What is a binding estimate, and how does it differ from a non-binding one?

The three types of estimate

Non-binding estimate

The mover's best guess of what the move will weigh and cost. The final invoice is based on actual weight (or volume) measured at pickup or delivery. If the actual weight comes in higher, you pay more. Federal rules limit how much extra a mover can collect at delivery on a non-binding estimate before billing the rest later, but the price is not capped.

Binding estimate

A fixed price for the services and inventory listed on the estimate. If the actual weight is higher than estimated, you still pay the binding amount. If it's lower, you also still pay the binding amount. Add new services or items not on the estimate and the carrier can issue a new binding estimate or convert to non-binding.

Binding-not-to-exceed estimate

A consumer-friendly hybrid. The estimate is treated as a maximum — if the actual weight comes in lower, you pay the lower amount; if it comes in higher, you still pay no more than the estimate. Federally regulated interstate movers commonly offer this on long-distance shipments.

Quick comparison

• Non-binding — flexible, but final price can rise above the quote.
• Binding — predictable, but you pay the same amount even if your shipment weighs less than estimated.
• Binding-not-to-exceed — caps the upside risk and keeps the downside benefit; usually the strongest protection for consumers.

Why movers offer different types

Carriers don't always know exactly how heavy your shipment will be until it's loaded and weighed. They build different products around that uncertainty:

• A non-binding estimate lets the mover quote off a quick survey and settle the actual price later. It's flexible but transfers price risk to you.
• A binding estimate transfers the risk to the mover and locks in revenue.
• A binding-not-to-exceed estimate is a deliberate consumer-protection product some carriers use to win bookings on competitive lanes.

What an estimate is required to include

For interstate household-goods moves, FMCSA requires a written estimate that includes:

• Mover's name, USDOT number, and contact details
• A description of the move (origin, destination, dates)
• Inventory of items being moved (or weight basis)
• Services included and accessorial charges
• Valuation/insurance election
• Whether the estimate is binding, non-binding, or binding-not-to-exceed
• Payment terms

If you don't see "binding," "non-binding," or "binding-not-to-exceed" clearly stated on the document, ask the mover to put it in writing before you sign.

How accessorials change the price

Even a binding estimate can grow if real-world conditions differ from what was assumed. Common accessorials:

• Stair carry — additional flights of stairs.
• Long carry — distance from truck to door beyond a baseline.
• Shuttle service — when the truck can't park near the door and a smaller vehicle is required.
• Crating — special crating for art, marble, or fragile items.
• Storage-in-transit — temporary storage between pickup and delivery.
• Bulky items — pianos, safes, hot tubs, exercise equipment.

The cleanest estimates list these out explicitly, including what's included and what would trigger an extra charge.

Common mistakes that turn into surprise bills

• Adding boxes after the survey without telling the mover.
• Finishing the basement, attic, or garage between survey and move day and not notifying the mover.
• Underestimating how much will actually go on the truck.
• Booking a non-binding estimate based on a 10-minute phone call.
• Signing a bill of lading on move day without checking that pricing, inventory, and entity name match the estimate.

Which estimate type to ask for

For most long-distance moves, in order of preference:

1. Binding-not-to-exceed, if the mover offers it. You're capped on the upside and protected if the shipment weighs less.
2. Binding, if not-to-exceed isn't available. Locks the price either way.
3. Non-binding, only if you have a clear inventory and you trust the mover's estimating process — and ideally only with a carrier whose USDOT and complaint history check out cleanly.

How to compare estimates apples-to-apples

• Make sure all three quotes use the same inventory.
• Make sure all three quotes assume the same accessorials (stair, long-carry, shuttle).
• Make sure all three quotes show the same valuation/insurance election.
• Confirm whether each estimate is binding, non-binding, or binding-not-to-exceed.
• Check pickup and delivery date windows — a wider window can be cheaper but less certain.

Where this fits in the broader vetting workflow

Insisting on a written, clearly typed estimate is one of the most effective single defenses against the patterns described in our moving scams and rogue movers guides. Once you have written, comparable estimates from a few licensed carriers, you can decide on an apples-to-apples basis. To benchmark whether the numbers themselves look reasonable, use our moving cost calculator for a market range on your specific route and home size.