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Calculating the recurring revenue is one of the integral parts of starting and growing a SaaS business. It can be challenging sometimes to tell the difference between all the different numbers, especially when they rapidly change.
Moreover, it is important to understand the intricacies of MRR and ARR to know how to use them properly. Both of those metrics are incredibly insightful for business owners and potential investors. In this guide, we’ll cover all the nuances of recurring revenue calculation practices and their purposes. So – let’s dive in!
MRR and ARR Fundamentals
Let’s start with abbreviations.
MRR stands for Monthly Recurring Revenue. In the case of SaaS, it is an income you’ll receive based on subscriptions per month. It is a predictable and often easy-to-grasp metric. However, it is essential to remember that it does not include:
- One-time payments
- Fees for setting up a system
- Any other type of inconsistent income
To calculate MRR, simply take the number of active subscribers for a specific month and multiply it by the monthly rate. So, if you have 100 subscribers with $20 monthly payment contracts, your MRR would be $2,000.
It is also essential to know that MRR can change in real time. For example, any upgrade or downgrade will change the final estimation. The number of active subscribers can also go up or down at any point. No matter what industry you are in, some churn can happen. MRR is all about what is going on at this particular moment.
What is ARR, then? It is an Annual Recurring Revenue. To calculate it, one would multiply MRR by 12 months of the year. So, if your MRR is $2,000, the ARR will be $24,000.
At first glance, all of that seems as simple as getting writing help online with your assignments. A student can just use a free paragraph rewriter and get instant help with any type of subject. However, when it comes to recurring revenue interpretations, it is all a bit more intricate.
How These Metrics Are Used
Both of these numbers give essential insights into the business and how it’s doing. MRR provides a realistic presentation of the current state. It shows how the company is doing this month. It is mainly used for understanding the newest developments or changes after new features, plans, or programs are introduced.
ARR is not a real glance – it is a projection for the future. It gives a forecast of how things might go this year. It cannot be a reality check, as the numbers can change every day. Some subscribers will become inactive, or there might be an influx of new users you cannot foresee immediately.
Also, there might be changes in plans, contracts, rates, etc.
At the same time, one needs to understand that recurring revenue does not cover all of the revenue. It is one of the perspectives on how a company is doing. There could be other ones, too, for instance:
- RR – income based on contracts (subscription)
- Revenue – the total income of a company (RR plus one-time payments)
- Bookings – all subscriptions and their benefit, even if the customer hasn’t paid yet
- Billings cover the income you are going to get based on invoices to customers
Recurring revenue focuses exclusively on the predictable finances the business will get this month and, potentially, this year. Any inconsistent funds or one-time payments are not part of this metric.

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How to Interpret MRR
Investors are usually interested in ARR as they want to see the bigger picture and expected growth. MRR is much more relevant for founders and business owners as it offers the most appropriate current information.
However, ARR is a forecast based on MRR, so it would not be possible to deeply grasp the essence of one without knowing the other.
What is MRR used for? Mostly, it is a reality check to get the picture of current affairs. A founder can compare it to the previous months and see specific dynamics. The number of subscribers can grow or decrease.
It is particularly important to pay attention to it after any significant changes in the services, like new features, sales, upgrades, or new marketing strategies. Based on the dynamics, you can see how a specific policy, feature, or alteration affects the number of active users. The rest is simple – upscale on what works and avoid things that make subscribers churn.
How to Understand ARR
ARR is the metric that founders show investors most often. It is a projection, yet it gives a broader glance at what the company can expect to reach in a year. If we compare MRR to getting an aerial view of the street, then ARR would be a view of the whole city.
However, it is crucial to keep in mind that prediction is never a guarantee. The numbers can change because no business remains incredibly steady for a year. There will be times when you get more new customers than at other times. Or the market can rapidly change.
Yet, ARR has its purposes, namely:
- Showing the scale to investors to attract more capital
- Predicting a company’s growth in the long run is helpful for planning upgrades, hiring, or upscaling
- Planning how much to charge for annual plans or what discounts you can give
- Understanding how your business is doing compared to competitors in the same field
ARR is much more predictable with annual subscriptions. If you only bill month by month, the difference between the MRR and ARR can be more significant.
Summing Up
Overall, MRR presents the “immediately,” and ARR shows the potential “future.” Both of the metrics are important to track and calculate regularly.
MRR gives businesses insight into current affairs. It shows the dynamics in subscriptions when compared to previous months. It is about the recurring revenue the SaaS company will get this month. At the same time, this estimation is changing in real life. But it allows founders to be more precise with their planning and adjusting strategies. Just like WritePaper helps students track their progress and deadlines efficiently, MRR helps companies keep a clear view of their financial trajectory.
ARR is MRR multiplied by 12 months. It is a projection of how the company will do in a year based on its current state. This is the metric potential investors are interested in. It shows them the predicted growth and scale. At the same time, it is beneficial for founders, too. Based on this forecast, you can be more strategic about hiring or payment rates.
FAQ
1. How do you calculate ARR correctly?
Although there are plenty of tools out there, the formula is the same. ARR is MRR multiplied by 12 months. So, first, you need to calculate the monthly recurring revenue and then multiply it by 12. That would be the ARR.
2. How are MRR and ARR different?
The first one is the monthly recurring revenue – the number of active subscribers multiplied by the subscription rate. The second one is the annual recurring revenue – MRR x 12 months.
This is the difference from a mathematical standpoint. However, they also differ in meaning. MRR is a real number as of today. ARR is a prediction based on the previous number. The prediction is never set in stone or guaranteed. It can change pretty quickly.
3. Why do investors prefer to see ARR?
Investors usually want to see a bigger picture – what a company can achieve in a year. It is easier to evaluate the potential growth and revenue with ARR. That’s why they prefer this metric. MRR is too narrow in its focus for an investor.
4. What is more critical for SaaS founders – MRR or ARR?
They are both equally important because they serve different purposes. The monthly number presents the current picture in real-time. It is essential to keep a hand on the pulse of the company.
The annual number is a forecast of what could happen in a year if everything goes as it does immediately. It allows us to adjust strategies, plan recruitment, or open new branches.
Also, it might be a sign that there should be some significant changes in services, policies, customer relations, or any other part of the business.