A binding estimate is a written, firm price guarantee — you pay exactly that amount regardless of whether your shipment weighs more or less than projected. A non-binding estimate is a carrier's best guess; your final bill is calculated from actual weight and services, and it can legally exceed the estimate. Knowing which type you're signing before moving day is the single most important thing you can do to protect your wallet.
What is a binding estimate — and what does it actually guarantee?
A binding estimate is a legally enforceable contract between you and a federally licensed (USDOT/FMCSA) interstate mover. The price on paper is the price you pay. If the crew shows up and your shipment weighs 300 lbs more than estimated, that's the carrier's problem — not yours.
What a binding estimate covers:
- All services explicitly listed in the estimate (packing, crating, stair carries, etc.)
- The total weight of your shipment as inventoried during the estimate walkthrough
- Fuel, standard pickup, and delivery
What a binding estimate does NOT automatically cover:
- Services you add on the day of the move (extra packing materials, a long carry because the truck can't reach your building)
- Items that weren't on the original inventory list
- Shuttle service fees if your address is inaccessible to a 53-foot trailer
Those additions become an amended binding estimate or a separate line-item charge. Always read what's explicitly excluded. For more on how these fees can sneak onto a bill, see our guide to moving hidden fees and surcharges.
What is a non-binding estimate?
A non-binding estimate is the carrier's educated projection based on your inventory and a standard rate per pound. Under FMCSA regulations (49 CFR Part 375), an interstate carrier cannot collect more than 110% of a non-binding estimate at delivery — but that 10% cushion is real money. On a $4,000 estimate, you could legally owe $4,400 on the spot before they'll unload the truck.
The carrier must weigh the shipment before and after loading, and you have the right to observe those weigh-ins. If you believe the weight ticket is wrong, you can demand a reweigh before delivery — at no cost to you.
The 110% rule in plain language:
- Estimate: $4,000
- Maximum collectible at delivery: $4,400
- Anything above $4,400 must be billed and paid within 30 days — the carrier cannot hold your goods hostage for it.
Binding vs. non-binding at a glance
| Feature | Binding Estimate | Non-Binding Estimate |
|---|---|---|
| Price flexibility | Fixed — you pay exactly what's quoted | Variable — final bill based on actual weight |
| Can your bill go up? | Only if you add services | Yes, up to 110% at delivery |
| Can your bill go down? | No (you pay the agreed price) | Yes, if shipment weighs less than estimated |
| Best for | Predictable budgets, fixed moves | Shipments that are hard to inventory precisely |
| FMCSA protection | Full price cap | 110% rule applies |
| Requires written inventory | Yes | Yes |
Is there a third option? (Yes — the binding not-to-exceed estimate)
The binding not-to-exceed estimate (also called a "guaranteed not-to-exceed" or NTE) is the most consumer-friendly option and increasingly common among reputable carriers. Here's how it works: if your actual shipment weighs less than estimated, you pay the lower, actual-weight price. If it weighs more, you still pay only the quoted price.
In other words, you get all the upside of a non-binding estimate (potential savings) with all the protection of a binding estimate (a price ceiling). Not every mover offers this option, but it's worth asking for specifically when you're comparing moving quotes.
Which type of estimate should you ask for?
Choose a binding or NTE estimate when:
- You're on a tight budget and need a firm number for financial planning
- Your move is straightforward — you have a clear, complete inventory
- You're moving long-distance (interstate) where weight-based pricing is the norm
- You've already decluttered before your move and know exactly what's going
A non-binding estimate might make sense when:
- Your inventory is genuinely uncertain (you're still sorting through a large estate)
- The carrier won't offer binding pricing and you've vetted them thoroughly
- You're moving a small, light load and the 10% ceiling is a manageable dollar amount
In our 35+ years of working in this industry, we've packed thousands of homes and watched countless customers get surprised by non-binding bills. Our honest advice: always push for binding or NTE pricing on interstate moves. The carrier bears the risk of an accurate estimate — that's their job.
What FMCSA rules require movers to give you
For any interstate move, FMCSA-registered carriers are legally required to:
- Provide a written estimate before the move (binding, non-binding, or NTE)
- Give you the pamphlet "Your Rights and Responsibilities When You Move"
- Disclose whether the estimate is binding or non-binding in writing
- Accept payment by credit card or cashier's check (many also take cash) — they cannot require cash only
- Allow you to observe all weigh-ins
If a mover refuses to provide a written estimate, won't show you their USDOT number, or asks for a large cash deposit upfront, treat those as serious red flags. You can look up any interstate mover's registration status at the FMCSA's protectyourmove.gov database. For a full vetting checklist, read our post on how movers are licensed and insured.
For local (intrastate) moves: state regulations vary. Most states regulate local movers through their state DOT, PUC, or DMV — check your state's requirements, because the federal 110% rule does not apply to moves that stay within one state.
5 steps to protect yourself before signing any estimate
- Get at least two or three written estimates — from carriers who do an in-home or video walkthrough, not just a phone call. A carrier who quotes over the phone without seeing your stuff is guessing, and their non-binding guess may be low on purpose.
- Confirm the estimate type in writing. "Binding" must appear on the document itself, not just in conversation.
- Walk through every line item. Stairs, long carries, elevator fees, packing materials, fuel surcharges — ask what's included and what triggers an extra charge. Our complete guide to moving costs breaks down what each of these typically runs.
- Request a complete written inventory. For a binding estimate to hold, the carrier needs to have seen everything. If you add a piano or a gun safe after the estimate, expect an amended price.
- Read verified mover reviews specifically for comments about final bills matching estimates — that's the fastest signal of whether a company honors its quotes.
You can find movers in your area who offer binding and NTE estimates and compare them side by side before you commit to anything.
Frequently asked questions
Can a binding estimate ever change after I sign it?
Yes, but only under specific conditions. If you request additional services on moving day (packing extra items, adding a storage stop), the carrier can issue an amended binding estimate covering those additions. The original price for originally listed items remains locked. Make sure any changes are documented in writing before the crew starts working.
What happens if I want to add items the day of the move on a non-binding estimate?
Extra items added day-of increase your actual shipment weight, which raises your final bill. There's no cap on the added weight — only the 110% rule applies to the original estimate total. This is one of the strongest reasons to finalize your inventory before the estimate walkthrough.
Do binding estimates cost more than non-binding ones?
Sometimes slightly, because the carrier absorbs the risk of an underestimate. But the difference is rarely significant with a reputable mover who does a thorough walkthrough. The peace of mind is generally worth it, especially on moves over 500 miles.
Is a binding estimate the same as a flat-rate quote?
They're similar but not identical. A flat-rate quote is a fixed price typically used by local movers charging by the job rather than by weight. A binding estimate is the interstate-specific version governed by FMCSA rules and tied to a written inventory and weight projection. Both cap your price — but the regulatory framework differs.
What should I do if my final bill is higher than my non-binding estimate's 110% ceiling?
Don't pay the overage at delivery. Under FMCSA rules, the carrier must deliver your goods upon payment of the 110% maximum and then bill you for the remainder, which you have 30 days to pay. If a mover threatens to hold your belongings until you pay the full inflated amount, that may constitute hostage freight — a federal violation. Document everything and file a complaint at protectyourmove.gov.
Does this apply to local moves within my state?
Federal FMCSA rules cover interstate moves only (crossing state lines). For local intrastate moves, your state's own regulations apply. Most states require written estimates but may not have the same 110% delivery rule. Check with your state's moving regulations — consumer protection requirements vary considerably from state to state.
Ready to find a mover who will give you a firm, written binding estimate? Browse verified movers near you or ask Robert, our AI moving guide, any question you have about your upcoming move — he's available right on the site, no appointment needed.
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