Funding Around the Insurance Reimbursement Lag

The insurer pays in 90 days. Your staff gets paid every two weeks. That mismatch — not low patient volume, not weak billing — is the single most common cash flow problem in medical, dental, and veterinary practices, and it's a timing problem, not a revenue problem. A practice that's fully booked can still miss payroll if enough claims are sitting in adjudication at the same time. The fix isn't collecting faster — payer timelines aren't yours to control — it's funding that's sized against what actually lands in your account, not against what's owed to you on paper.

Byzfunder is a direct lender — we fund from our own balance sheet, so a file for a medical, dental, or veterinary practice gets one application and one decision, not a submission into a syndicate of outside capital sources. That matters for this specific problem because the underwriting read is different: instead of asking a practice to prove out how its accounts receivable will convert to cash, we look at what has already landed in the business checking account. For a practice riding the reimbursement cycle, that's the number that actually describes the business.

Why "90 Days to Get Paid" Isn't an Exaggeration

Patients don't create your cash flow problem — payers do. A single claim moves through several distinct stages before it becomes a deposit, and any one of them can add weeks.

The Claims Adjudication Cycle, Stage by Stage

Clean-claim submission. A claim only starts its clock once it's submitted correctly the first time — correct CPT/HCPCS or CDT codes, correct modifiers, correct patient and provider identifiers. Front-office and billing staff run claim scrubbing before submission specifically to avoid rejections, but scrubbing adds its own day or two before the claim ever reaches the payer.

Payer processing windows — and they are not the same across payers. Commercial insurers typically process clean claims in 15-45 days depending on the plan and state prompt-pay rules. Medicare runs on its own statutory timeline, generally 14-30 days for electronic claims. Medicaid varies by state program and can run considerably longer, especially for managed Medicaid plans that subcontract adjudication. A practice billing all three simultaneously is really running three different clocks on every batch of claims it submits.

Coordination-of-benefits (COB) checks. When a patient has more than one payer — common with Medicare Advantage plus a supplemental plan, or a minor covered under both parents' plans — the claim has to route through a COB determination before either payer will pay its share. That routing step alone can add 2-4 weeks, and it happens on top of, not instead of, normal processing time.

Prior-authorization holds. Procedures that require pre-approval don't start their reimbursement clock at the time of service — they start it whenever the authorization actually clears, which can be before or after the visit depending on how the request was handled. A retroactive authorization dispute can freeze a claim for a full billing cycle or more.

Denial and resubmission. This is where "90 days" stops being unusual and starts being normal. A denied claim — for a coding mismatch, a missing modifier, a medical-necessity question, or a COB conflict — doesn't just get resubmitted overnight. It goes back through internal review, gets corrected, gets resubmitted, and then restarts a version of the same processing window it was just in. Industry data consistently shows a meaningful share of claims get denied on first submission, and even a well-run billing operation is going to be carrying a rotating pool of claims in some stage of appeal at any given time. Stack a submission window, a COB check, and one denial cycle on a single claim, and 90 days from date of service to deposit is not the exception — it's a realistic middle case.

Multi-Payer Complexity Makes the Cash Pattern Lumpy, Not Just Slow

A practice doesn't bill one payer on one timeline — it bills dozens simultaneously, and each one runs its own adjudication clock, its own fee schedule, its own denial rate, and its own remittance cadence (some payers batch-pay weekly, others biweekly or monthly). Total reimbursement inflow in any given week is the sum of however many of those independent cycles happen to resolve that week — not a smooth, predictable trickle.

That's why a practice can have completely steady patient volume — same number of visits, same case mix, month over month — and still see deposits swing wide from one week to the next. The lumpiness isn't a sign anything is wrong operationally. It's what dozens of independently-timed payer cycles look like when you add them together.

The Structural Mismatch: Fixed Calendar vs. Variable Reimbursement

None of the practice's fixed costs wait for a claim to clear. Payroll runs weekly or biweekly on the calendar, not on the reimbursement calendar. Rent is due the first of the month. Malpractice premiums and EMR/practice-management software fees bill on their own fixed schedules. A practice can be fully booked, doing excellent clinical work, and still hit a week where three separate payer cycles are mid-adjudication and payroll is due regardless.

This is the actual problem this page is about: not low revenue, not poor billing, not undercapitalization in the general sense — a structural timing mismatch between a fixed-cadence cost base and a variable, multi-payer-driven revenue stream. (Separate issues like credentialing delays, equipment purchases, or staffing scale-up are real for healthcare practices too, but they're a different problem with a different shape — this page is specifically about the reimbursement-cycle gap.)

Why Bank Underwriting Reads This Wrong

A bank looking at a medical or dental practice's financials sees healthy revenue on the P&L and a large accounts receivable balance on the balance sheet — and treats that AR as an asset the same way it would treat inventory or equipment. But AR on a medical practice's books is earned-not-collected revenue sitting in an adjudication pipeline the practice doesn't control. Some of it will convert to cash in three weeks. Some of it will sit for 90 days. A small slice will get written off after a failed appeal. A bank doesn't have a fast, standardized way to determine which portion is which — so bank underwriting typically falls back to trailing full-year financials, AR aging buckets, and often a collateral requirement, none of which actually answer the operating question: how much cash is genuinely available to this practice, and when.

That's the underwriting gap this page is really about.

How Deposit-Based Underwriting Reads It Correctly

Deposit-based underwriting doesn't ask a practice to prove how its AR will convert. It looks at a rolling window of actual business bank deposits — typically the trailing 3-6 months — and reads the pattern that's already there. Every payer's timeline, every COB delay, every denial-and-resubmission cycle is already baked into that deposit history, averaged out over the window. The practice doesn't have to explain the lag; the deposits already show it.

That's the core mechanism: instead of underwriting a promise (AR that hasn't converted yet), deposit-based underwriting reads a fact (cash that has already landed). For a practice whose revenue is real but whose timing is lumpy because of multi-payer adjudication, that's a materially more accurate signal than a bank's AR-aging snapshot.

Byzfunder offers two ways to put that signal to work for a practice managing this exact gap:

• MCA (purchase of future receivables). We purchase a portion of the practice's future receivables at an agreed factor rate, sized against the deposit pattern we can already see. FICO floor of 525. This is not a loan and repayment is not framed as a fixed monthly obligation — remittance is structured against the business's ongoing receivables flow, and how that flow is structured is set out in the funding agreement for each file.
• ByzFlex — revenue-based revolving capital. For a practice that wants standing access to bridge capital across multiple reimbursement cycles rather than a single advance, ByzFlex functions like a line of credit: draw against it as gaps open up between claim cycles and payroll dates, and access replenishes as the business performs. FICO floor of 550.

Credit is still reviewed on every file — deposit history doesn't replace that, it supplements it with a more accurate read of the business's actual cash position.

A Worked Example (Illustrative)

The figures below are illustrative only — meant to show the shape of the pattern, not a specific practice's actual numbers.

Picture a dental practice with steady patient volume and a payer mix split roughly across three commercial insurers, Medicare, and a managed Medicaid plan. Here's what a rolling deposit pattern might look like over a five-month window:

• Month 1: $142,000 in deposits — a normal month, most claims clear inside 30-45 days.
• Month 2: $98,000 — two large commercial claims hit a COB check and slip past month-end.
• Month 3: $187,000 — Month 2's delayed claims land, stacked on top of Month 3's normal cycle.
• Month 4: $121,000 — a batch of Medicaid claims gets denied for a coding issue and goes into resubmission.
• Month 5: $158,000 — the resubmitted batch clears, along with a normal month of commercial and Medicare claims.

Averaged out, that's roughly $141,000/month — a healthy, viable practice. But look at Month 2 and Month 4 in isolation: payroll, rent, and the EMR subscription still came due in those months regardless of what the payers were doing. That's the exact gap deposit-based funding is sized to bridge — not because the practice is underperforming, but because the reimbursement timeline and the payroll calendar were never going to line up perfectly in the first place. Funding sized against the 5-month average, drawn down in the lean months and not needed in the flush ones, is what keeps the fixed-cadence obligations covered without the practice having to chase its own AR.

What Byzfunder Looks At For A File Like This

• Business bank deposits over a rolling window (typically 3-6 months) — the primary signal, since it already reflects your real reimbursement pattern.
• Time in business — an established billing and claims history makes the deposit pattern more predictable to read.
• FICO — 525 floor for MCA, 550 floor for ByzFlex. Credit is still reviewed on every file.

We're underwriting the business's bank account, not your patients' charts — the application is built around business financials only; no patient health information is part of the process.

FAQ

Do you look at my AR, or my deposits? We underwrite against actual business bank deposits over a rolling window, not accounts receivable. Your AR represents claims that haven't converted to cash yet and can sit for months depending on the payer — your deposit history already shows what's actually landing in the account, lag and all.

What if my payer mix shifted recently — more Medicaid, less commercial, or vice versa? A shift in payer mix will change your deposit pattern over time, and a fresh deposit window will reflect that. There's no separate payer-mix penalty in how we read the file — we're reading what's actually in the account during the window we're looking at.

Does a slow insurer disqualify me? No. Slow adjudication from any individual payer — commercial, Medicare, or Medicaid — is normal and expected across a multi-payer practice. It's exactly the kind of lumpiness deposit-based underwriting is built to read, not a disqualifying factor.

How is this different from factoring my claims? Factoring means selling specific individual claims or invoices to a third party and managing that relationship claim by claim. Deposit-based MCA or ByzFlex doesn't require you to sell or assign individual claims at all — funding is sized against your overall deposit history, and you keep managing your own billing and payer relationships exactly as you do today.

Will you ask for collateral? No. This is unsecured funding — there's no collateral requirement, and no lien against equipment or property tied to the advance.

How fast can funding actually happen? Once a file is complete, decisions and funding can move as fast as 24-48 hours — meaningfully faster than a bank AR-based line, which typically runs weeks to months given its own underwriting process.

Do you need to see patient records or health information? No. The application is built entirely around business financials — bank deposits, time in business, and credit. No patient health information is part of the underwriting process.

Bridge the Gap Between Claims and Payroll

The reimbursement cycle isn't going to get shorter — payers run their own timelines and that's not going to change. What can change is whether your practice's cash position is read accurately. Byzfunder reads what's actually in your account, not what's stuck in adjudication.

For California, term loans are arranged or made pursuant to the California Financing Law — License Number: 6031098.

ByzFunder NY LLC funds small businesses directly from its own balance sheet; advance amounts, factor rates, and terms vary by file and are not guaranteed. This is educational content, not an offer or commitment to fund.