A freight quote is an estimate made before the shipment meets reality: final weight, dimensions, waiting time, and the charges nobody mentioned. The gap between quote and invoice is where landed cost quietly rots. This guide sets out a monthly variance review that assigns every gap a cause and an owner.
Variance review fails when the quote was never recorded in a comparable form. Save the quoted rate with its assumptions: weight, dimensions, service level, validity dates, included and excluded charges, and the exchange rate used. An invoice can only be judged against a quote whose terms survive. A number in an email thread, with the assumptions lost, gives the carrier the stronger memory in every dispute.
Accrue the expected cost at shipment time in the finance system, so variance appears as a visible line when the invoice lands, rather than being absorbed silently into a general freight account. What is accrued can be reviewed. What is absorbed can only be wondered about at year end, when the margin has already gone and the evidence has gone with it.
Sort the months variance into causes. Dimensional weight differences point to product data or packing. Accessorial charges, waiting time, redelivery, residential or remote delivery, point to address quality and customer or warehouse behaviour. Rate differences point to expired quotes, peak surcharges, or a booking made outside the agreed service. Billing errors point to the carrier, and they are more common than most teams assume, especially duplicated charges and wrong discount application.
Each cause has a different owner and a different fix, which is why a single variance percentage for the business is almost useless. A month where variance is mostly billing error needs disputes. A month where it is mostly dimensional weight needs a tape measure and better product data. The review exists to tell those months apart and send each problem to the person who can end it.
Carrier invoices have dispute windows, and evidence ages fast. Raise billing disputes within the month, attaching the quote, the booking, and the measurement or delivery record that supports your figure. Log claims and recoveries, because a carrier conversation backed by a recovery rate and three examples is a different conversation from a general complaint about invoices feeling high.
Feed confirmed billing patterns back into carrier selection. A slightly higher quoted rate from a carrier whose invoices match its quotes is often cheaper in truth than the lowest quote with creative invoicing. Variance history is the data that reveals true carrier cost, and it should sit beside rate cards in every tender and renewal discussion.
Close the review by updating the assumptions the business actually uses: average accessorial cost per shipment by route, a dimensional weight factor by product family, and surcharge allowances by season. Those updated figures flow into landed cost and pricing, which is the entire point. A review that produces a report but changes no assumption is an audit of a leak nobody fixed.
Track one headline number over time: unexplained variance as a share of freight spend, after causes and disputes are accounted for. That share should fall quarter by quarter as data, packing, and carrier management improve. When it rises, the review has already told you where to look. Honest landed cost is not a talent. It is this review, done monthly, without exception.
Keep reading: Landed cost exception alerts: the handful of warnings an operations team will actually act on, Landed cost for subscription and replenishment products: when the same box ships every month, and Reading a freight invoice for landed cost leaks: the lines that quietly inflate every shipment cover the nearby cases in this series.
The difference between the quoted or accrued freight cost and the final invoice. Reviewed monthly by cause, it shows whether money is leaking through product data, address quality, expired rates, or carrier billing errors.
Because an invoice can only be challenged against the quoted terms: weight, dimensions, service, validity, and included charges. Without those assumptions recorded, disputes rely on memory and usually fail.
By cause, not by carrier. Dimensional weight, accessorial charges, rate expiry, and billing error each have a different owner and fix, so grouping by cause turns a report into actions.
Unexplained variance as a share of freight spend, after causes are assigned and disputes resolved. It should fall over time as data and carrier management improve.