Revenue Run Rate
Revenue run rate annualizes your current period revenue to project what you would earn in a full year at the current pace. Monthly run rate: multiply one month's revenue by 12. Quarterly run rate: multiply by 4. It is a forward-looking projection, not a measure of actual earned revenue.
Why Revenue Run Rate Matters for SaaS Companies
Run rate is useful for quick planning — estimating headcount capacity, budgeting, and setting targets. But it is frequently misused to inflate growth narratives. For Seed to Series B companies, the gap between run rate and actual ARR can be significant, especially if recent months included one-time revenue spikes.
An Operator's Take
Run rate is the metric founders use when they want to tell the best version of their growth story. Had a great month? Multiply by 12 and call it your run rate. I am not cynical about it — run rate has legitimate planning uses. But I have seen founders raise capital based on run rate projections from their single best month. Three months later, revenue reverts to mean and they are stuck with dilution based on numbers that never repeated. Use run rate for internal planning. Use ARR for external conversations.
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Common Mistakes
What I see go wrong most often in the field.
Using your single best month as the basis for run rate. Use trailing 3-month average for a realistic projection.
Including one-time revenue in run rate calculations. Run rate should only project recurring revenue.
Confusing run rate with ARR. ARR is based on active contracted subscriptions. Run rate is a projection that assumes current pace continues.
What to Do This Week
Concrete steps you can take right now.
Calculate your run rate two ways: using last month's MRR x 12, and using trailing 3-month average MRR x 12. If they differ significantly, recent months had unusual activity.
Ensure your run rate projection excludes one-time revenue.
Use ARR (not run rate) in fundraising conversations. Sophisticated investors know the difference.
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Frequently Asked Questions
What is the difference between run rate and ARR?
ARR is based on currently active subscription contracts, annualized. Run rate is a projection based on recent revenue, annualized. ARR is more conservative and accurate because it reflects contracted revenue. Run rate can be inflated by one-time spikes, seasonal effects, or non-recurring revenue.
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