Which locum terms affect a practice’s cash?
The ones that decide when money goes out and when it comes back: the agency rate and invoice schedule, credentialing status, claims processing time, denials and resubmissions, and any travel or housing costs passed through. Understanding each lets a practice size its cash plan before the provider starts.
| Term | Plain-English meaning | Why it matters to cash |
|---|---|---|
| Agency rate | What the staffing agency charges for the provider, often per day or per hour | Sets the largest cost line for the coverage period |
| Invoice schedule | How often the agency bills, such as weekly | Costs arrive before insurer payments do |
| Credentialing | A payer approving the provider to bill for their services | Delays can hold claims |
| Claims lag | Time between the visit and the insurer paying | Creates the cash gap |
| Denial | An insurer refusing a claim, often for fixable reasons | Adds weeks while the claim is corrected and resubmitted |
| Pass-through costs | Travel, lodging or malpractice cover billed on top of the rate | Easy to leave out of the budget |
| Cash gap | Agency bills paid minus insurer payments received so far | The amount a practice needs to bridge |
| Working capital | Short-term funding for operating costs | A common way to bridge the gap |
| Line of credit | A revolving limit you draw on as needed | Useful when coverage repeats |
How do these terms fit together?
A locum starts, the agency invoices on its schedule, the provider sees patients, and claims go out under the arrangement the payer allows. Insurers pay after processing, so the practice funds the early weeks itself. Denials and credentialing delays stretch that period.
For the billing side in detail, see how insurance billing works for a locum, and for the budget side, funding locum tenens coverage.
How do I size the cash a locum will need?
Add the agency invoices for the weeks before insurer payments normally arrive, add pass-through costs, then add a cushion for denials. That total is the bridge a practice needs, which is usually less than the full cost of the coverage period.
Updated October 24, 2026 · MedicalBizFunding Team
Frequently asked questions
What is the difference between credentialing and enrollment?
Credentialing verifies a provider’s qualifications; enrollment is the payer adding them to bill. Practices usually need both before routine claims pay.
Why do claims take weeks to pay?
Insurers process claims in batches and may request corrections. Plan on weeks, and use your own history.
Is a line of credit or working capital better for locum coverage?
A line of credit fits coverage that repeats; working capital fits a one-time bridge.
Does applying commit a practice to an offer?
No. You can review options and decline.