What Is MRR Growth Rate? How to Measure and Sustain SaaS Growth

MRR Growth Rate is the month-over-month percentage change in your Monthly Recurring Revenue. It's the clearest single measure of business momentum - showing whether you're accelerating, holding steady, or decelerating, and at what pace.

A business that consistently grows MRR at even a modest rate will compound into something significant over time. A business with flat or declining MRR growth rate is running out of momentum, regardless of how impressive its current MRR number looks.

🧒 Explained simply Last month your lemonade stand made $100. This month it made $110. You grew by 10%! MRR Growth Rate is just asking "how much faster is my stand getting?" every single month. The exciting thing about growth rate is that it compounds - 10% a month sounds small, but it means your stand more than doubles in a year without you doing anything dramatically different.

What Is MRR Growth Rate?

MRR Growth Rate measures the rate at which your recurring revenue is increasing from one month to the next. It's a velocity metric - not a size metric. Two businesses at the same MRR level can have very different growth rates, and the one growing faster will be dramatically larger within 12–18 months.

At 10% monthly MRR growth, a business doubles roughly every 7 months. At 5%, it takes about 14 months. The compounding math is why growth rate matters as much as the absolute MRR figure.

How to Calculate MRR Growth Rate

MRR Growth Rate = (MRR This Month − MRR Last Month) ÷ MRR Last Month × 100

Example: MRR was $40,000 last month and is $44,000 this month.

MRR Growth Rate = ($44,000 − $40,000) ÷ $40,000 × 100 = 10%

Year-Over-Year MRR Growth Rate

For a less noisy signal - especially useful as you scale - track year-over-year growth:

YoY MRR Growth Rate = (MRR This Month − MRR Same Month Last Year) ÷ MRR Same Month Last Year × 100

YoY comparison removes seasonality and smooths out the month-to-month variance that can make MoM growth misleading.

What Drives MRR Growth Rate?

MRR growth rate is determined by the balance between MRR inflows and outflows:

Inflows:

New MRR - revenue from newly acquired customers
Expansion MRR - revenue from existing customers upgrading or adding seats
Reactivation MRR - revenue from previously churned customers returning

Outflows:

Churned MRR - revenue lost to cancellations
Contraction MRR - revenue lost to downgrades

Net New MRR = New MRR + Expansion MRR + Reactivation MRR − Churned MRR − Contraction MRR

MRR Growth Rate = Net New MRR ÷ MRR at Start of Month × 100

A business with strong MRR growth rate can achieve it in very different ways - high acquisition with moderate churn, or moderate acquisition with strong expansion and low churn. The composition matters because it determines how sustainable the growth rate is.

MRR Growth Rate Benchmarks

What constitutes a healthy MRR growth rate depends heavily on company stage:

Stage	Monthly MRR	Target MoM Growth Rate
Pre-product-market fit	Under $10K	20–50%
Early growth	$10K–$100K	10–20%
Scaling	$100K–$500K	5–10%
Growth stage	$500K+	3–7%

These are rough benchmarks. The rule of thumb often cited is "Triple, triple, double, double, double" - a growth trajectory used by investors to describe strong SaaS growth from $1M ARR to $100M ARR over roughly 5 years.

At early stages, MoM growth rates that look small in percentage terms compound dramatically. 7% monthly growth is roughly 125% annual growth. 10% monthly is roughly 214% annual.

Why MRR Growth Rate Matters

It predicts where you'll be in 12 months. MRR growth rate is the most reliable forward-looking signal available. A consistent 8% monthly growth rate tells you your MRR will roughly 2.5x in the next 12 months. Flat growth rate means flat MRR.

It reveals whether your business model is working. Sustained MRR growth requires that acquisition is efficient, churn is under control, and expansion is contributing. When growth rate decelerates, it almost always traces back to one of these three areas - and identifying which one tells you where to focus.

It determines company valuation. SaaS companies are valued on a combination of current ARR and growth rate. High growth rate commands a premium multiple. Decelerating growth rate compresses multiples significantly, even at the same absolute revenue level.

It exposes the efficiency of your growth. Fast MRR growth that relies entirely on heavy acquisition spend is very different from fast growth that's partly self-funded by expansion MRR and low churn. Tracking the components of growth rate reveals whether you're building a durable business or a growth-dependent one.

How to Sustain MRR Growth Rate

As MRR grows, maintaining the same growth rate requires generating more absolute new MRR each month. A business at $10K MRR needs $1,000 in net new MRR to grow 10%. At $500K MRR, the same 10% requires $50,000 in net new MRR. This is why growth rates naturally decelerate as businesses scale - and why building diversified growth levers matters.

Keep churn low. Churn directly reduces net new MRR. A high churn rate forces acquisition to do double duty - replacing lost revenue before generating growth. Keeping monthly churn below 2% dramatically improves the efficiency of every acquisition dollar.

Build expansion as a growth channel. Expansion MRR can contribute meaningfully to growth rate without any new customer acquisition. A 3% monthly expansion rate on a $500K MRR base generates $15,000 in net new MRR before a single new customer is added.

Diversify acquisition channels. Businesses that rely on a single acquisition channel are exposed to pricing changes, algorithm shifts, and market saturation. Multiple channels - content, paid, referral, partnerships - provide resilience and sustain growth rate through channel-specific headwinds.

Improve conversion rates. If your trial-to-paid conversion rate is 15% and you improve it to 20%, you grow MRR from the same traffic without increasing spend. Conversion improvements have a direct and immediate impact on New MRR and therefore growth rate.

How to Track MRR Growth Rate

Chartsy calculates MRR growth rate month-over-month and year-over-year from your Stripe or Paddle data, and shows you the breakdown of what's driving it. You can ask:

"What is my MRR growth rate for the last 12 months?"
"Show me New MRR vs Churned MRR trend"
"What percentage of my MRR growth came from expansion this quarter?"
"At my current growth rate, what will my MRR be in 6 months?"

Connect Stripe and track your MRR growth rate →

Frequently Asked Questions About MRR Growth Rate

What is a good MRR growth rate for SaaS? It depends heavily on stage. Early-stage SaaS under $10K MRR should target 20–50% monthly growth. From $10K–$100K MRR, 10–20% is strong. At $100K–$500K MRR, 5–10% monthly is healthy. In practice, any consistent compounding growth rate is valuable - 7% monthly compounds to roughly 125% annual growth.

How do you calculate month-over-month MRR growth? Subtract last month's MRR from this month's MRR, divide by last month's MRR, and multiply by 100. Example: MRR was $30,000 last month and is $33,000 this month. Growth rate = ($33,000 − $30,000) ÷ $30,000 × 100 = 10%.

What causes MRR growth rate to slow down? Decelerating MRR growth almost always traces to one of three causes: rising churn eating into net new MRR, an acquisition channel maturing or becoming more expensive, or the product hitting a ceiling in its addressable market. Identifying which lever is responsible - by tracking new MRR, expansion MRR, and churned MRR separately - tells you where to focus.

What is the Rule of 40 in SaaS? The Rule of 40 states that a healthy SaaS company's revenue growth rate plus profit margin should equal at least 40%. For example, a company growing at 30% annually with 10% profit margin scores 40. It's used at scale to balance growth and profitability - a company can trade margin for growth or vice versa, as long as the combined score stays above 40.

How do I increase my MRR growth rate? The three highest-leverage levers are: reducing monthly churn (every percentage point of churn reduction directly increases net new MRR), building expansion revenue from existing customers (adds to the numerator without additional acquisition spend), and improving trial-to-paid conversion (more paying customers from the same marketing investment). In practice, addressing churn first unlocks the most compounding value.