Client paid for an invoice but needs some travel cost reduces.Do I void the invoice,issue new invoice?What happens to over payment can I apply to other invoice ?

Hi,

That's a great question. I'll gladly assist you with your invoice. QuickBooks online offers a flexible platform where you can manage your sales operations in a few easy steps. If your client paid for an invoice and you need to make some changes at a later date, you don't have to void the transaction or issue a new one. I suggest editing the invoice instead, this will adjust the amount and create a credit on your client account that can be applied to a future invoice.

To edit the paid invoice, do as follows:

1. Select Sales from the left menu
2. Select the Invoices tab
3. Select the invoice you wish to edit
4. Change the amount on the corresponding line item ("Travel Cost" in your example)
5. Select Save and close

This will create a credit on your client's account. The credit will be automatically applied to the next invoice you create for this specific client. If you wish to apply the credit manually at a later date and to a specific invoice , you need to turn off the automated functionality by following these steps:

1. Select the gear icon
2. Select Account and Settings
3. Select Advanced
4. Select Automation
5. Uncheck the box next to Automatically apply credits
6. Select Save
7. Select Done

Let me know if you have any other questions.