First of all, you should be able to recognize the essentials of a good invoice template sample. Certain features are common to most small business receipt template. For instance, it has to have the name of the company and its address, as well as the contact information of the customer. It necessarily describes the kind of services offered and the price agreed for providing them. Usually, companies include their logo in the customer invoice template and, depending on the nature of business, they may mention the payment terms and the breakdown of goods or services offered.
Writing templates are widely available online. A Google search will lead you to websites that offer downloads of different templates. Some of them are even free. These prepared formats often come in predetermined categories and include sections like the title, introduction, list, and ending paragraph. All you have to do is fill up these sections depending on your chosen content.