Is there something I'm missing, when I match a transaction to an invoice, I add a charge to cover the cost which results in a 0.00 but when I go to finish I get an error

Hi there, rkgrahamandsons. I understand you're having challenges matching your bank transactions. I'd be glad to assist you on recording your bank transaction with bank charges.

If you already created an invoice amounting to £70.00. You can mark the invoice as paid.

Here's how:

1. Click the + New Icon. Then, select Receive payment.
2. Choose a customer and look for the invoice.
3. Under the Deposit to field, click the dropdown arrow.
4. Select Undeposited Funds.
5. Select Save and close.

After marking the invoice as paid, you can record the payment through the Bank deposit.

Here's how:

1. Click the + New icon, then select Bank deposit.
2. Look for the payment that you recently recorded, then click it.
3. On the Add funds to this deposit filed, under Received from. Choose the customer.
4. You can choose any account depending on where you want to record it.
5. Enter the amount -£1.50. 
6. Select Save and close.

This way, you'll see a total of £68.50 for that transaction.

After recording, you can match the transaction in your Bank transaction. If there is no suggested match, you can manually match it.

Furthermore, you can proceed with reconciling your account after you categorize all your transactions in QBO.

If you have further questions about matching your bank transactions in QBO, don't hesitate to click the Reply button. I'm always here to help you.