Binding vs Non-Binding Moving Estimates Explained
The three kinds of moving estimate, what each one legally commits the carrier to, and the one clause that turns a friendly quote into a four-figure surprise.
Published September 23, 2026 · 6 min read · By My Fast Movers
Most moving disputes are not about damage. They are about the number changing between the quote and the truck, and almost all of those trace back to a single word on the estimate that the customer did not read: non-binding.
There are three kinds of estimate. Only one of them protects you. Here is what each one commits the carrier to, why the wrong one is so common, and how to get the right one.
The three kinds, in one table
| Type | What it commits to | Can the price rise? | Can it fall? |
|---|---|---|---|
| Non-binding | Nothing — it is a guess | Yes, based on actual weight | Yes |
| Binding | A fixed price for the listed inventory | Only for things not on the estimate | No |
| Binding not-to-exceed | A ceiling for the listed inventory | Only for things not on the estimate | Yes |
If you remember one line from this article: ask for binding not-to-exceed, by name, after a survey.
Why non-binding is the default, and why that suits the carrier
A non-binding estimate is the easiest thing in the world to produce. No survey, a two-minute phone call, a number that sounds good. The carrier is committed to nothing, because the final bill is based on the weight of the shipment once the truck is on the scale.
That is the problem. Long-distance moves are priced on weight, and weight is not something anyone can guess over the phone. When the guess is low — and a low guess is what wins the booking — the bill is revised upward after loading, when your belongings are already on the truck and your options have narrowed to one.
Under federal rules for interstate moves, the carrier cannot demand more than 110% of a non-binding estimate at delivery before releasing your goods. That is a real protection, and worth knowing. But it caps what they can collect on the day. The balance is still owed and billed afterwards, and a badly surveyed move can run well past that.
What “binding” actually binds
A binding estimate fixes the price for what is on it. That last phrase is the whole game.
It binds the carrier to the price for the inventory surveyed, the services listed and the access conditions disclosed. It does not bind them to move the extra thirty boxes you packed after the survey, the piano that was not mentioned, or the third-floor walk-up you did not bring up. Every one of those is a legitimate extra charge, and a carrier that wants to grow the bill will find them.
So a binding estimate is only as good as the survey behind it. Which brings us to the part most people skip.
The survey is the estimate
A written estimate produced without a video walkthrough or an in-home visit is a guess with a signature. It does not matter whether it says binding or not, because the inventory it is binding to is fiction.
Insist on a survey for any long-distance move. During it:
- Walk the surveyor through every room, every closet, the garage, the attic and the shed.
- Point out the things you are not taking, and get them listed as excluded.
- Disclose the access at both ends: stairs, elevators, parking distance, anything a truck might struggle with.
- Ask for the estimated weight to be written on the estimate, so you can see whether it is plausible for your home.
Then get it as binding not-to-exceed. If the carrier will not offer that after a proper survey, ask why. There is rarely a good answer.
Not-to-exceed: the one to ask for
A binding not-to-exceed estimate is a ceiling with a trapdoor. The price cannot go above the figure for the surveyed inventory, but if the shipment weighs less than surveyed — because you decluttered, or the surveyor was cautious — you pay the lower actual weight.
It costs the carrier nothing to offer if the survey was honest, which is exactly why a reputable one will. It is also why a refusal is informative.
The clauses that turn a good estimate bad
Read the estimate for these before you sign:
“Estimate subject to change based on actual weight.” That is a non-binding estimate wearing a different coat. If it says binding and also says this, it is not binding.
Accessorial charges listed without prices. Long carry, stair carry, shuttle, elevator, waiting time. They should each have a figure. “As incurred” means as much as they like.
A blank or partial bill of lading. Never sign one. The bill of lading is the contract; whatever is written on it after you sign is what you agreed to.
A large deposit. Reputable carriers take little or nothing up front and bill on delivery. A demand for a big deposit, especially by wire or cash, is the most reliable warning sign in the industry — and it is a bigger red flag than any estimate type.
Where the numbers should land
Before you get any estimate, know roughly what the move should cost. That number is your defence against both a lowball non-binding guess and an inflated binding one.
For reference, from our published model — transport only, full-service movers:
- Two-bedroom home, 1,000 miles: about $4,500 to $6,000
- Three-bedroom home, 1,000 miles: about $5,175 to $6,900
- Three-bedroom home, 2,500 miles: about $12,938 to $17,250
Run your own route through the moving cost calculator, then get three written estimates on the same inventory. If one is far below the others, that is not a bargain — it is usually the non-binding one, and it will find its way back to the others after loading. If you are still choosing between carriers, how to check a moving company covers the USDOT and complaint-record checks that take two minutes and prevent most of what goes wrong, and the largest licensed interstate movers is a shortlist built from the federal register rather than from advertising.
Questions people ask
What is the difference between a binding and a non-binding moving estimate?
A binding estimate fixes the price for the inventory and services listed on it, whatever the shipment turns out to weigh. A non-binding estimate is the carrier's best guess, and the final bill is based on the actual weight — it can rise, and on a long move it commonly does. A binding not-to-exceed estimate is the best of both: the price can fall if the load is lighter but cannot rise.
Can a mover charge more than a binding estimate?
Only for things that were not on it: items you added after the survey, services you requested on the day, or access problems you did not disclose. If the inventory and conditions match the estimate, the price is the price. Under federal rules for interstate moves you must be given your goods on paying the binding amount, with any disputed extras billed afterwards.
What is a not-to-exceed moving estimate?
A binding estimate with a one-way door. The carrier commits to a maximum, and if the shipment weighs less than surveyed you pay less. It is the estimate type to ask for by name, and a carrier that will not offer one after a proper survey is telling you something.
Is a non-binding estimate ever the right choice?
Rarely, and only when you genuinely cannot say what is moving — a partial house clearance, say, or a move where the inventory will shrink before the date. Even then, ask for it to be converted to binding once the inventory is known.
How much can a non-binding estimate go up?
Under federal rules for interstate moves, the carrier cannot demand more than 110% of a non-binding estimate at delivery before releasing your goods; the rest is billed within 30 days. In practice the total on a badly surveyed non-binding move can run 20 to 40 percent over the quote, and on a 2,500-mile three-bedroom move that is several thousand dollars.
How this was written. Every cost figure in this article comes from the same published model that powers the calculator, so it cannot disagree with the tool. We do not operate trucks and nobody pays us for placement.