D audit: the demurrage invoices themselves, the contract's free-time terms and, if you have them, container movement data (gate-in/gate-out). For the freight invoice audit you'll also need your rate contract with the carrier — without it the system can't check the base rate or accessorials, only duplicates. No other financial information (bank statements, other invoices) is needed.
How long does the process take?
60–180 days from filing the claim, depending on the carrier.
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Send us three months of invoices for review
Free initial review — send us the last three months' demurrage or freight invoices, and we'll show you where the real errors are, before you pay anything.Getting your money back is good. Not losing it is better.
The D&D audit works retroactively. But most demurrage charges don't happen because the carrier made a mistake — they happen because nobody was tracking, in real time, when the free time ran out. Cargo Intelligence extracts data from your B/L and cargo documents and warns you before the invoice is even issued.
Existing D&D audit clients get a 20 % discount. It is applied once — to the larger of the two amounts: the Cargo Intelligence plan or the ongoing-monitoring modules. Discounts are not cumulative.
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Related articles
D&D
How to check your D&D invoice in 10 minutes
A practical guide to what to check first when you receive a demurrage or detention invoice from a carrier.
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D&D
Demurrage and detention: what's the difference, and why it matters in a dispute
Mixing up the terms in a dispute causes real harm — we explain the difference without the jargon.
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D&D
The invisible fee: why cargo owners overpay every year
Why D&D overcharges go unnoticed as long as nobody systematically checks invoices.
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Freight audit
Carrier invoice and contract: why they almost never get compared
An invoice gets checked arithmetically, but never compared against the contracted rate. Seven categories of error, and why they recur month after month.
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Freight audit
Terminal storage fee or demurrage? How to tell two invoices apart
Terminal storage and carrier demurrage often overlap for the same period. A practical explanation of how to spot when you're paying twice for the same thing.
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Driver waiting time
Driver waiting at the ramp: why it almost never gets paid
The truck sits, the driver waits, and none of it makes it onto an invoice. Why waiting hours vanish, and what needs to be documented for them to get paid.
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