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What is a good faith estimate?

Updated Sep 3, 20261 min readAnswer
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Short answer

Your federal right when uninsured or self-paying: the provider must give you a written estimate of expected charges if you ask, or when you schedule at least 3 business days ahead - per CMS under the No Surprises Act.

It itemizes the main service plus reasonably expected related charges, and it has teeth: a final bill $400 or more above the estimate can be disputed through a federal patient-provider process. Use it well: request it before any scheduled non-urgent care, from each provider involved; keep the written copy - it is the document a dispute runs on; and use it as a negotiation tool before the visit.

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What to do

1Ask for it by name."Good faith estimate" - providers must respond.
2Collect one from each provider.Facility and professionals can owe separate estimates.
3Keep the written copy.It is the dispute document.
4Dispute bills $400 or more over.The federal process exists for exactly this.

Common questions

What is a good faith estimate?

A good faith estimate is exactly what it sounds like - a written estimate of expected charges that your provider must give you when you are not using insurance, and it is a federal right under the No Surprises Act, per CMS. The mechanics: if you are uninsured or choosing to self-pay, the provider must give you the estimate if you ask for one, or automatically when you schedule a service at least 3 business days in advance; it must itemize expected charges for the main service plus reasonably expected related items; and it has teeth - if the final bill comes in $400 or more above the estimate, you can dispute the bill through a federal patient-provider dispute process. How to use it well: request it before any scheduled, non-urgent care - imaging, procedures, therapy - and from each provider involved (the facility and the professionals can owe separate estimates); keep the written estimate, since it is the document the dispute process runs on; and use it as a negotiation tool before the visit, and a shield after. Pymander, a free AI doctor available 24/7 by text, can help you plan what to ask for.

About this page. Written and maintained by the Pymander Health team. Last updated September 3, 2026.

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