A written estimate that falls apart at delivery is the single fastest way to turn a booked job into a bad review and a federal complaint. FMCSA requires every interstate mover to provide a written estimate before the shipment is loaded, and the estimate type you choose determines what you're legally allowed to collect at the door. Get the numbers wrong and you either eat the difference or fight a chargeback. Here's how binding, non-binding, and not-to-exceed estimates actually work, and how to build one that holds up.
What's the Difference Between a Binding and Non-Binding Moving Estimate?
A binding estimate locks the price: you can't collect more than 100 percent of the stated amount at delivery, even if the shipment weighs more than expected. A non-binding estimate is your best guess based on estimated weight, and the customer must be prepared to pay up to 110 percent of it at delivery, with the mover required to defer any remaining balance for at least 30 days if the final bill runs higher than that. Binding estimates protect the customer from surprises. Non-binding estimates protect the mover from underquoting a job that turns out heavier than the walkthrough suggested. Most growth-stage movers default to binding or not-to-exceed estimates specifically because a surprise invoice at delivery is the #1 driver of same-day disputes and bad reviews.
Not-to-Exceed: The Estimate Most Movers Actually Want
A not-to-exceed estimate caps the price at the estimated amount but lets the final bill come in lower if the actual weight ends up under the estimate. It's binding on you as the carrier, but it gives you room to charge less when a job runs light — which is why the American Trucking Associations' Moving & Storage Conference describes it as increasingly the default offering over a straight non-binding estimate, which "has become increasingly less common."
Does Federal Law Require an In-Home Estimate?
Yes, with one exception. If the pickup location is within 50 miles of your business (or your agent's), FMCSA requires the estimate to be based on a physical survey of the goods — not a phone quote, not a guess. The customer can waive the physical survey, but the waiver has to be a signed, written agreement made before the shipment is loaded. Skip this step and you're not just risking a bad estimate, you're out of compliance. This is exactly where a lot of owner-operators get caught: someone quotes a 3-bedroom house over the phone using a rough per-room rule of thumb, no survey, no waiver on file, and the estimate has no legal standing the day a customer disputes the final invoice.
What Documents Have to Go With Every Estimate?
Beyond the estimate itself, federal rules require movers to hand shippers five specific documents before the contract is signed: the "Your Rights and Responsibilities When You Move" booklet, the written estimate, a summary of your arbitration program, your complaint-handling procedure, and your tariff. Miss one and the estimate itself can be challenged. If your bill of lading and estimate paperwork live in three different binders and two different software tools, this is the step that gets skipped under deadline pressure — which is exactly the gap a single quoting-to-BOL-to-invoice pipeline is built to close.
How Do You Actually Build the Number?
The number underneath every estimate — binding or not — comes from a cube sheet: a room-by-room inventory converted into estimated cubic footage or weight, then priced against your tariff (your published rate table for labor, mileage, and accessorial charges like stairs, long carries, or shuttle service). Build the cube sheet wrong — miss a garage, guess low on a storage unit, forget the piano — and every estimate type inherits the same error. This is the actual point of failure in most estimate disputes: not the legal paperwork, the underlying inventory count.
Three ways moving companies build that count today:
- In-home walkthrough. An estimator physically inventories the home. Most accurate for complex jobs (stairs, tight access, high-value items), but it's the slowest and most expensive per lead — every visit costs estimator time and fuel whether the job closes or not.
- Phone questionnaire. Fast, but it's a guess dressed up as a number. Fine for a rough range quote, risky as the basis for a binding estimate on anything beyond a studio move.
- Video or photo-based survey. The customer walks their home on camera or uploads photos; software (or a reviewing estimator) converts what it sees into a cube sheet. Faster than in-home, more defensible than a phone guess, because there's a visual record attached to the file if a dispute comes up later. See DriveSales' video survey feature for how the walkthrough-to-cube-sheet step works end to end.
Whichever method you use, the estimate is only as good as the inventory feeding it. DriveSales' estimating tools let you build the cube sheet from a video survey, an in-home walkthrough, or a phone questionnaire and apply your own rates, minimums, and surcharges automatically — so the same tariff logic runs every quote instead of a different estimator doing the math a different way each time. Need a starting point before you're ready for software? Our free moving estimate template covers the same fields FMCSA requires on paper.
Manual Spreadsheets vs. Estimating Software: What Actually Changes
A spreadsheet doesn't know your tariff has changed, doesn't flag a missing accessorial charge, and doesn't track which estimate type (binding, non-binding, not-to-exceed) you promised a specific customer once the quote is six weeks old and the move date finally arrives. Every one of those gaps is where a compliant-looking estimate turns into a delivery-day dispute — not because the estimator lied, but because the paperwork and the pricing logic lived in different places. An estimating platform that ties the cube sheet directly to your published tariff, stamps the estimate type on the record, and carries that number straight into the bill of lading and the final invoice closes that gap by construction — the number the customer signed off on is the number that shows up at delivery, because it's the same record the whole way through.
How Should You Price a Move Once You Know the Cube?
Pricing sits on top of the cube sheet: base labor and mileage from your tariff, plus accessorial charges for stairs, long carries, elevators, or shuttle service where a truck can't get close to the home. FMCSA caps "impracticable operations" charges collected at delivery at 15 percent of all other delivery charges — anything above that has to be billed within 30 days instead of demanded at the door. Run your own numbers through the moving cost calculator to sanity-check a quote against typical local and long-distance ranges before it goes out, especially on a job type your team doesn't estimate often.
Frequently Asked Questions
Do I have to offer a binding estimate? No. FMCSA requires a written estimate on every interstate shipment, but the type — binding, non-binding, or not-to-exceed — is a business decision, not a federal mandate, as long as the estimate discloses which type it is.
Can I charge for a binding estimate? Yes, FMCSA rules permit charging for a binding estimate, while non-binding estimates must be provided free of charge.
What happens if the actual weight is higher than my non-binding estimate? The customer only has to pay up to 110 percent of the estimate at delivery. Anything above that gets billed later, with at least 30 days before payment is due.
Can I revise an estimate after the walkthrough but before loading? Yes, if both parties agree in writing before the shipment is loaded. Once the truck is loaded, a binding estimate can't be amended upward except for services requested after the fact.
How many interstate movers does this actually apply to? FMCSA regulates roughly 4,800 interstate household goods carriers and 500 brokers, covering about 600,000 of the estimated 35 million household moves that happen in the U.S. every year. If you run interstate jobs at all, these rules apply to every one of them.
Does an estimate need to be in writing even for local, intrastate moves? Federal estimate rules apply to interstate moves; intrastate moves are regulated by state law, which often has its own written-estimate requirements — check your state's moving regulations before assuming federal rules are the only ones that apply.
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Booking the job is the easy part. The estimate is the contract that decides whether moving day ends in a signature or a dispute. Book a DriveSales demo to see how one estimating workflow — video survey, in-home, or phone-in — carries the same tariff-priced number from quote to bill of lading to final invoice.
