Perspective · Published Jul 15, 2026

The 3 Leaks That Never Show Up on Your P&L

Your P&L records what happened, not what should have. So the biggest losses in an independent practice, time never billed, revenue that never starts, claims written off in silence, stay invisible. Here they are, quantified, with how to find yours.

Jareer Ali· Research & field notes· 10 min read

The worst revenue leaks in a practice never appear on the P&L because they are absences, not expenses: staff and physician time consumed by prior auth (about 13 hours a week per physician), revenue delayed by enrollment lag, and winnable denials written off because most are never appealed. Each is measurable, and each is fixable once you look for it.

Key takeaways

A P&L shows what happened, not what should have, so it hides losses that show up as absences.
Leak 1: time you pay for and never bill, prior auth alone runs about 13 hours a week per physician.
Leak 2: revenue that never starts, because a provider cannot bill a payer until enrollment is active.
Leak 3: money written off in silence, most denials are never appealed though most appeals succeed.
All three are measurable in your own numbers, which means all three are fixable.

If you only look at your P&L, your practice looks fine. Revenue in, expenses out, a number at the bottom. But the P&L can only record what happened. It has no line for the money you should have made and did not, and that is where the largest, most fixable losses hide. Three of them, in order of how much they usually cost.

Why your P&L hides your worst losses

A profit and loss statement is a record of transactions. An hour your staff spent fighting a prior auth instead of billable work is not a transaction. A claim you never resubmitted is not a transaction. A month of enrollment delay is not a transaction. None of them post as an expense, so none of them appear, yet each quietly lowers your top line. This is why these leaks persist for years: nobody is hiding them, the accounting simply cannot see them. To find them you have to measure what did not happen, which no standard report does for you.

Leak 1: the time you pay for and never bill

The first leak is labor with no billed output. The clearest example is prior authorization, which consumes about 13 hours a week, per physician, of staff and physician time 2025 AMA Prior Authorization Survey. You pay salaries for those hours and bill for none of them. Add the time spent reworking denied claims, roughly $57.23 in administrative cost per denial Premier, 2023, and the leak widens. This is money leaving through the payroll line while producing nothing on the revenue line, which is precisely why it is invisible: the cost is booked, the waste is not. The fix is to remove the slippage, a system that runs prior auth without eating physician hours, like the Zero-Slip system.

Leak 2: the revenue that never starts

The second leak is revenue that is delayed into nonexistence. A provider cannot bill a payer until enrollment is active, so every day between a provider being ready and being enrolled is billable care that never happens, on a conservative floor roughly $10,122 a day per physician. Unlike a late payment, this revenue is not delayed, it is gone, because you cannot retroactively bill for a period you were not enrolled. A practice that starts enrollment late, or lets it stall, is leaking this every single day without a single entry appearing on the P&L. The fix is treating enrollment as the critical path it is, on the 120-day plan, and the full cost is derived in what a credentialing delay costs.

Leak 3: the money written off in silence

The third leak is earned revenue abandoned. Denials are rising, and the top cause is preventable bad data Experian, 2025, but the quieter loss is what happens after a denial: most are never appealed, even though private-payer denials are overturned on appeal more than half the time Premier. Every winnable denial left unworked is money you already earned, written off without a fight and without a trace on the P&L, because a claim that is never resubmitted simply never becomes revenue. The fix is a system that makes appealing the default rather than the exception, worked with the free denial and AR tracker; the odds are in the appeal success data and the underlying denial numbers in the denial statistics.

Find your biggest leak in 15 minutes

The free Leak Audit measures where your money is actually slipping, then gives you one recommendation.

Start with a free Leak Audit

How to find yours

You do not have to guess which leak is largest, you can measure all three. For Leak 1, track the hours your staff and physicians spend on prior auth and claim rework in a normal week, and multiply by what that time costs. For Leak 2, measure the days between each provider being ready and being able to bill each payer, and multiply the gap by daily billable value. For Leak 3, pull your denial count and the share you actually appealed; the unappealed winnable ones are the leak. Do this once and you will have three numbers your P&L never showed you, and three specific places to stop the loss. That is exactly what the free Leak Audit does in twenty minutes, and the summary table below is where to start looking.

The three hidden leaks, sized and detected
Leak	Rough size	How to detect it
Time never billed	~13 hrs/week/physician on prior auth, plus ~$57.23 per denial reworked	Track admin hours with no billed output
Revenue never started	~$10,122/day/physician of enrollment delay	Measure ready-to-bill lag per payer
Money written off	54%+ of denials are winnable, most never appealed	Compare denials to appeals filed

Where to go next

The Zero-Slip Prior Auth System: Exactly What $1,250 Buys (Full Scope) live
The full scope of the Zero-Slip Prior Auth System: a 14-day build in your own tools, the.
Payer Enrollment for a New Practice: The 120-Day Plan live
The 120-day payer enrollment plan for a new practice: which payers to submit first, parallel.
$10,122 a Day: What a Credentialing Delay Actually Costs live
A credentialing delay costs about $10,122 a day per physician. Here is the math from published.

Find the leak before you fix it

Two ways to start, both free.

Run the free Rescue Kit and its tools yourself, or book a 20-minute Leak Audit where we put a real number on what this is costing, using your own volume. A diagnosis, not a pitch.

Book a 20-min Leak Audit Get the free Rescue Kit

Frequently asked questions

What is revenue leakage in a medical practice?

Revenue leakage is money the practice earned or could have earned that quietly never arrives: time paid for but never billed, revenue that never starts because of enrollment delay, and claims written off instead of worked. It does not appear as a loss on the P&L because it shows up as an absence, not a line item.

Why doesn't revenue leakage show up on the P&L?

Because a P&L records what happened, not what should have. Hours lost to admin, a claim never resubmitted, a delayed enrollment, none of these post as an expense. They lower the top line invisibly, which is why they persist for years unnoticed.

What is the biggest hidden revenue leak?

It varies by practice, but the three largest are usually staff and physician time consumed by prior auth (about 13 hours a week per physician), revenue delayed by credentialing and enrollment lag, and denied claims that are never appealed even though most appeals succeed.

How much time does prior authorization actually cost?

About 13 hours a week, per physician, of staff and physician time (2025 AMA Prior Authorization Survey). That is a paid cost with no billed output, which is exactly why it leaks: you pay for the hours and bill for none of them.

How do denied claims become a hidden leak?

Because most denials are never appealed, even though private-payer denials are overturned on appeal more than half the time. Every winnable denial left unappealed is earned revenue written off in silence, and it never shows up as a loss.

How do I find revenue leakage in my own practice?

Measure three things: hours your staff spend on prior auth and rework, days between a provider being ready and being able to bill each payer, and the share of denials you actually appeal. Each gap is a leak you can size and close.

Sources

2025 AMA Prior Authorization Survey. ama-assn.org
Premier, 2023. premierinc.com
Experian, 2025. experian.com