When you get quotes for an interstate move, the mover must tell you whether the estimate is binding or non-binding. The difference affects how much you pay at the end. This guide explains both types and how to choose.

What Is a Binding Estimate?

A binding estimate is a guaranteed price. The mover agrees to charge you that amount as long as the services and shipment stay the same. If you add items or request extra services after the estimate, the price can go up. But if everything matches what was on the estimate, you pay exactly what was quoted.

When Binding Works Best

Binding estimates are good when you want a fixed budget. You know the top line before the move. They work well when you've had an in-home or video survey and the mover has a clear picture of what you're moving. They may start slightly higher than a non-binding estimate because the mover builds in a cushion for unknowns.

What Is a Non-Binding Estimate?

A non-binding estimate is not a guaranteed price. It's the mover's best guess based on the information they have. The final bill is based on actual weight and services. If your shipment weighs more than estimated, you pay more. If it weighs less, you pay less. Federal rules limit how much more you can be charged—usually 110% of the original estimate at delivery, with the rest due within 30 days. But you must be able to pay that 110% to get your goods.

When Non-Binding Makes Sense

Non-binding estimates can be useful when the mover can't do a detailed survey or your shipment might change. The risk is that the final bill can be higher than expected. Always ask what the estimate assumes for weight and services.

Type	Final Price	Best For
Binding	Fixed (unless you change shipment)	Budget certainty, in-home survey done
Non-Binding	Can go up or down based on actual weight	Rough estimates, shipment may change

What Must Be on the Estimate

Federal rules require movers to put certain things in writing. The estimate must state whether it's binding or non-binding. It should list the services included, the assumed weight, and the rate structure. For non-binding estimates, it must explain that the final price can vary and that you may need to pay up to 110% at delivery. Get everything in writing before you sign. The estimate ties into your bill of lading, which is the contract for your move.

How to Avoid Surprise Charges

To avoid shocks with a non-binding estimate: get an in-home or video survey so the weight estimate is accurate; declutter before the move so you're not adding last-minute items; and don't add services on moving day without asking the cost. For more on pricing, see our guide on interstate weight vs volume pricing. Use our moving cost calculator to compare ballpark numbers before getting quotes.

Red Flags With Estimates

Be cautious if a mover won't put the estimate in writing, refuses to specify binding or non-binding, or gives a quote that seems far below others. Scammers often use low estimates to get a deposit, then raise the price. Read our article on avoiding long-distance moving scams.

Summary

Binding estimates lock in the price; non-binding estimates can change based on actual weight. Get the estimate type and all details in writing. Prefer binding when you want certainty, and always get multiple quotes. Check our long-distance moving guide for more planning tips.