Here is the "Terms of Service" that describes how I invoice for my services.

Terms Of Service

Invoicing for Software Design Services

The Agreement I use to contract for software design projects must be signed by Customer and myself. I also use a Time Sheet Log in conjunction with my Agreement. The Time Sheet Log must be initialed and dated by myself and Customer when recording the hours for services rendered.

Vendor accepts cash, check, money order, or official bank check as means of payment.

Vendor bills for custom software design services rendered using progress payment billing cycles. I will submit an invoice for every 10 to 20 hours of services rendered. The specific number of hours for each progress payment will be specified in the Agreement by the items of work to be completed before payment is required. Additional work cannot proceed until the current block of completed hours of work has been paid in full. I will submit an invoice if the hours of work are less than 10 hours if they represent the end of the current custom software design engagement.

The hourly labor rate of the Vendor is ________ USD($) per labor hour. Hours for custom software design services rendered will be noted on a Time Sheet Log along with the date worked and the initials of both Customer and Vendor. This is subject to change in the future.

Payment for each progress payment billing cycle for custom software design services rendered is due within 30 days after which interest may be charged at a rate up to the highest amount permitted by Ohio law.

Customer acknowledges that Vendor shall not be required to perform any custom software design services contemplated by this Agreement while Customer is in default of its financial obligations under this Agreement.

Invoicing for Computer Repair Services

The Vendor will give the Customer a fixed price estimate for computer repair services based on the nature of the work and ________ USD($) per labor hour. Payment in full will be expected upon the successful completion of the work by Vendor. As for Software Design Services, Vendor accepts cash, check, money order, or official bank check as means of payment.