Investor MRR Calculator

The Investor MRR Calculator summarizes monthly recurring revenue for an investor review. It reports current MRR, annualized run-rate revenue, month-over-month growth, and net new MRR from the prior month. These outputs help separate recurring subscription momentum from one-time revenue.

The calculator is useful for SaaS fundraising updates, board materials, and quick trend checks. It assumes the entered MRR follows a consistent definition across periods and excludes non-recurring implementation or services revenue. Annualized run rate is current MRR multiplied by twelve; it is not a forecast and does not account for seasonality, future churn, expansion, or pricing changes.

Inputs

USD/month
USD/month
Result
Current monthly recurring revenue
Annualized run rate
Month-over-month growth
Net new MRR

1. Enter current MRR
Use recurring revenue active at the end of the current month.

2. Enter previous MRR
Use the same definition and currency for the prior month.

3. Review net new MRR
This is the absolute monthly change.

4. Check growth rate
The percentage change scales the movement relative to the prior month.

5. Use ARR carefully
The annualized figure is a run rate, not a booked-revenue forecast.

MRR growth rate = (Current MRR − Previous MRR) ÷ Previous MRR × 100; Annualized run rate = Current MRR × 12

Where:

  • Current MRR = recurring monthly revenue at the current measurement date
  • Previous MRR = comparable recurring monthly revenue one month earlier

Assumptions: MRR definitions, currency, and cutoff timing are consistent. Non-recurring revenue is excluded.

What the result means

Current monthly recurring revenue.

Use the result as a planning estimate based on the assumptions above.

Given: A SaaS company reports $145,000 current MRR and $132,000 in the prior month.

Calculation: Net new MRR: $145,000 − $132,000 = $13,000. Growth: $13,000 ÷ $132,000 × 100 = 9.8485%. Annualized run rate: $145,000 × 12 = $1,740,000.

Result: Current MRR is $145,000, with 9.85% monthly growth and a $1.74 million annualized run rate.

What revenue should be excluded from MRR?

Exclude one-time setup, hardware, consulting, and other non-recurring charges unless your reporting policy explicitly treats them as recurring.

What happens when previous MRR is zero?

A conventional percentage growth rate is undefined. This calculator displays 100% when current MRR is positive as a simple startup-period indicator.

Is annualized MRR the same as forecast ARR?

No. Multiplying current MRR by twelve is a run-rate snapshot and does not model future customer behavior.

Should usage-based revenue be included?

Include only the recurring or reliably normalized portion under your chosen MRR policy.

Why do investors look at net new MRR?

It shows the absolute recurring-revenue change and complements the percentage growth rate.