Hi can I have some advice. We have a client that is paying us in advance of work with cheques of £1000 at a time. Is there a way we can make this a credit on account?

We can record a credit note to your client, @estacare.

By creating a credit note, your client can use this as a payment to an invoice. I'll show you how:

1. Go to the + New button.
2. Choose Credit note or Give credit.
3. Enter the customer’s name, then fill out the required fields:
4. Once done, click Save and close.

Then, you can apply the credit note to an invoice. Here's how:

1. Choose + New.
2. Click Receive payment or Receive invoice payment.
3. Enter the customer’s name, then fill out the required fields:
4. Leave the fields Payment method, Reference no, Deposit to, and Amount received as blank.
5. In the Credits section, select the credit note you created, then in the Payments column, enter how much credit your customer wants to use.
6. Click Save and close once finished.

In case you need tips on how to record money you return to your customer, you can check this reference: Record a customer refund in QuickBooks Online.

Feel free to drop by anytime if you have queries in managing customer transactions in QBO. I'm here to help. Stay safe always.