spreadsheetsWe recently realized that we have been miscalculating our true monthly and annual recurring revenue. I wanted to write up some of the details around this and also apologize for accidentally misleading as a result of getting it wrong. With our commitment to transparency (and the fact we’re rare in sharing our revenue numbers at all) I felt it’s even more important to share our error.

We’ve always reported “Annual revenue run rate” and “Revenue” for the month in our investor updates. The way we’ve measured “Revenue” has been to take the total revenue we generated in the month, and use that. For “Annual revenue run rate,” we simply multiplied monthly revenue by 12. Our revenue includes people who pay us on a monthly basis and also those who pay for the whole year in advance. This is where the miscalculation lies. As a recurring revenue (SaaS) business, we can’t guarantee we will get the same number of people paying for annual subscriptions month after month, and we are counting revenue that is in the future. The correct way is to ‘amortize’ and divide those annual payments by 12. In this way, we’re only counting the next 12 months of actual recurring revenue we have already acquired.

The total revenue we’ve used so far is still useful in terms of cash-flow, however it’s not the right method and gives a wrong number for people who might compare or look at how Buffer is doing. We like to measure cash-flow because it can be higher than Monthly Recurring Revenue (MRR), and we are hiring and making other spending decisions based on our cash-flow at times, not necessarily based on MRR.

So from now on, we plan to share both of these numbers. We’ll share our previous number as “Bookings revenue” and share “MRR” as well.

We’ve been lucky enough to have conversations with Hiten Shah, Jason Lemkin, and Eric Ries recently and managed to get confirmation from all of them that MRR is the correct measurement for us to use.

We’re excited to move to measuring MRR, since it’s a very powerful and helpful number for us to use and try to move each month.

I thought it might be interesting to share some numbers and comparisons about our MRR vs Bookings revenue:


MRR growth has been steady and strong. Bookings revenue growth is a little more erratic:


It’s rather fascinating to overlay these two measures of revenue, and see the pattern over time:


Overall, our bookings revenue was consistently 20 to 30 percent higher than MRR. In the recent months, we adjusted to annual pricing being the default for new customers (with the option to go for monthly payments instead) and so the percent difference has risen. In addition, our bookings revenue includes refunds and failed payments, and for our MRR number we’ve taken those out, so it drops further.


I want to say sorry once again for everyone in the community we might have misled with this mistake. We’re very grateful that so many of you follow along and join in the discussion around how we build Buffer.

Let me know if you have any thoughts or questions about this, I’d love to hear from you!

Image credit: romanlily via Compfight

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Written by Joel Gascoigne

Joel is the founder and CEO at Buffer. He is focused on the lean startup approach, user happiness, transparency & company culture. Say hi to him anytime @joelgascoigne.

  • Ignacio García del Valle

    Thank you for sharing this explanation. It is great to have access to such a discussion about how to measure growth/health for startups

  • Mike Coutts (@couttsdotcom)

    Joel, slightly off topic but have there been trends to how long your month to month subscribers are staying? Thanks for sharing.

  • Adam Birnbaum

    Joel – first off wanted to let you know that this is my first post to any blog… and I felt compelled to post because I really appreciate the transparency you are offering via Buffer’s blog as a learning tool for other entrepreneurs. Next, regarding your post, if you are still having questions about MRR you should check out the SaaS excel dashboard put together by Christoph Janz at Point Nine – it offers a really clear conceptual example of how to calculate MRR when you have monthly tiers / annual tiers and users upgrading / downgrading between months. You can download it in his blog post: http://christophjanz.blogspot.de/2013/12/a-kpi-dashboard-for-early-stage-saas.html

  • http://www.convinceandconvert.com/ jaybaer

    Great job. Joel you should publish a little Excel chart or Google doc that makes this amortization calculation for people who want to roll their own.

  • ariesh

    Joel, as somebody that is close to “SaaS King”: Jason Lemkin, I’ll be little rough and say: you should know better. multiply monthly revenue by 12, is just not ARR (as you have annual payment in that monthly revenue). BUT, Buffer is not the usual SaaS business, so you probably adjust. It takes courage to share and admit the mistake, so you get two points for that :)

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