7 SaaS financial metrics examples worth knowing

Subscription software earns its money slowly, month by month. A single sale tells you very little on its own. That is why SaaS financial metrics matter so much: they measure recurring income, how long customers stay, and what growth actually costs to buy.

Founders, finance leaders, and investors all watch the same short list of figures. Each one answers a plain question. Who is paying? Are they leaving? Is that growth profitable?

Below are seven metrics worth knowing, with a clear definition, the formula in plain terms, and why each belongs on your dashboard.

1. Monthly recurring revenue (MRR) and annual recurring revenue (ARR)

Monthly recurring revenue (MRR) is the predictable income from active subscriptions in a given month. Annual recurring revenue (ARR) is simply that figure multiplied by 12.

The formula is straightforward. MRR equals your number of active accounts times the average revenue per account. You should exclude one-time setup charges and professional service fees, because those do not repeat.

MRR is the heartbeat of the business. It smooths lumpy contracts into a steady number you can forecast against. Dedicated subscription analytics tools can calculate it automatically, and resources such as Klipfolio describe MRR as the revenue a business “generates from active accounts in a given month.”

2. Churn rate

Churn rate is the share of customers or revenue you lose over a period. It is the leak in the bucket.

Customer churn equals customers lost divided by customers at the start of the period. Revenue churn uses lost MRR instead, which matters more when accounts vary in size.

Small numbers compound fast. Losing 3% of customers every month means losing more than a third of your base in a year. So even modest churn can quietly cancel out hard-won new sales.

3. Customer acquisition cost (CAC)

Customer acquisition cost (CAC) is what you spend to win one new customer. It covers sales salaries, advertising, and marketing programs.

The formula divides total sales and marketing spend by the number of new customers in that period. The venture firm a16z argues CAC should be “the full cost of acquiring users, stated on a per user basis,” not a flattering blend of paid and free channels.

CAC tells you how expensive growth really is. A low number means your funnel works. A rising one is an early warning that a channel is getting crowded or less effective.

4. Customer lifetime value (LTV)

Customer lifetime value (LTV) is the total profit you expect from a customer before they leave. It pairs naturally with CAC.

A common formula takes average revenue per account, multiplies it by gross margin, then divides by the churn rate. The result estimates how much each relationship is worth over time.

The real insight comes from the ratio. Many investors look for an LTV to CAC ratio of roughly 3 to 1. If you spend more to acquire a customer than you ever earn back, the model simply does not work, no matter how fast you grow.

5. Gross margin

Gross margin is the share of revenue left after the direct cost of delivering the software. For SaaS, those costs include hosting, customer support, and third-party fees.

You calculate it as revenue minus cost of revenue, divided by revenue, shown as a percentage. Healthy software businesses usually run gross margins of 70% or higher.

Margin matters because it funds everything else. High gross margin leaves more cash for product, sales, and support. A thin margin, meanwhile, means you must grow much larger just to cover the same overhead.

6. Net revenue retention (NRR)

Net revenue retention (NRR), also called net dollar retention, measures revenue from your existing customers over time. It adds upgrades and expansion, then subtracts downgrades and churn.

The formula takes starting MRR plus expansion, minus contraction and churn, divided by that starting MRR. Above 100% means your current base grows on its own, even with zero new sales.

That threshold is a strong signal. Bessemer Venture Partners found that “only the bottom quartile of cloud companies have <100% net retention rates.” So a figure above 100% marks a genuinely sticky product that customers buy more of over time.

7. Burn rate and runway

Burn rate is how fast you spend cash. Net burn subtracts revenue from expenses, so it shows the real monthly drain on your bank balance.

Runway then follows directly. It equals cash on hand divided by monthly net burn, which gives you the number of months before the money runs out.

Together these two figures set the clock. They show how long you have to reach the next milestone or raise more capital. Many teams combine burn with the metrics above into one view, a practice known as business intelligence for finance teams, so leaders can act before cash gets tight.

Frequently asked questions

What is the difference between SaaS financial metrics and product metrics?

Financial metrics follow the money: revenue, cost, margin, and cash. Product metrics follow behavior instead, such as active users, feature adoption, and session length. The two work best side by side, because engagement usually explains why the financial numbers move.

How often should a SaaS company review these metrics?

Most teams review revenue and retention monthly. Burn rate and cash deserve a closer look, often weekly, especially while raising money. Boards typically see quarterly trends rather than daily swings, so the cadence depends on the audience.

What is the Rule of 40?

The Rule of 40 is a quick health check. It says your growth rate plus your profit margin should add up to at least 40%. It rewards companies that balance fast growth with discipline, rather than buying either one at any cost.

Can an outsourced finance team manage these metrics?

Yes. An offshore finance team can own the reconciliations, reporting, and dashboards that keep these numbers accurate. That frees in-house leaders to focus on decisions, while a managed services partner handles the monthly mechanics.