Customer Retention

Net dollar retention - a SaaS metric juggernaut

By
Joel Passen
March 15, 2021
5 min read

The SaaS industry is still roaring towards ubiquity. Blissfully’s 2020 SaaS Trend Report notes that overall spend per organization on SaaS-based products is up 50%. However, the report also notes that this is down from previous years, and the growth rate seems to be slowing. This gradual slide has the industry turning its attention to optimizing for customer retention and leveraging existing customers for substantive growth.

Anymore, churn is just SaaS slang. Churn as a metric is confusing and ambiguous. There are too many ways to calculate customer and revenue churn. Analysts and investors have been increasingly skeptical of churn rate calculations for years. Anymore they just want a raw data dump from companies so they can run their own math.   

“There are too many darn ways to calculate churn. That makes it ambiguous.” - Dave Kellogg

The focus is on net dollar retention (NDR)? 

NDR has emerged as one of the top SaaS metrics that matter. NDR takes into account upgrades, downgrades, and churn to quantify how much recurring revenue from current customers you retained across a defined period of time. There are two hugely important questions that NDR can answer.

  1. Is your product delivering the value promised during the sale? 
  2. Are your customers growing with you or without you? 

What makes net retention so powerful is that for most companies, it’s cheaper to sell to existing customers than to sell to new logos. This makes net retention the most cost efficient way to accelerate revenue growth.

Calculating net dollar retention.

If your NDR is over 100%, this means that an increase in revenue is attributable to your existing customers. Here’s how to calculate NDR. 

(Starting MRR + expansion — downgrades — churn) / Starting MRR  = NDR

Let’s say you start the month at $100,000 in recurring revenue (MRR). Over the month it added $25,000 in expansion revenue, has $10,000 in downgrades and another $5000 in churn. ($100,000 + $25,000 — $10,000 — $5000)/$100,000 = 110% NDR. Your MRR is $110,000 with an NDR of 110% This is good. Essentially, your upgrades / upsells lifted your revenue despite losses. 

What good looks like.

At least 100% is considered a good NDR rate for SaaS businesses selling to the SMB market. Selling to smaller accounts naturally yields a lower NDR. SMB clients are less financially stable, ripe for acquisition, and have smaller budgets.  A good enterprise NDR is 130%. As with many SaaS metrics there are other things to consider. For example, Workday’s NDR is 100% but gross retention is 95%. Either Workday is very good at selling the “whole” deal or their product footprint presents limitations. 

Here are some examples of net dollar retention rates for some interesting SaaS and SaaS-enabled companies.  


Caring about net dollar retention.

NDR provides a revenue-based view of customer retention. NDR is increasingly important as you scale from a small to medium-size business and beyond. For example, a $5m business that churns 20% can replace that $1m with net new business when it’s growing +50% a year. But when a $30m business needs to replace $6m this becomes insurmountable especially if the growth rate is slowing.

The effects of NDR compound with time. It’s either additive or punitive with every customer that you acquire. This means that small upticks in NDR can add up to very large differences in total revenue over multiple years. For example, assume a business had $10 in revenue last year and consistently generates 20% of revenue from new customers. Improving the NDR from 95% to 105% may sound meager, but over five years the business will gain another $5m in revenue. 

Lifting NDR and a plug for Sturdy as a solution to help.

How can you start identifying more opportunities to grow and deliver value? Here are two ideas that sound great in articles and when delivered by panelists at conferences. First, hire a great team of CSMs who are well enabled and know your customers intimately. Second, develop more premium services to sell your customer base. Frankly, these are right answers but they take a lot of time, resources and change management to create an enduring impact. 

Now consider this. What if you had a “tool” that could analyze customer emails, tickets and conversations for important signals that are typically related to predicting churn? Maybe something that can listen for suggestions about features and products that might accelerate value capture and lift revenue? What if you could get started with such initiatives without major upfront investments in data infrastructure or change the way your teams work? We might know of such a tool. Hit us up. We’d be just as happy to talk about NDR and our experiences over the years tracking this SaaS metric juggernaut.

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The Most Dangerous Threat to CROs

Joel Passen
July 1, 2025
5 min read

The most dangerous threat to CROs doesn’t live in the opportunity pipeline.

It's churn.

  • It doesn’t scream like a missed quarterly pipeline goal.
  • It doesn’t show up in dashboards until it’s too late.
  • It's rarely caught by a generic 'health score'.
  • It's the board meeting killer.

Retaining and growing our customers is the only repeatable, compounding, capital-efficient growth lever left in B2B businesses.

📉 CAC is way up.

📉 Channels are saturated.

📉 Talent is expensive.

📉 Competition is fierce.

📉 Switching costs are low.

The path to $100M used to be “sell, sell, sell.”

Today? It’s “land, retain, expand.”

No matter how strong your sales motions are or how slick your product or service looks during the sales process, if your customers are churning, you’re stuck in a leaky bucket loop of doom.

Every net-new dollar you win is offset by dollars you lose. It's just math.

Yet most GTM orgs still operate like retention is someone else’s problem. "That's a CS thing."

  • The CS team might “own” the customer post-sale.
  • Account Management may own the renewal and growth number.
  • Support is in the foxhole on the front line.
  • RevOps might model churn with last quarter’s data.
  • Marketing might send an occasional newsletter via email.
  • Finance may be leaning in on the forecasting.
  • Product is building things that supposedly the customers want.

But in reality, churn is the CRO's problem. We wear it - or should.

If your go-to-market motion isn’t designed to protect and grow customers from Day 1, you’re not just leaving money on the table — you’re setting fire to it.

Retention and expansion aren’t back-end functions. They’re front-and-center revenue motions.

The most valuable work these days starts after the contract is signed — not before.

We need to stop treating post-live as a department and start treating it as the engine of durable growth.

Software

Have you heard this from your CEO?

Joel Passen
April 29, 2025
5 min read

"How are we using AI internally?"

The drumbeat is real. Boards are leaning in. Investors are leaning in. Yet, too many leaders hardly use it. Most CS teams? Still making excuses.

🤦🏼 "We’re not ready."Translation: We don't know where to start, so I'm waiting to run into someone who has done something with it.

🤦🏼 "We need cleaner data."Translation: We’re still hoping bad inputs from fractured processes will magically produce good outputs. Everyone's data is a sh*tshow. Trust me. 🤹🏼♂️ "We're playing with it."Translation: We have that one person messing with ChatGPT - experimenting.

😕 "Just don't have the resources right now."Translation: We're too overwhelmed manually building reports, wrangling renewals, and answering tickets forwarded by the support teams.

🫃🏼 "We've got too many tools."Translation: We’re overwhelmed by the tools we bought that created a bunch of silos and forced us into constant app-switching.

🤓 "Our IT team won't let us use AI."Translation: We’ve outsourced innovation to a risk-averse inbox.

It's time to put some cowboy under that hat 🤠 . No one’s asking you to rebuild the data warehouse or perform some sacred data ritual. You don’t need a PhD in AI.

You can start small.

Nearly every AI vendor has a way for you to try their wares without hiring a team of talking heads to perform unworldly 🧙🏼 acts of digital transformation.

Where to start.

✔️ Pick a use case that will give you a revenue boost or reveal something you didn't know about your customers.

✔️ Choose something that directs valuable work to the valuable people you've hired.

✔️ Pick something with outcomes that other teams can use.

Pro Tip: Your CEO doesn't care about chatbots, knowledgebase articles, or things that write emails to customers.

What do you have to lose? More customers? Your seat at the table?

CX Strategy

Talent gets you started. Infrastructure gets you scale.

Joel Passen
April 29, 2025
5 min read

We obsess over hiring A-players. But even the best GTM talent will flounder if the foundation isn’t there.

I’ve seen companies overpay for “rockstars” who quit in 6 months—not because they weren’t capable, but because they were dropped into chaos. No ICP. Bad data. No process. No enablement. No system to measure or coach.

Great GTM teams aren’t built on purple squirrels. They’re built on a strong foundation.

That foundation looks like this:

✅ A crisp, written ICP and buyer persona (not just tribal knowledge)

✅ Accurate prospect data to target the right ICP

✅ A playbook that outlines how you win—and how you lose

✅ A clear point-of-view that your team can rally around in every email, call, and deck

✅ Defined stages, handoffs, and accountability across marketing, sales, CS

✅ A baseline reporting system to see what’s working—and what’s not

When this exists, you can onboard faster, coach better, and scale smarter. It's not easy, and it’s not sexy, but it works.

Want to cut CAC and increase ramp speed? Start with your infrastructure. Hire into a structure.

How many customers will you have to lose before you try Sturdy?

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