How do I calculate MRR from annual invoices?

Divide the annual invoice amount by 12 to get the monthly equivalent. A $6,000/year client contributes $500/month to your MRR.

What is a healthy MRR growth rate?

For small businesses, 5-10% month-over-month MRR growth is strong. For startups, 15-20% is good. Anything above 20% is exceptional. Consistency matters more than peaks.

How does churn affect my ARR?

A 5% monthly churn rate means you lose about 46% of clients annually. Even 2% monthly churn results in ~22% annual loss. Reducing churn has a compounding positive effect on ARR.

What metrics should I track besides MRR?

Track net revenue retention (NRR), customer churn rate, ARPA (average revenue per account), and LTV:CAC ratio. Together, these paint a complete picture of your recurring revenue health.

Can InvoiceBlitz track these metrics automatically?

Yes. When you manage recurring invoices through InvoiceBlitz, the dashboard shows your billing metrics including outstanding amounts, payment rates, and client billing history.

Recurring Revenue Calculator

Calculate your MRR, ARR, and growth projections. Understand your recurring revenue health and forecast where your business is heading.

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No credit card required. Free plan includes 5 invoices/month.

What This Tool Does

The Recurring Revenue Calculator helps you track and project the key metrics of your recurring billing business. Enter your current clients and billing amounts to calculate MRR (Monthly Recurring Revenue), ARR (Annual Recurring Revenue), growth rate, and revenue projections.

Key Features

MRR Calculation

Calculate your Monthly Recurring Revenue from all active recurring invoices. Includes new MRR, expansion MRR, and churned MRR.

ARR Projection

Annual Recurring Revenue based on your current MRR. See your annualized revenue trajectory at a glance.

Growth Rate Tracking

Month-over-month growth rate based on MRR changes. Track acceleration or deceleration in your recurring revenue.

Revenue Forecasting

Project future revenue based on current growth rate, churn rate, and expected new client additions.

Churn Impact Modeling

See how different churn rates affect your revenue over 12 months. Understand the compounding impact of reducing churn.

Client Segmentation

Break down MRR by client size, plan tier, or billing frequency to identify your highest-value segments.

How It Works

Enter Your Billing Data

Add your recurring clients with their billing amounts and frequencies. Convert everything to monthly equivalents.

Review Your Metrics

See your calculated MRR, ARR, ARPA (Average Revenue Per Account), and growth rate.

Model Scenarios

Adjust churn rate, new client additions, and pricing to see how changes affect future revenue.

Track Over Time

Create a free InvoiceBlitz account to track these metrics automatically from your actual recurring invoices.

Who Uses This Tool

Calculating current MRR and ARR from existing recurring invoices

Forecasting revenue growth for business planning and budgeting

Modeling the revenue impact of reducing churn by specific percentages

Preparing recurring revenue metrics for investor or stakeholder reporting

Comparing revenue impact of different pricing strategies

Understanding the lifetime value of different client segments

Free to Start, Affordable to Grow

Start with our free plan — 5 invoices per month, 3 clients, PDF downloads and multi-currency support included. Upgrade to Starter or Pro when your business grows.

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Frequently Asked Questions

: Divide the annual invoice amount by 12 to get the monthly equivalent. A $6,000/year client contributes $500/month to your MRR.
: For small businesses, 5-10% month-over-month MRR growth is strong. For startups, 15-20% is good. Anything above 20% is exceptional. Consistency matters more than peaks.
: A 5% monthly churn rate means you lose about 46% of clients annually. Even 2% monthly churn results in ~22% annual loss. Reducing churn has a compounding positive effect on ARR.
: Track net revenue retention (NRR), customer churn rate, ARPA (average revenue per account), and LTV:CAC ratio. Together, these paint a complete picture of your recurring revenue health.
: Yes. When you manage recurring invoices through InvoiceBlitz, the dashboard shows your billing metrics including outstanding amounts, payment rates, and client billing history.

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