Payment posting is one of the quietest jobs in US healthcare, and one of the most important. Every payment, adjustment and denial a provider receives has to be recorded against the right claim. If posting is wrong, everything after it goes wrong: patients get incorrect bills, AR callers chase claims that were already paid, and real denials are missed.
It is also a good non-voice entry point into RCM for detail-oriented graduates. This guide explains what payment posters do, the documents they work with, the skills employers look for and the questions you will face in the interview.
Where payment posting fits
After a claim is submitted, the payer adjudicates it and sends a remittance explaining the decision, along with the payment. Payment posting records that outcome in the provider’s billing system. It comes after claim submission and before denial management and AR follow-up in the revenue cycle.
ERA vs EOB
| ERA (electronic remittance advice) | EOB (explanation of benefits) | |
|---|---|---|
| Format | Electronic file (the 835 transaction) | Paper or PDF document |
| Posting method | Often auto-posted by the billing system, with exceptions posted manually | Posted manually by reading each line |
| Typical work | Reviewing auto-posting exceptions, unmatched payments, denials | Entering paid amounts, adjustments and reason codes line by line |
What a payment poster does each day
- Posts insurance payments: paid amount for each claim line.
- Posts adjustments: contractual write-offs (for example CO-45, charge exceeds the allowed amount) and other adjustments with the correct reason codes.
- Transfers patient responsibility: deductible (PR-1), coinsurance (PR-2) and copay (PR-3) moved to the patient’s balance.
- Posts denials (zero-pay lines): records denial codes so the denial team can work them.
- Handles secondary billing: after the primary payer pays, the remaining balance may be billed to a secondary insurance.
- Posts patient payments received by card, cheque or online.
- Reconciles: matches total posted amounts with the deposit or EFT received for each batch.
- Flags problems: overpayments, refunds, takebacks (recoupments) and unidentified payments.
A posting example
A claim line is billed at 200. The ERA shows: allowed amount 120, paid 96, CO-45 adjustment 80, PR-2 coinsurance 24. The poster records a payment of 96, a contractual write-off of 80 and a patient responsibility of 24, leaving a zero insurance balance and 24 billed to the patient. If the poster wrongly wrote off the 24, the provider would lose money; if they posted it as still due from the payer, an AR caller would waste time chasing it.
Skills employers look for
- Accuracy and concentration: posting is measured on both speed and quality.
- Number and typing speed, including the numeric keypad.
- Understanding of EOB/ERA layouts, reason codes and group codes.
- Excel basics: filters, lookups and reconciliation.
- Practice management or billing system experience is a plus.
Who can apply
Most employers hire graduates from any stream, with commerce graduates often a natural fit because of the reconciliation work. Freshers are trained on the client’s system and payer formats. Experience in data entry, accounts or any billing role helps.
Interview questions to prepare
What is payment posting?
Recording payments, adjustments, patient responsibility and denials from ERAs, EOBs and patient payments against the correct claims in the billing system.
What is the difference between ERA and EOB?
An ERA is the electronic remittance that can be auto-posted; an EOB is a paper or PDF explanation that is posted manually.
What does CO-45 mean?
The charge exceeds the fee schedule or maximum allowable amount; the difference is a contractual adjustment the provider writes off.
What are PR-1, PR-2 and PR-3?
Patient responsibility for deductible, coinsurance and copay respectively.
What is a recoupment or takeback?
When a payer takes back money it paid earlier, often by deducting it from a later payment, because of an overpayment or reprocessing.
What will you do if the deposit total does not match the posted total?
Recheck the batch for missed or duplicate postings, wrong amounts and payments posted to the wrong account, then escalate any unexplained difference according to the process.
Career growth
Payment posters move into denial management, AR analysis, credit balance and refund handling, quality auditing, training and reporting roles. Learning the full cycle opens many doors. See career growth in US healthcare RCM.
Frequently Asked Questions
What is payment posting in medical billing?
Payment posting is recording insurance and patient payments, contractual adjustments, patient responsibility and denials against each claim, using ERAs, EOBs and payment records.
Is payment posting a voice or non-voice process?
It is a non-voice process focused on accuracy and data entry.
Can freshers get payment posting jobs?
Yes. Many employers hire graduates from any stream and train them on payer formats and billing systems.
What is denial posting?
Recording zero-pay or denied claim lines with their reason codes so the denial management team can review and act on them.
What skills are needed for payment posting?
Accuracy, numeric typing speed, understanding of EOB and ERA formats and reason codes, and basic Excel for reconciliation.