A practical answer / official sources

When must a practice send a good faith estimate?

Prepared by Prospyr · Sources reviewed September 16, 2026

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The short answer

For covered uninsured/self-pay estimate situations, scheduling 3–9 business days ahead generally requires the estimate within 1 business day of scheduling; scheduling 10 or more business days ahead generally allows 3 business days. A request without scheduling generally requires a response within 3 business days. Check applicability and current federal guidance.

Record the trigger date

CMS explains different timelines for scheduling and requests. A request can trigger the estimate process even when no appointment is booked. Do not confuse a good faith estimate of charges with a good faith clinical exam; they solve different problems.

Make the deadline visible to the team

As an operational control, save the request or scheduling timestamp, appointment date, uninsured/self-pay status and delivery deadline together. Track when the written estimate was delivered and preserve its version. State rules or other obligations may add requirements.

Your practical checklist

  1. Ask whether the patient has or intends to use insurance for the service.
  2. Record the scheduling or estimate-request date.
  3. Calculate the applicable business-day deadline.
  4. Deliver the written estimate and retain the exact version sent.

A worked example

A patient requests expected charges before choosing an appointment. The request should enter the estimate queue immediately, rather than waiting for a booking. Use the request date to calculate the response deadline and retain proof of delivery.

Illustrative workflow example; not a patient case or individualized recommendation.

Mistakes to avoid

  • Treating a verbal price as the complete written estimate.
  • Waiting until check-in for a visit booked weeks earlier.
  • Confusing the financial estimate with a clinical exam.

Official sources and review scope

Prepared by Prospyr from the cited primary sources. These are educational workflow resources, not individualized clinical, coding, legal or tax advice. No clinician, certified-coder or attorney review is claimed. Confirm current code instructions, payer terms and applicable law for the actual service and date. CPT is a registered trademark of the American Medical Association; this is not a substitute for a licensed current code set.

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