年次経常収益（ARR）

ARR is the annualized value of recurring subscription revenue from active or contracted customers. SaaS teams use it to explain business scale, growth quality, investor reporting, hiring capacity, and planning discipline. The key boundary is that ARR measures repeatable revenue; one-time services, setup fees, refunds, taxes, and cash timing should not inflate it.

The fast formula is MRR multiplied by 12. For operating reviews, use an ARR bridge so the team can explain what changed and why. Basic formula | ARR = MRR x 12 | Use it to annualize current recurring revenue ARR bridge | Beginning ARR + New ARR + Expansion ARR - Contraction ARR - Churn ARR = Ending ARR | Use it to explain growth quality Short contracts | Cap ARR at the recurring contract value for terms shorter than 12 months | Avoid overstating a six-month deal as a full-year base

ARR is only useful when the inclusion rules stay consistent. If each team uses a different definition, growth rate, churn, and valuation discussions become unreliable. Include | Active subscriptions, annual contracts, annualized monthly contracts, recurring upsells, recurring add-ons | They represent repeatable revenue Exclude | Setup fees, implementation services, one-time consulting, taxes, refunds, credits, one-off usage spikes, hardware revenue | They do not represent a stable recurring base Define explicitly | Usage-based revenue, mid-month starts, discounts, dormant contracts, contracted-but-not-billed revenue | Company policy matters, so document it

ARR growth can come from healthy expansion or from expensive new acquisition that hides churn. Breaking ARR into drivers reveals the quality of growth. New ARR | Revenue from new customers | Read with CAC and sales productivity Expansion ARR | Upsells, additional seats, add-on products | Indicates account growth and product value Contraction ARR | Downgrades or seat reductions | Signals retention, pricing, or adoption risk Churn ARR | Lost recurring revenue from cancellations | Shows leakage in the recurring base

Guides hiring, infrastructure, customer success, and budget commitments. Gives boards and investors a common language for predictable revenue. Helps compare annual contracts, monthly contracts, discounts, and expansion motions.

• Guides hiring, infrastructure, customer success, and budget commitments.
• Gives boards and investors a common language for predictable revenue.
• Helps compare annual contracts, monthly contracts, discounts, and expansion motions.

• ARR is useful for annual planning; MRR is better for monthly movement.
• Including one-time revenue overstates predictability.
• ARR growth can hide churn if expansion is large.
• Annual prepayment improves cash timing but should not change the recurring revenue definition.
• ARR should be read together with MRR, Churn Rate, and NRR after contract, billing, and CRM definitions are aligned.

When ARR becomes a company KPI, write down the calculation policy and keep CRM, billing, finance, and board reporting aligned. Decide whether ARR is based on list price or discounted contract value. Decide whether contracted-but-not-billed revenue counts. Read ARR with gross margin, NRR, churn, CAC payback, and cash runway.

• Decide whether ARR is based on list price or discounted contract value.
• Decide whether contracted-but-not-billed revenue counts.
• Read ARR with gross margin, NRR, churn, CAC payback, and cash runway.

ARR is powerful, but it does not explain all growth quality by itself. Pair it with retention, acquisition, and unit-economics metrics. MRR | Monthly recurring revenue | Detects movement before it shows up in annual views NRR | Existing-customer revenue retention and expansion | Shows whether the base grows without new customers Churn Rate | Customer or revenue loss | Explains leakage behind ARR changes ARPU / ACV | Average revenue per user or contract | Separates price growth from customer growth CAC / LTV | Acquisition cost and customer value | Tests whether ARR growth is efficient

An enterprise SaaS company signs $1.2M in annual subscriptions and $300k in one-time implementation services. It reports $1.2M ARR and excludes the implementation revenue. In the next quarter, existing customers add $240k, one account contracts by $120k, and another churns $180k. The ARR bridge shows +$240k - $120k - $180k, making it clear whether growth comes from expansion or is being offset by leakage.

Revenue | Accounting revenue for a period | ARR only annualizes the recurring portion Cash collected | Actual cash inflow | ARR ignores billing timing and focuses on the recurring base Bookings | Contracted order value | ARR includes only the repeatable revenue component MRR | Monthly recurring revenue | ARR is the annual lens on the same recurring base NRR | Existing-customer revenue retention and expansion | Helps explain the quality of ARR growth ACV | Average annual contract value | ARR is the total recurring base across customers

• ARR is not annual cash collected; prepayment changes cash timing, not the recurring revenue definition.
• ARR growth does not guarantee profitability; gross margin, CAC, churn, and support cost still matter.
• One-time services and setup fees should not be included just because they are billed annually.
• Usage-based revenue is not automatically excluded; committed recurring minimums can be included if the policy is explicit.