Thank you for providing the details of your outstanding transactions, @Lindsey B.

You can create a journal to write off the amount of your outstanding transactions in QuickBooks. However, you'll need to consult your accountant first before trying out this option to ensure if this is the best practice for your business.

Here's how you can write off the amount for Accounts Receivable:

1. Create a journal entry.
2. Change the date and fill in the entry number if necessary.
3. For customers with an over-payment, select the  Account field and choose Accounts Receivable from the drop-down list.
4. Enter the amount under the Debit column, tab to the Name column and select a Customer Name from the drop-down list.
5. In the next line, select the offset account and enter the amount under the Credit column. The offset account is usually an Expense account.
6. For customers with an underpayment, select the Account field and choose Accounts Receivable.
7. Enter the amount under the Credit column, tab to the Name column and select a Customer Name from the drop-down list.
8. In the next line, select the offset account and enter the amount under the Debit column.
9. Once done, select Save & Close.

Once done, apply the JE to the existing credit/debit by following the steps below:

1. Go to the Plus icon and select Receive payment.
2. Enter the name of the customer in the Customer field.
3. Select the JE created in the Outstanding Transactions.
4. Under the Credits section, select the available credit and select Save and close.

For Accounts Payable, here's how:

1. Create another JE.
2. For vendor with over-payment, select the Account field and choose Accounts Payable from the drop-down list.
3. Enter the amount under the Credit column, tab to the Name column and select the vendor name from the drop-down list.
4. In the next line, select the offset account and enter the amount under the Debit column.
5. For vendor with underpayment, select the Account field and choose Accounts Payable from the drop-down list.
6. Enter the amount under the Debit column, tab to the Name column and select the vendor name from the drop-down list.
7. In the next line, select the offset account and enter the amount under the Credit column.
8. Select Save & Close.

Then, apply the journal entry to the existing debit/credit.

1. Go to the Plus icon and select Pay Bills.
2. Select the bill and choose Make payment.
3. This will automatically apply to the outstanding bill and JE created.
4. Click Save and close.

I'm always here if you need further help with this process. Take care and have a nice day!