ARR, MRR and Recognized Revenue: Why the Numbers Differ

Say a customer signs on October 1 for twelve months at $60,000, invoiced annually up front and paid in November. Here is how each measure treats it:

• Bookings: say the contract is booked at $60,000 in October, when it is signed.
• Billings: if you invoice at signature, billings are $60,000 in October.
• Cash: say the customer pays in November, so you collect $60,000 that month.
• MRR: for example, $5,000 per month while the contract is live.
• ARR: MRR times twelve, so say MRR of $5,000 gives $60,000 of ARR.
• Recognized revenue: for example, $5,000 per month, so $15,000 for the quarter ending December 31.
• Deferred revenue: if you look at December 31, $45,000 is billed but not yet earned.

Each number answers a different question: what did we sell, what did we invoice, what did we collect, what is our recurring run rate and what did we earn. Confusing them is the source of most metric disputes.

For a subscription business, recognized revenue equals billings plus the opening deferred revenue balance minus the closing deferred revenue balance. Written another way, revenue is billings minus the increase in deferred revenue.

If you billed $60,000 in the quarter and deferred revenue rose from $0 to $45,000, revenue is $15,000. When billings grow faster than revenue, deferred revenue is building, which usually means you are signing more prepaid or annual contracts. When revenue exceeds billings, deferred revenue is being consumed.

Use the identity as a check each month. If revenue, billings and the change in the deferred revenue balance do not tie, some contracts are recorded incorrectly. The deferred revenue guide shows the ledger entries and how to schedule them.

Metric definitions are policy choices. Document them once so that sales, finance and investors use the same numbers:

• Start date: does ARR begin at signature or when service goes live? Many companies track contracted ARR and live ARR separately.
• Discounts and free periods: is ARR based on the list price, the discounted price or the price after a free period ends?
• Usage and overages: do you include committed minimums only, or variable charges too?
• One-time fees: implementation and training are not recurring and are normally excluded from ARR.
• Multi-year and ramp deals: do you use the current year's amount or the average?
• Churn timing: does ARR drop at notice of non-renewal or at contract end?

Recognized revenue follows accounting rules under ASC 606, which requires you to identify the contract, the performance obligations, the price, its allocation and the timing of recognition. A subscription is often recognized evenly over the term, but bundled deals require judgment, so confirm with your accountant.

Use each number where it fits:

• Sales compensation and pipeline: bookings.
• Cash planning and lender conversations: billings and collections.
• Operating trends and investor updates: MRR and ARR, with the definition attached.
• Financial statements, audits, tax and valuation work: recognized revenue.

For reference, private B2B SaaS companies had a median ARR growth of 25 percent in 2024¹. If your ARR growth looks strong but revenue and cash lag, the difference is often timing, such as contracts signed late in the quarter or start dates in the future, and you should be ready to explain it.

Billing software tracks MRR and invoices in real time, as described in the billing platform comparison, and your ledger holds the accounting view. Keep a monthly reconciliation between them.

Watch for these problems:

• Counting one-time services or non-recurring usage in ARR.
• Reporting bookings as revenue in a board deck.
• Multiplying a strong month of usage by twelve and calling it ARR.
• Ignoring downgrades and churn until renewal dates pass.
• Recording annual invoices as revenue when billed. Under accrual accounting that breaks the identity above.
• Using different definitions in different places, such as one ARR figure for investors and another in your forecast.

If you are building a driver-based forecast, tie the drivers to these definitions in the SaaS financial model guide, and compare planning tools in the planning software comparison. For the ledger side, the accounting system comparison covers options for revenue schedules.