# Self-pay medical bills: ask for a written good faith estimate

A provider's bill at least $400 above its good faith estimate may qualify for a federal dispute process, subject to eligibility and deadlines.

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Published by: [No Secrets Research](https://nosecrets.app/en/about#methodology)
Added: 2026-10-20
Topic: Health & beauty

## Scope and context

Applies to: United States · uninsured or self-pay medical care
Time context: Public guidance checked October 20, 2026
Sources checked: 2026-10-20

This is not the process for every insured bill or emergency visit. CMS eligibility rules and the facts of your care determine the available route.

## Ask before scheduled care

CMS says self-pay patients generally can request a good faith estimate; scheduling at least three business days ahead also triggers estimate rules. Ask separately about each provider or facility because one estimate may not include everyone.

[1: CMS](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights/get-help/guides-resources/what-good-faith-estimate)

## Check all dispute conditions

CMS lists a $400-or-more difference for one provider or facility, an initial bill within 120 calendar days, and other eligibility conditions. Its dispute page currently also specifies an estimate received three days before the appointment.

[2: CMS](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights/get-help/dispute-bill)

## Keep the paperwork and understand the fee

Save the estimate and itemized bill. CMS lists a $25 administrative fee; a favorable decision deducts it from the amount owed. Review is not a guaranteed reduction, since unanticipated necessary care may justify charges.

[2: CMS](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights/get-help/dispute-bill)

## Sources

1. [What is a good faith health insurance estimate?](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights/get-help/guides-resources/what-good-faith-estimate) — CMS. Checked 2026-10-20. Explains self-pay estimates and their limits.

2. [Dispute a medical bill](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights/get-help/dispute-bill) — CMS. Checked 2026-10-20. Lists eligibility, timing and the administrative fee.

## Disclosure

AI-assisted research, writing and translation by No Secrets, using the linked public documents. This is a source summary, not firsthand reporting or an independently audited investigation. No affiliate links are used in this article.

The source-check date is not the event date. Original documents control if a summary differs.