You should mention the payment terms maximally beneficial to you every time.

You should mention the payment terms maximally beneficial to you every time.

Others

For example, ask the client to pay the full fee paid in advance. If the client finds that unacceptable, offer 50 percent on acceptance and 50 percent in 45 days (no matter what the length of the project). If you start with nothing down and gradual payments, I can guarantee that you’ll wind up searching for your fees well after the project is over, which means you’ve received much less money than someone else getting the same fee paid in advance. Terms beneficial to you equal higher profits.