Invoice Book Sizes

Jun 05, 2025

Invoice books can come in various shapes and sizes, depending on what the company or organization prefers or deems appropriate. Yet it is still important to choose an appropriate invoice book size in order to properly organize the sales invoices.

Invoice book sizes refer to the standard dimensions used for printed invoice pads or books that record sales transactions, receipts, or services rendered. Common sizes include A5 (5.8″ x 8.3″) and A4 (8.27″ x 11.69″), offering varying space for detailed entries. Choosing the right invoice book size ensures clarity, portability, and easy storage. Proper sizing helps businesses maintain organized records, present professional documentation, and streamline accounting and billing processes effectively.

Standard Invoice Book Sizes

US Letter Size

Invoice books are just like any other formal document that businesses or establishments use during transactions with buyers. And most formal documents require a standard and universal paper size. The most common document size for invoice books is US Letter size which measures 8.5 × 11 inches or 215.9 × 355.6 mm.

A4 Size

With a minuscule difference in measurement, the A4 document size is almost the same dimensions as the US Letter size. It measures 8.27 × 11.69 inches or 210 × 297 mm, which makes it also ideal for invoice books and other accounting documents. As for page orientation, the usual format used is portrait.

Legal Size

Another option for invoice book sizes is Legal size. Longer than the usual US Letter size, this size measures 8.5 inches in width and 14 inches in height and it is used for legal contracts and spreadsheets. However, legal size is less commonly used for invoice books or receipt books.

Invoice Book Sizes for Print

The traditional form of creating invoice books has always been a printed pad. The right invoice book size for printing would depend entirely on the business’ needs and preferences. However, it is important to note that it is recommended to use the standard document sizes. The US Letter paper size of 8.5 inches × 11 inches or the A4 paper size, which measures 8.27 inches × 11.69 inches, are still the best options you have. In some cases, however, a half-sheet paper size may be used; this document size measures 5.5 inches × 8.5 inches.

Digital Invoice Templates

Invoice Book Sizes for MS Word

Perhaps the most popular word-processing software is Microsoft Word. If you are using MS Word to create or customize an invoice book template, it is best to set the document size to the default size which can either be US Letter or A4. An A4 document size measures 210 mm ×297 mm while a Letter size has dimensions of 215.9 mm × 279.4 mm. In centimeters, the standard US Letter size measures 21.6 × 27.9 cm and an A4 paper size measures 21 cm in width and 29.7 cm in height.

Invoice Book Sizes for Apple Pages

If you are a Mac user or you’re familiar with Apple devices, then Apple Pages is an alternative word processor that you can use. Apple Pages can be used on iMac, MacBook, iPad, or even iPhone. If you are using Pages, the recommended size for an invoice book is the US Letter size of 8.5 × 11 inches. And since they are so similar in dimension, an A4 paper size (210 × 297 mm) may be used as well.

Invoice Book Sizes for Google Docs

Users who prefer to work online will find Google Docs as a welcome alternative to Microsoft Word. To create and edit files using Google Docs, you only need to have an active Google account. As with the popular word processors, the standard format for an invoice book in Google Docs is the default US Letter size, measuring 8.5 × 11 inches. An A4 paper size, which has dimensions of 8.27 × 11.69 inches, can also be an appropriate substitute. If you want to change or modify the size settings, simply adjust the document size under the page set up tab. Lastly, it is worth noting that there is no one right size for an invoice book since it mostly depends on the company’s needs.

Invoice Book Sizes FAQs