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What is a book-to-bill ratio in financial statements?

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What is a book-to-bill ratio in financial statements?

Idea in short

Businesses love metrics. Executives use metrics to measure the company’s performance and determine how well their organisation is doing. Usually, companies focus on certain business metrics in particular. While there’s nothing that makes one metric better or worse than another, the most important metrics in a business will change over time, depending on the company’s stage of development and market conditions. Among the various metrics, the book-to-bill ratio is a metric that many executives closely watch because it gives an early indication of the company’s direction – up or down. It is pretty simple math – take the bookings (orders) and divide this figure by the billings (revenue).


According to Wikipedia:

The book-to-bill ratio, also known as the BB ratio or BO/BI ratio, is the ratio of orders received to the amount billed for a specific period, usually one month or one quarter.

According to Investopedia:

The book-to-bill ratio reveals how quickly a business fulfills demand for its products. The ratio also shows the strength of a sector, such as aerospace or defense manufacturing. It may also be used when determining whether to purchase stock in a company.

In consulting

This metric is also used in the consulting industry. On their last conference call, Accenture mentioned their book-to-bill ratio here:

New bookings were $10 billion for the quarter, reflecting 19% growth in local currency over last year. Our consulting bookings were $5.9 billion, with a book-to-bill of 1.1 and represented an all-time high. Outsourcing bookings were $4 billion, with a book-to-bill of 0.9.

This means that Accenture had purchase orders for $5.93 billion of consulting work for the next quarter compared to the $5.18 of revenues in the current quarter.


This is a valuable tool for measuring the strength of the company:

  • When this ratio is expanding (greater than 1), it indicates that an organisation is healthy with a backlog with new orders.
  • Conversely, when this ratio is declining (less than 1), it is a strong indicator of impending trouble.

For example, a business that generates $1 million of new orders in a month, while billing its customers $800,000 in the same period results in a value of 1.25:

$1,000,000 ÷ $800,000 = 1.25


This metric is especially important in industries where customer demand is volatile. In this case, the management needs to understand when to start scaling back capacity to meet declining demand. Investors closely watch this figure, since a high value indicates a robust business that is attracting customers and is worthy of investment. Conversely, a declining value, especially across a number of reporting periods, is an indicator of possible bankruptcy. In some industries not all bookings result in revenues. Alternatively, this figure indirectly indicates a company’s salesforce efficiency. You want to know how much revenue a company has booked, and how much revenue it has actually billed. Nevertheless, it’s important to track of this metric.


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I am Mithun Sridharan, the Founder & Author of Think Insights and INTRVU. I am a Global Industry Advisor at Amazon Web Services, where I advise CxOs & Senior Leadership at global Fortune 100 companies on their strategic business transformation initiatives. Prior to Amazon, I served on senior managerial and leadership roles at leading Management Consulting firms, such as KPMG AG and Sapient Consulting. The insights shared in this website are from my 1st-hand experiences in advising diverse clients across the Capital Markets, Automotive and Hi-tech industries. Please feel free connect with me on LinkedIn.


The opinions and views expressed in this blog are my own and dont reflect or use Intellectual Property (IP) from my startups, other ventures, associates (both, business and personal), or clients, employers, etc.

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