Amicus Accounting - How do I record an overpayment from a client?

There are a few ways of handling this:

• Post the entire amount including the overpayment to the client file and leave a credit on the client file A/R balance to offset future bills. To do this, post the entire amount of the payment as a receipt. You might want to post this as two entries - post one entry for the amount required to pay the invoice, and then post another as the overpayment and indicate this in the description of the firm receipt. This leaves a credit on the client's A/R balance and deposits the entire amount to your general bank.
• Post the difference to the client's WIP to offset unbilled expense entries. To do this, post a regular firm receipt for the amount required to pay the invoice. Then, post another receipt selecting the Unbilled Expenses option on the firm receipt screen. This posts the credit to the client's WIP expenses balance (reducing the expense balance) and deposits the payment in your general bank.
• Post the difference to the client's WIP and then writes a firm check to reimburse the client for the difference. Use this option if you want to reimburse the client for the excess amount. Follow the instructions above to pay the outstanding invoice and post the excess to the client's Unbilled Expense balance. This posts a credit to the client's WIP expenses balance. Then, post a firm check to the client file for the amount of the excess. This offsets the amount of the receipt to the WIP expenses, (leaving the expenses balance back where you started), and removes the excess funds from your general bank.