Practice Revenue Leak Calculator

Mukesh MakwanaFounder & CEO · Hands-on medical billing & RCM across 11 specialties · Reviewed October 1, 2026

This calculator estimates how much revenue a practice loses each month to denied claims that are never reworked or appealed. You enter your own numbers; nothing is prefilled, because no published average fits every specialty and payer mix. The formula is shown below so you can check the arithmetic yourself.

Your numbers

Use last month's figures from your billing system. Nothing is stored or sent unless you ask for the result by email.

Revenue not collected

Enter all four numbers to see the monthly figure.

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Sent

We will email your result and follow up only if you ask us to.

The formula

Monthly revenue not collected = claims per month × average paid amount per claim × (denial rate ÷ 100) × (share of denials never reworked ÷ 100). The yearly figure multiplies the monthly figure by 12.

It is deliberately simple. It assumes a denied claim would have paid about the same as your average paid claim if it had been fixed, and it ignores denials that are reworked late and paid at a lower amount. Treat the result as a size of the problem, not a forecast.

Where to find your inputs

Claims per month: your billing system's claim submission report for last month.
Average paid amount: total insurance payments for the month divided by the number of claims paid.
Denial rate: claims denied on first submission divided by claims submitted. Count denials, not rejections that never reached the payer.
Share never reworked: of last quarter's denials, how many were never corrected, resubmitted or appealed. If nobody tracks this, that is your first finding.

Eligibility verification (EV), benefits verification (BV), prior authorizations, and denial management at no cost for your first 30 days.

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What usually causes the leak

Eligibility and coverage errors that are cheap to prevent and slow to fix. See eligibility verification.
Missing or expired prior authorizations. See prior authorization denied.
Coding and modifier errors that a scrubber should catch before submission.
Filing limits passing while claims wait. See timely filing limits by payer.
No one owning denials. If every denial is not worked by reason code, the second half of the formula grows. See denial management services and the denial reason codes in the X12 claim adjustment reason code list.

How to shrink both numbers

Lower the denial rate by checking eligibility, authorizations and coding before claims go out, and lower the never-reworked share by working every denial within days. Our guide to why insurance claims are denied covers the common causes, and the 2026 Medical Billing Benchmark Report lists published benchmarks to compare against.

Frequently asked questions

How is the revenue leak calculated?

Claims per month times average paid amount per claim times the denial rate times the share of denials never reworked. The yearly figure is the monthly figure times 12.

Why are there no default numbers in the calculator?

No published average fits every specialty and payer mix, so you enter your own figures from your billing system.

Is my data stored?

No. The calculation runs in your browser. Your numbers are sent only if you ask for the result by email.

What is the difference between a denial and a rejection?

A rejection is stopped before the payer accepts the claim, usually for a data error, and can be corrected and resent. A denial is a claim the payer processed and refused to pay.

Sources

X12, Claim Adjustment Reason Codes.

The calculator uses only the numbers you enter. It is an estimate, not a forecast or a guarantee. How we verify this guidance.