Tip Adjust {#pax-aio-pymnt-txn-tip-adj-onreceipt-sale-intro}
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Use this information to process a tip adjust. This is a required follow-on transaction after processing a sale with on-receipt tipping. The tip adjust request must be sent within 24 hours to capture the transaction.  
After the original sale transaction is pre-authorized, the customer writes the tip or total amount on the printed receipt. The tip adjust request must be submitted with the tip amount or with `0`, if no tip was provided. The tip adjust amount is limited to 20% of the original transaction amount. Requests for higher amounts will be rejected. A follow-on tip adjust request is then sent to capture the additional tip amount. This transaction is also called an *overcapture*.  
For more information, see [Sale with On-Receipt Tipping](/docs/vas/en-us/pax-all-in-one/integration/all/na/pax-all-in-one/pax-aio-payment-txn-intro/pax-aio-payment-txn-sale-on-receipt-tip-intro.md "").