Overcapture

What overcapture is

When you authorize a card payment, the authorization is for a specific amount. Overcapture lets you later capture a higher amount without obtaining an additional network authorization. The customer’s final charge is the amount you capture, not just the original authorized amount.

Restaurants use it to add a tip written after the card is authorized. Other examples include substitutions in an online grocery order, delivery changes, or incidentals added to a hospitality bill. Overcapture is different from incremental authorization, which requests approval for an increased amount before capture.

Overcapture can handle a changing total, but the amount above the authorization still carries dispute risk.

How it works

You authorize the initial amount, then submit a capture for the final total. For example, a $100 authorization followed by a $120 capture is a 20% increase (illustrative). That example does not mean the increase is allowed for every card or business.

Card-network rules set limits based on factors such as the card network, your merchant category, and the transaction. Some overcapture arrangements apply only to online card payments; rules for in-person tips differ. Going beyond an applicable limit can lead to a rejected capture, network non-compliance fees, or a chargeback on the amount above the authorization.

A changing final total

This example explains the arithmetic only. Whether a $120 capture is permitted depends on the card network and your merchant category.

What it means for your business

Overcapture helps you collect a final total that was not known at checkout, without asking the customer to complete another payment. It does not make the added amount risk-free: the customer’s issuer did not approve that extra amount when the original authorization was made, and an issuer can dispute it.

The research notes do not establish a standard overcapture fee or a general processing-cost saving. Treat it as a way to handle a changing final amount, not as a way to lower your card fees. If the increase exceeds the network’s limit, an authorization adjustment or a new payment is the safer route.

What the customer sees

The customer’s pending authorization does not immediately show the higher total. After the captured amount settles, the initial pending amount is updated to reflect the final charge. In some systems, the larger capture clears and settles as one transaction.

Reconcile the final captured amount against the original authorization and the customer’s receipt. A mismatch, such as a $120 capture against a $100 authorization, is a reason to confirm the tip or other added charge and check that it fell within the applicable network rules.

What you can actually change

1. 01
   Estimate the full total. Include expected tax, shipping, tips, and other known charges in the initial amount when you can. A closer authorization reduces the gap between what the customer approved and what you capture.
2. 02
   Check your transaction rules. Confirm that overcapture is enabled for your payment flow and that your network and merchant category allow it. Do not assume a limit that applies to one card type or business applies to another.
3. 03
   Adjust before capture. When the final amount exceeds the permitted overcapture limit, request an authorization adjustment or take a new payment instead of capturing beyond the allowed amount.
4. 04
   Keep the supporting record. Retain the receipt, tip confirmation, or itemized record that explains the difference between the authorized and captured totals. Reconcile those records against your settlement.

Frequently asked questions