As a modern finance leader, you know how important it is to measure your company's financial performance so that you can improve your financial position and better forecast future cash flows.

What is a billing cohort?

In essence, a billing cohort tracks groups of invoices that were issued in the same month.

The fundamental idea behind billing cohort analysis is to compare different billing cohorts with one another: for example, you may want to compare the percentage of invoices issued in May 2019 that were paid in under 30 days to those that were issued in September 2019 and that were paid within the same amount of time.

If you've been improving your collection efficiency, then the percentage of invoices paid in 30 days that were issued in September should be higher than those that were issued in May.

The best way to visualize this data is by using a 2 by 2 matrix:

A 2 by 2 matrix showing invoices issued in a given month and when they were paid as cohorts.

Here, each row represents a different month of billing (a cohort), and each column represents the cumulative percentage of invoices that were paid within a certain time period. So here, for example, we can see that in December, we issued $31k in invoices and 89% of those were paid within 60 days of issuance.

Of course, you should adjust time buckets based on your business and your payment terms.

How to read a billing cohort?

There are two ways to read a billing cohort:

  • Left-to-right: this tells you how quickly the invoices in a given month were paid. The numbers are cumulative so they'll always increase, but they should get to 100% quickly. In fact, in an ideal world, the 30-day day bucket should be at 100%.
  • Bottom-to-top: this allows you to understand how the speed at which you get paid evolves over time. For example, in the example above, in August, 88% of invoices were paid within 30 days, and in March of the following year, 70% of invoices were paid within the same amount of time. This means that you're becoming less efficient at collections and that it's probably time to make some process changes.



What is the exact calculation methodology?

  • Sales/Invoiced amounts: We sum the total amount of all the invoices billed during the corresponding months (based on the issue date)
  • We exclude any draft invoices that you may have
  • Written off invoices remain part of the Sales and are accounted as loss so they are displayed in the cohorts
  • Collected percent: We divide the Sales by the value of Payments + Credit Notes received corresponding to these invoices
  • Unpaid: we subtract what has been paid (payments + credit notes) from the Sales.

NB. Multiple currencies are converted to the organisation’s base currency

Do you have other questions?

Did this answer your question?