Net Collection Rate Calculator

Enter charges, contractual adjustments and payments to get the net collection rate — the honest measure of how much collectible money you actually collect.

Two rates, one honest one

The gross collection rate (payments over charges) mostly measures how inflated the charge master is. The net collection rate divides payments by what was actually collectible — charges minus contractual adjustments — and answers the question that matters: of the money we were entitled to, how much did we get? Enter the three figures and this calculator returns both rates, labelled for what they are.

How to use it

  1. Enter gross charges for the period.
  2. Enter contractual adjustments (the negotiated write-offs).
  3. Enter payments collected — read NCR against the ~95% target.

The formulas

NCR = payments ÷ (charges − contractual adjustments) · GCR = payments ÷ charges

A worked example

$1,000,000 in charges with $350,000 of contractual adjustments leaves a $650,000 collectible base; $585,000 collected is a 90% net collection rate — while the gross rate reads 58.5%. The 90% says the practice is leaking about $65,000 of entitled revenue — to denials, underpayments, bad debt or write-offs — and the sub-95 reading is the signal to find which.

Estimates only — payer contracts, plan documents and the EOB are always the source of truth, and nothing here is billing, legal or medical advice. The calculator runs entirely in your browser: no patient data is entered, transmitted or stored.

Common questions

What’s a good net collection rate?
95–96%+ is the common target for well-run practices. Below 90% usually means a systematic leak — unworked denials, uncaptured underpayments, or patient balances aging out.
Which adjustments count as “contractual”?
Only the negotiated payer write-offs. Bad debt, courtesy discounts and timely-filing write-offs are collectible money lost — counting them as contractual quietly inflates the NCR.
Over what period should I measure?
Use matched periods with a lag — payments against the charges that produced them (a 90–120 day offset), or a rolling 12 months to smooth it.