What Startup Metrics Should You Track? (And How to Automate Them)
Every investor meeting starts the same way. "Walk me through your metrics."
At that moment, you're either pulling up a live dashboard with numbers current as of yesterday, or you're opening a spreadsheet you updated last weekend and hoping the formulas still work. The difference between these two scenarios says more about your operational maturity than any pitch slide ever could.
But metrics aren't just for investor meetings. The right metrics, tracked consistently and accurately, are how you make decisions. When to hire. When to cut spending. Whether your latest feature is driving retention or just adding complexity. Whether your growth is real or just an artifact of how you're counting.
This guide covers which metrics matter at each stage of your startup, how most founders track them today, why that approach breaks down, and how to set up a system that keeps your metrics current without adding work.
Pre-Seed and Seed: The Foundation Metrics
At the earliest stage, your metrics are fundamentally about survival and momentum. You don't need a complex analytics stack. You need clarity on four things.
Burn Rate
What it is: How much cash you spend per month, net of any revenue.
Why it matters: Burn rate is the clock. Every dollar you spend brings your runway closer to zero. Knowing your burn rate precisely (not approximately, not "around $40K") lets you make informed decisions about hiring, spending, and when to start fundraising.
How to calculate: Total monthly expenses minus total monthly revenue. Simple in theory; hard in practice when expenses are scattered across multiple bank accounts, credit cards, and reimbursement requests.
What good looks like: You know your burn rate within $500 of accuracy, updated weekly or (ideally) daily.
Runway
What it is: How many months of cash you have left at your current burn rate.
Why it matters: Runway determines your timeline for everything. If you have 18 months of runway, you can afford to experiment. If you have 6 months, you need to be raising now or cutting costs.
How to calculate: Current cash balance divided by monthly burn rate.
The mistake most founders make: Calculating runway once (right after closing a round) and then not updating it for months. Runway is a moving target. If your burn increases because you hired two people, your runway just shortened and you need to know that immediately, not at the next board meeting.
Monthly Revenue
What it is: Total revenue collected in a given month.
Why it matters: Even if it's small, revenue trajectory tells a story. Going from $2,000 to $5,000 to $12,000 in three consecutive months is a strong signal. Flat or declining revenue is a signal too, just not the one you want.
Key nuance: Make sure you're measuring recognized revenue, not just cash collected. If a customer pays $12,000 annually upfront, that's $1,000/month in recognized revenue, not a $12,000 month followed by eleven $0 months.
Month-over-Month Growth Rate
What it is: The percentage change in revenue (or another key metric) from one month to the next.
Why it matters: This is the number investors care about most at the pre-seed and seed stage. Y Combinator's benchmark is 5 to 7% week-over-week growth, which translates to roughly 20 to 30% month-over-month growth. Most startups won't hit that consistently, but knowing your actual growth rate lets you set realistic expectations and spot trends.
How to calculate: (Current month revenue minus previous month revenue) divided by previous month revenue, expressed as a percentage.
Growth Stage: The SaaS Metrics That Matter
Once you've found some traction, the metrics get more specific. These are the numbers that define whether your business model is working.
MRR and ARR
Monthly Recurring Revenue (MRR): The total predictable revenue you receive every month from active subscriptions. This excludes one-time payments, setup fees, and usage-based overages (unless they're predictable).
Annual Recurring Revenue (ARR): MRR multiplied by 12. ARR is the metric VCs use to value SaaS companies. "We're at $1M ARR" is the shorthand that opens doors.
Common mistakes:
Including non-recurring revenue in MRR (one-time consulting, setup fees)
Not accounting for discounts applied to annual plans
Counting contracted revenue that hasn't started yet
Mixing gross and net figures
Getting MRR right requires clean revenue data. If your bookkeeping is messy or your revenue recognition is off, your MRR will be too. This is one of the strongest arguments for having your metrics generated directly from your accounting data rather than calculated separately.
Churn
Customer churn: The percentage of customers who cancel in a given period. If you start the month with 100 customers and 5 cancel, your monthly customer churn is 5%.
Revenue churn (gross): The percentage of MRR lost from cancellations and downgrades. This can differ significantly from customer churn if your churning customers are disproportionately high-value or low-value.
Why it matters: Churn is the silent killer of SaaS businesses. A 5% monthly churn rate means you're losing nearly half your customer base annually. Even a 2% monthly churn rate means you need to replace roughly 22% of your revenue every year just to stay flat.
What good looks like: Under 2% monthly for B2B SaaS. Under 5% monthly for B2C or SMB-focused products. If you're above these benchmarks, fixing churn should be your top priority.
CAC (Customer Acquisition Cost)
What it is: The total cost to acquire one new customer, including sales and marketing expenses.
How to calculate: Total sales and marketing spend in a period divided by the number of new customers acquired in that period.
Why it matters: CAC tells you whether your growth is efficient. Spending $5,000 to acquire a customer who pays $100/month means you need 50 months just to break even on acquisition cost alone. That math doesn't work.
The nuance: CAC should include fully-loaded costs: salaries for sales and marketing team members, ad spend, tools, content production, and event costs. Most founders undercount by only including ad spend.
LTV (Customer Lifetime Value)
What it is: The total revenue you expect to earn from a customer over the entire duration of their relationship with your company.
How to calculate (simplified): Average revenue per account per month divided by monthly churn rate. If your average customer pays $200/month and your monthly churn is 4%, LTV = $200 / 0.04 = $5,000.
Why it matters: LTV relative to CAC is the fundamental equation of SaaS economics. The rule of thumb is LTV:CAC should be 3:1 or better. If it's below that, you're spending too much to acquire customers, charging too little, or churning too fast.
Net Revenue Retention (NRR)
What it is: The percentage of revenue retained from your existing customer base over a period, including expansion (upgrades, add-ons) and contraction (downgrades, churn).
How to calculate: (Starting MRR + expansion MRR - churn MRR - contraction MRR) / Starting MRR, expressed as a percentage.
Why it matters: NRR above 100% means your existing customers are spending more over time, even without acquiring any new customers. This is the holy grail of SaaS metrics. Top-performing SaaS companies have NRR of 110 to 130%+. NRR below 100% means you're losing revenue from your existing base and need new customers just to stay flat.
How Most Founders Track Metrics Today (And Why It Breaks)
The typical approach involves some combination of three methods, all of which have significant problems.
Method 1: Spreadsheets
You export data from Stripe, your bank, and your CRM into a spreadsheet and calculate metrics manually. This works for the first few months, but it breaks in predictable ways.
Spreadsheets require manual updates. You forget for a week, and now your metrics are stale. The formulas are fragile; one change to your Stripe plan structure and your MRR calculation is wrong. There's no audit trail. And when you present these numbers to investors, you can't easily show how they were derived.
Method 2: Standalone Metrics Tools
Tools like ChartMogul and Baremetrics connect directly to Stripe and calculate SaaS metrics automatically. They're a significant improvement over spreadsheets. But they have a blind spot.
These tools only see what flows through Stripe. They don't know about your expenses, your burn rate, or your runway. They can't calculate CAC because they don't have your marketing spend data. They can't reconcile their revenue numbers against your books because they're disconnected from your accounting system. So you end up with metrics in one tool and financial statements in another, and when the numbers don't match (which happens often), it's a nightmare to figure out why.
The cost adds up too. ChartMogul starts at $99/month for growing startups. Baremetrics starts at $108/month. That's on top of whatever you're paying for bookkeeping.
Method 3: Manual Board Deck Prep
The most common approach in practice: once a month (or once a quarter), someone pulls data from multiple sources and builds the metrics slide for the board deck. This process typically takes 4 to 8 hours and results in numbers that are instantly stale the moment the deck is finished.
The deeper problem with all three methods is that your metrics and your books are disconnected. Revenue in Stripe doesn't always match revenue in your accounting system (due to fees, refunds, chargebacks, and timing differences). So which number is right? The one in your metrics tool or the one in your books?
The Case for Metrics Built Into Your Accounting
The solution to the disconnected-data problem is to generate your metrics from your accounting data. When your bookkeeping platform also calculates your MRR, ARR, churn, CAC, LTV, burn rate, and runway, several things happen:
Single source of truth. Your metrics and your financial statements are derived from the same underlying data. MRR in your metrics dashboard matches revenue on your income statement. There's no reconciliation gap.
Always current. If your books are closed daily, your metrics are current as of yesterday. No manual exports. No monthly refresh cycle. No stale board deck numbers.
Fully loaded. Because your accounting platform has your expense data, it can calculate metrics like CAC and burn rate that payment-only tools can't. You see the full picture, not just the revenue side.
No extra tools. You eliminate the $100 to $300/month you'd spend on a standalone metrics tool and the time spent maintaining the integration.
How Median's SaaS Metrics Dashboard Works
Median is the platform we recommend for startups that want metrics and accounting unified in a single system.
Here's how it works in practice:
Revenue flows in from Stripe. Median's native Stripe integration captures every transaction, subscription change, upgrade, downgrade, and cancellation. Revenue is recognized properly on an accrual basis (not just when cash hits your bank).
Expenses flow in from your bank, cards, and payroll. Mercury, Ramp, Brex, Gusto, Deel, and 10,000+ financial institutions connect natively. Transactions are categorized using AI (92 to 97% accuracy) and reviewed by a dedicated human accountant.
Books are closed daily. Every business day, your general ledger is reconciled and closed. This means the financial data underlying your metrics is current as of yesterday.Metrics are calculated automatically. From the closed books and Stripe data, Median generates:
MRR and ARR with proper handling of discounts, upgrades, downgrades, and churn
Customer and revenue churn trended over time
CAC using your actual marketing and sales expenses (because it has your full expense data)
LTV based on actual churn rates and average revenue per account
Net revenue retention showing whether your existing base is expanding or contracting
Burn rate and runway updated daily based on actual cash position and spend
The dashboard is always live. There's nothing to export, no spreadsheet to update, no monthly refresh to remember. You open Median and your metrics are there, current, accurate, and consistent with your books.
This is available on Median's Growth plan ($399/month) and Scale plan ($849/month). Given that it replaces both a standalone metrics tool ($100 to $300/month) and gives you metrics most bookkeeping services can't provide at any price, the value is significant.
Setting Up Your Metrics Stack
If you're starting from scratch, here's the practical path to getting metrics right:
Step 1: Get your books in order. Metrics are only as good as the data they're built on. If your bookkeeping is a mess, your metrics will be too. Set up properly managed accounting first.
Step 2: Connect your revenue source. Make sure your accounting platform has a clean, native integration with your payment processor (usually Stripe). Avoid CSV imports or Zapier workarounds; they introduce lag and errors.
Step 3: Choose unified or standalone metrics. If your accounting platform offers built-in metrics (like Median does), use them. Single source of truth, no extra cost, no extra maintenance. If your platform doesn't offer metrics, add a standalone tool like ChartMogul and accept that you'll need to reconcile differences.
Step 4: Set your cadence. Review your metrics weekly with your co-founder or leadership team. Monthly with your board. The weekly review catches trends early; the monthly review provides context.
Step 5: Define your benchmarks. Know what good looks like for your stage and business model. For a seed-stage SaaS company, reasonable benchmarks include MRR growth of 10 to 20% month-over-month, churn under 3% monthly, and LTV:CAC above 3:1. Adjust based on your specific market and model.
Frequently Asked Questions
What metrics should I track before I have revenue?
Burn rate, runway, and whatever engagement or usage metrics are relevant to your product (active users, signups, retention by cohort). Revenue metrics don't apply yet, but financial metrics still do.
How often should I update my metrics?
With a platform like Median that generates metrics from daily-close books, they're always current. If you're using spreadsheets or standalone tools, update at least weekly. Monthly is too infrequent for an early-stage startup where conditions change fast.
Do investors really care about metrics?
Yes. Sophisticated investors will ask about MRR, churn, CAC, and LTV at the seed stage. By Series A, these are table stakes. Showing up with clean, current metrics from a live dashboard (rather than a static slide) signals operational maturity.
What if my metrics look bad?
Show them anyway. Investors respect founders who have a clear understanding of their numbers, even when the numbers aren't great yet. What kills credibility is not knowing your numbers, presenting inconsistent data, or clearly guessing.
Can I just use Stripe's built-in analytics?
Stripe's dashboard shows revenue and basic subscription data, but it can't calculate CAC (no expense data), doesn't reconcile against your books, and doesn't provide burn rate or runway. It's a starting point, not a solution.
This post is part of our Startup Finance Stack series. To understand the full cost picture of different accounting approaches, read The Real Cost of Startup Accounting. For a comparison of the platforms that offer integrated metrics, see our Startup Bookkeeping Showdown.