A clean estimate should explain what changes the price.

Updated evidence / October 19, 2026

Cost audit: make every estimate explain what changes the price

A clean estimate should let you trace a price change to a specific quantity, service, or contract term. Extend your audit beyond whether fees are listed: check how the mover will calculate them, what evidence will support them, and when payment becomes due. The federal requirements below concern interstate household-goods moves; do not assume these payment protections govern a local move.

Start by testing whether the document is an estimate at all. FMCSA's unexpected-cost guidance distinguishes a rate quote from a written estimate and says the estimate should follow an actual or virtual inspection of your belongings. It must include transportation, accessorial, and advance charges. For your audit, ask the mover to explain each category in ordinary language and identify any amount still awaiting confirmation. Then compare the inspected inventory with what you actually intend to ship. An attractive total based on an incomplete inspection gives you little basis for judging the eventual price. Keep the inventory and estimate together so you can identify exactly which assumptions supported the original amount.

Next, separate a binding price from the scope it covers. Under 49 CFR § 375.403, a binding estimate must identify the shipment and services, and its stated charges apply to the services specifically listed. Before loading, additional goods or services can lead to reaffirming the estimate, signing a revised binding estimate, or agreeing in writing to treat the original as non-binding. As a practical check, ask what happens if you add ten cartons or request packing for a cabinet originally listed as already packed. Read any replacement document for both its total and its estimate type. A signature that changes the estimate to non-binding changes how the final price is determined, even if the displayed starting amount stays familiar.

For a non-binding estimate, audit the calculation rather than treating the total as a promise. Section 375.405 requires a written estimate provided without charge, describing the entire shipment and services, with final charges determined under the applicable tariff. It also requires a written explanation of the conversion formula when a volume estimate will later become a weight-based rate. Ask for the relevant tariff provisions and a worked calculation using your estimated shipment. Record the measurement, rate, minimum, and service quantity as separate entries. If the mover identifies additional goods before loading, the regulation calls for reaffirming the estimate or preparing a new signed estimate detailing the additions. Save both versions so the reason for the change remains visible.

Check minimum charges before assuming that shipping fewer belongings will produce a matching saving. FMCSA's pickup guidance identifies minimum weight or volume charges and special services as items to examine. For a weight-based shipment, ask which minimum applies and where it is disclosed. Then establish how you will verify actual weight: FMCSA describes certified-scale weighing, weight tickets, and the right to observe weighing. For an origin-weighed shipment, request a reweigh before unloading if you believe the billed weight is inaccurate. The reweigh is free, but its result can increase or decrease the charge. Keep copies of the tickets and check the shipment identification rather than relying on a verbal weight total.

Separate the final bill from the amount required at delivery. FMCSA's estimating guidance explains that 110 percent of a non-binding estimate is a delivery-payment limit, subject to exceptions, rather than a ceiling on the final cost. In a hypothetical move with a $4,000 non-binding estimate, that baseline is $4,400. Additional services you request after the contract is executed can be payable at delivery, and tariff-defined impracticable operations have separate treatment. Charges for those operations collected at delivery cannot exceed 15 percent of all other charges due then. Ask for an itemized delivery-payment calculation showing the estimate amount, each exception, and any balance billed later. Do not apply another 15 percent automatically to every estimate.

Turn these checks into a simple price-change record before booking. Use four columns: original assumption, proposed change, pricing evidence, and payment timing. For example, an added packing service should lead you to the revised scope and its stated charge; a weight increase should lead you to the weighing evidence and applicable rate. This record is an audit tool, not a substitute contract. Its value is that it forces each explanation to connect with a document you can retain. Before signing a revision, ask the mover to identify which earlier version it replaces and explain any change in estimate type. A usable estimate leaves you able to reconstruct the price without depending on someone's memory of a phone call.