Evaluated Receipt Settlement (ERS)

Evaluated receipt settlement pays vendors from the PO and receipt alone, skipping the invoice. Here is what it changes for margin drift. Read the full guide.

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Evaluated Receipt Settlement (ERS)

Evaluated receipt settlement, or ERS, is a payment method where the buyer pays a vendor based on the purchase order and the goods receipt, with no invoice required at all. The vendor ships, the buyer records receipt, and payment triggers automatically off the agreed price already sitting in the PO.

ERS removes one of AP's core controls: reading the bill. That trade changes what margin drift looks like on the vendors it covers.

1. What is evaluated receipt settlement?

Evaluated receipt settlement is a procure-to-pay method where payment is triggered by matching the purchase order to the goods receipt, without a vendor invoice entering the process. The system evaluates PO price times received quantity and pays that amount on agreed terms. The vendor still ships and gets paid; it just never sends a bill for AP to key in or reconcile.

It works only where price and quantity are knowable at time of order, which is why it is common for direct materials on standing purchase orders and far less common for services, where scope and hours vary invoice to invoice.

2. Which vendors typically run on ERS?

ERS suits vendors with a fixed catalog price, a stable purchase order, and receipts that are easy to count: raw materials, packaging components, and some maintenance parts. It does not suit vendors billing on variable scope, tiered rate cards, or time and materials, because there is no clean receipt event to price against.

A freight carrier or a staffing vendor rarely qualifies; a corrugate supplier on a blanket PO often does.

3. How does ERS change where drift can occur?

ERS eliminates invoice-price errors on the vendors it covers, because there is no invoice price to get wrong. It does not eliminate drift; it relocates the risk to the purchase order and the contract that fed it. If the PO price is stale relative to the contract, or the receipt quantity is overstated, ERS pays the error exactly as recorded, automatically.

The controls that matter shift from invoice review to PO governance: who can change a PO price, how contract price changes propagate into purchasing, and how receipt quantities are verified against what actually arrived.

  • PO price accuracy: The PO price must track the live contract, including any rate card update, or ERS pays the wrong number with no invoice stage to flag it.
  • Receipt integrity: An inflated or premature receipt entry settles as real, since ERS trusts the receipt as the trigger for payment.
  • Change control: Only authorized users should be able to alter a PO price after issuance, so a contract change cannot be entered incorrectly and paid silently.

4. How should ERS vendors be audited?

Auditing an ERS vendor means checking the purchase order against the underlying contract, not checking an invoice against a purchase order. The relevant questions are whether the PO price matches the current rate card, whether volume tier or rebate terms are reflected in that price, and whether receipt quantities tie to shipping and inspection records.

This is contract compliance work applied one step earlier in the process than usual, matched against the same source documents.

For the wider pattern this sits inside, start with the margin drift guide.

5. Frequently Asked Questions (People Also Ask)

Does evaluated receipt settlement require a vendor invoice?

No. Payment is calculated from the purchase order price and the recorded receipt quantity. The vendor ships and gets paid without ever submitting a bill for that transaction.

Is ERS the same as three-way matching?

No. Three-way matching compares invoice, purchase order, and receipt. ERS removes the invoice from that comparison entirely and pays on PO and receipt alone.

Can margin drift still happen under ERS?

Yes. Drift moves from the invoice to the purchase order and the receipt. A stale PO price or an inflated receipt quantity settles automatically, since there is no invoice stage left to catch it.

Which vendor categories commonly use ERS?

Vendors with a fixed catalog price and a predictable receipt event, such as raw materials or packaging components on a standing purchase order. Variable-scope service vendors rarely qualify.

What replaces invoice review as the control under ERS?

Purchase order governance. That means controlling who can change a PO price, ensuring contract price changes are entered into the PO promptly, and verifying receipt quantities against what actually arrived.

Does ERS reduce AP workload?

It removes the step of keying and matching invoices for the vendors it covers, which is its intended benefit. That workload does not disappear; it shifts to maintaining accurate purchase order prices.

Why doesn't ERS work for services contracts?

Services often bill on variable hours, scope, or usage that is not known at the time the purchase order is issued, so there is no fixed price to receipt against.

How does an amendment to a contract's rate card affect an ERS vendor?

The new rate has to be entered into the purchase order before the next receipt. If that update is missed, ERS keeps paying the old price with no invoice to expose the gap.

1. What is evaluated receipt settlement?

Evaluated receipt settlement is a procure-to-pay method where payment is triggered by matching the purchase order to the goods receipt, without a vendor invoice entering the process. The system evaluates PO price times received quantity and pays that amount on agreed terms. The vendor still ships and gets paid; it just never sends a bill for AP to key in or reconcile. It works only where price and quantity are knowable at time of order, which is why it is common for direct materials on standing purchase orders and far less common for services, where scope and hours vary invoice to invoice.

2. Which vendors typically run on ERS?

ERS suits vendors with a fixed catalog price, a stable purchase order, and receipts that are easy to count: raw materials, packaging components, and some maintenance parts. It does not suit vendors billing on variable scope, tiered rate cards, or time and materials, because there is no clean receipt event to price against. A [freight carrier](/glossary/freight-and-3pl-audit) or a staffing vendor rarely qualifies; a corrugate supplier on a blanket PO often does.

3. How does ERS change where drift can occur?

ERS eliminates invoice-price errors on the vendors it covers, because there is no invoice price to get wrong. It does not eliminate drift; it relocates the risk to the purchase order and the contract that fed it. If the PO price is stale relative to the contract, or the receipt quantity is overstated, ERS pays the error exactly as recorded, automatically. The controls that matter shift from invoice review to PO governance: who can change a PO price, how contract price changes propagate into purchasing, and how receipt quantities are verified against what actually arrived. - PO price accuracy: The PO price must track the live contract, including any [rate card](/glossary/rate-card) update, or ERS pays the wrong number with no invoice stage to flag it. - Receipt integrity: An inflated or premature receipt entry settles as real, since ERS trusts the receipt as the trigger for payment. - Change control: Only authorized users should be able to alter a PO price after issuance, so a contract change cannot be entered incorrectly and paid silently.

4. How should ERS vendors be audited?

Auditing an ERS vendor means checking the purchase order against the underlying contract, not checking an invoice against a purchase order. The relevant questions are whether the PO price matches the current rate card, whether volume tier or rebate terms are reflected in that price, and whether receipt quantities tie to shipping and inspection records. This is [contract compliance work](/guides/margin-drift-vs-legitimate-price-increases-how-to-tell-them) applied one step earlier in the process than usual, matched against the same source documents. For the wider pattern this sits inside, start with the [margin drift](/insights/margin-drift-spend-leakage-guide) guide.

Questions & Answers

Does evaluated receipt settlement require a vendor invoice?

No. Payment is calculated from the purchase order price and the recorded receipt quantity. The vendor ships and gets paid without ever submitting a bill for that transaction.

Is ERS the same as three-way matching?

No. Three-way matching compares invoice, purchase order, and receipt. ERS removes the invoice from that comparison entirely and pays on PO and receipt alone.

Can margin drift still happen under ERS?

Yes. Drift moves from the invoice to the purchase order and the receipt. A stale PO price or an inflated receipt quantity settles automatically, since there is no invoice stage left to catch it.

Which vendor categories commonly use ERS?

Vendors with a fixed catalog price and a predictable receipt event, such as raw materials or packaging components on a standing purchase order. Variable-scope service vendors rarely qualify.

What replaces invoice review as the control under ERS?

Purchase order governance. That means controlling who can change a PO price, ensuring contract price changes are entered into the PO promptly, and verifying receipt quantities against what actually arrived.

Margin Drift Resources