What Is Annual Recurring Revenue (ARR)?

Annual recurring revenue — almost always shortened to ARR — is the single number the SaaS world uses to size a subscription business. When a founder says they are "at $3M," they mean $3 million in ARR. It is the metric on the board slide, the basis for valuations, and the milestone everyone races toward. Yet plenty of teams report it loosely, which is how two companies with identical bank balances end up quoting very different numbers.

This guide covers annual recurring revenue from the ground up: a precise definition, the formula and worked examples, what belongs in the number and what does not, and how to actually use ARR to run a company rather than just recite it.

Annual recurring revenue, defined

Annual recurring revenue is the normalized, twelve-month value of all your active recurring subscriptions. Two words carry the weight. "Recurring" means only revenue that repeats on a subscription counts — one-time fees are excluded. "Normalized" means every plan is converted to a consistent annual figure regardless of whether the customer pays monthly, quarterly, or yearly.

Put plainly, ARR answers a forward-looking question: if your subscription book stayed exactly as it is today, how much recurring revenue would it produce over the next twelve months? That makes it a run rate, not a record of cash collected. It is closely related to monthly recurring revenue— in fact ARR is just MRR annualized — and if you want the shorter canonical explainer, see our overview of ARR.

How to calculate annual recurring revenue

There are two equivalent ways to get to ARR, and they should agree.

ARR = MRR × 12

ARR = Sum of the annualized value of every active subscription

The first is the fast path if you already track MRR. The second builds ARR directly from contracts, which is cleaner when you sell annual deals.

A worked example

Say you have 50 customers on a $500/month plan and 20 customers on a $9,000/year plan. The monthly customers contribute 50 × $500 = $25,000 of MRR, or $300,000 annualized. The annual customers contribute 20 × $9,000 = $180,000 of ARR directly. Total ARR is $300,000 + $180,000 = $480,000. Divide by twelve and your MRR is $40,000 — the two views reconcile, exactly as they should.

What to include and exclude in ARR

The most common way to overstate annual recurring revenue is to sweep in money that does not recur. Keep the number honest with these rules.

• Include: recurring subscription fees, recurring per-seat charges, and committed recurring add-ons that renew with the contract.
• Exclude one-time fees: setup, onboarding, implementation, and professional-services charges are real revenue but they are not recurring, so they never belong in ARR.
• Exclude variable usage overages: unless usage is genuinely predictable and contractually committed, spiky consumption-based charges distort the run rate.
• Exclude trials and unconverted signups: a free trial is not yet recurring revenue. Count it only once it converts to a paid subscription.
• Reflect discounts: a customer on a coupon contributes their discounted price, not list price.

Why annual recurring revenue matters

ARR is not just a vanity milestone; it does real work across the business.

• Valuation: SaaS companies are commonly valued as a multiple of ARR. A cleaner, well-documented ARR directly affects the number an investor or acquirer is willing to pay.
• Planning: Because ARR is a stable annual run rate, it anchors headcount plans, budgets, and growth targets without the noise of month-to-month swings.
• Benchmarking: Milestones like $1M and $10M ARR are a shared industry language, letting you compare your trajectory to peers and to your own past.
• Fundraising: Investors underwrite on ARR growth rate and net revenue retention. A credible ARR figure is table stakes for a serious raise.

Growing annual recurring revenue

There are only four levers that move ARR, and knowing which one you are pulling keeps growth intentional.

New business

ARR added by brand-new customers. It is the most visible lever and usually the most expensive, since it carries the full weight of your acquisition cost.

Expansion

ARR added when existing customers upgrade, add seats, or buy add-ons. Expansion is typically the most capital-efficient growth you have, because you have already paid to acquire the account. Our deep dive on expansion revenue explains why healthy SaaS companies lean on it so heavily.

Contraction and churn

The two subtractions: contraction is ARR lost to downgrades, and churn is ARR lost to cancellations. Net ARR growth is new plus expansion minus contraction and churn, so a business can grow new bookings quickly and still stall if the bottom two lines leak faster.

ARR growth rate and benchmarks

The absolute ARR figure matters less than how fast it is growing and how well it holds. Two derived numbers do most of the work here.

ARR growth rate

Your year-over-year ARR growth rate is the headline investors underwrite. A company that grows from $1M to $2M in a year has doubled — a 100% growth rate — while one that goes from $10M to $13M grew 30%. Growth rate naturally decays as the base gets larger, so a "good" number is always stage-relative. Early-stage companies are often expected to at least double year over year; that pace becomes unrealistic at scale.

Net revenue retention

The other half of a healthy ARR story is how the existing base behaves without any new logos. Net revenue retention captures whether expansion is outrunning contraction and churn across your current customers. When it sits above 100%, your ARR grows even if new sales pause — a sign of a durable business. Many strong SaaS companies run 110% to 130%. A fast-growing top line built on a leaky base is far less valuable than slower growth on a base that expands on its own.

Together, growth rate and retention explain why two companies at the same ARR can be valued very differently. A $5M-ARR business growing 80% with 120% net retention is a fundamentally healthier asset than a $5M-ARR business growing 20% while shedding customers, even though the run-rate number on the slide is identical.

Tracking ARR without the spreadsheet drift

Calculating annual recurring revenue by hand gets fragile fast. Once you have proration, mid-cycle upgrades, coupons, and a mix of billing intervals, a spreadsheet quietly accumulates errors, and different people arrive at different ARR numbers. That erodes trust in the metric right when you need it most.

StripeReport connects to Stripe with a read-only key and computes ARR and MRR from the same normalized subscription data, broken into new, expansion, contraction, and churn. You get a stable run rate plus the movements behind it, delivered as daily email and Slack reports. If you are choosing which frame to lead with, our comparison of MRR vs ARR helps, and the Stripe ARR tracking guide walks through the full setup.

Key takeaways

• Annual recurring revenue is the normalized twelve-month value of your active recurring subscriptions — a forward-looking run rate, not cash collected.
• Calculate it as MRR × 12 or by summing annualized contract values; the two paths should reconcile.
• Exclude one-time fees, variable overages, and trials, and reflect discounts, or you will overstate the number.
• ARR drives valuation, planning, benchmarking, and fundraising, and it moves on four levers: new, expansion, contraction, and churn.
• Automate the calculation so ARR stays consistent and trustworthy as your billing gets more complex.