Deposits and Project Invoices: Billing a Job in Stages Without Double-Charging

A common project disagreement stems not from pricing, but from arithmetic: the client has made a deposit upfront, yet the final invoice still reflects the full project value. This issue can be prevented by ensuring each invoice clearly displays the total amount, what has been paid, and what remains unpaid. A deposit serves multiple purposes: it confirms the client's commitment, funds the initial costs, and limits the contractor's exposure if the project stalls.

A typical deposit ranges from 20% to 50%, depending on factors such as the client's relationship, the complexity of the work, and the lead time required. It is essential to clearly state whether the deposit is refundable or non-refundable in the agreement. If it is non-refundable, specify what the deposit covers and the consequences of cancellation.

The deposit invoice should be distinct from the final invoice. It should prominently display the word "Deposit" in the line description, along with the percentage of the project total. The remaining balance should be outlined, along with the due dates for subsequent payments. The deposit invoice should be separate from the final invoice, with the full arithmetic clearly stated to avoid confusion.

When dealing with scope changes during a project, it is crucial to document any additions and communicate the impact on cost and schedule. These changes may necessitate separate invoices or adjustments to existing ones. Keeping deposits separate from revenue ensures that the deposit is treated as a liability until the project is completed, and revenue is recognized as the work progresses. This approach minimizes the risk of double-charging and promotes transparency in the billing process.