CARR vs ARR: What's the Difference and When to Use Each

Q: What does CARR stand for in SaaS?

CARR stands for Committed Annual Recurring Revenue. It's ARR adjusted for signed-but-not-started contracts and known upcoming cancellations. It reflects what you've committed to earn, not just what you're billing today.

Q: Is CARR always higher than ARR?

Not necessarily. If you have more committed churn than signed new contracts, CARR will be lower than ARR. CARR > ARR signals growth momentum; CARR < ARR signals contraction. Neither is inherently good or bad, it depends on the gap size and what's driving it.

Q: Do bootstrapped SaaS founders need to track CARR?

Only if they have meaningful lag between contract signature and billing start. Most bootstrapped SaaS products (Stripe-billed, instant-start subscriptions) have CARR = ARR because there are no signed-but-not-live deals. Track ARR; introduce CARR when you have enterprise contracts with implementation periods.

Q: How often should I calculate CARR?

Monthly, at the same time you calculate ARR. The gap between CARR and ARR is more meaningful as a trend than as a point-in-time number. If the gap is expanding, your pipeline is strong. If it's shrinking, your sales velocity is slowing or churn is accelerating.

Q: How is CARR different from TCV?

TCV (Total Contract Value) is the total value of a contract across its full term. CARR annualises the committed recurring value. A 3-year €30,000 contract has a TCV of €90,000 and a CARR contribution of €30,000/year. They answer different questions: TCV is about total commitment; CARR is about annual revenue trajectory.

Q: Should I report CARR or ARR to investors?

Report ARR as your primary revenue metric, it's the standard. Report CARR as supplementary context if you have a meaningful gap. Never present CARR as a substitute for ARR. Investors who ask about CARR are usually asking about your pipeline-to-revenue conversion quality, not trying to replace ARR in their model.

Q: What if my customers are on monthly plans: how do I calculate ARR?

Multiply your current MRR by 12. Monthly customers are active but not committed beyond the current month, so they contribute to ARR but not to CARR beyond that month. The ARR formula guide covers the exact calculation with edge cases.

Q: Can CARR include expansion from existing customers?

Some frameworks include anticipated expansion from current customers in CARR if the expanded contract is signed. Most commonly, CARR is limited to new contracts and committed churn adjustments to existing ARR. Expansion that isn't yet contractually committed should stay out, otherwise CARR starts resembling a revenue forecast rather than a committed number. --- > Track your ARR automatically from Stripe. NoNoiseMetrics pulls your Stripe subscription data and calculates ARR, MRR, expansion, and contraction, updated every sync. > > Connect Stripe and see your ARR → ---

Q: ARR and MRR Dashboard

Need to see ARR, MRR, and all the components (new, expansion, contraction, churn) in one place? The MRR Dashboard Template gives you a ready-made structure for tracking recurring revenue metrics.

CARR vs ARR is a question that surfaces when your pipeline starts to matter as much as your current book of business. ARR (Annual Recurring Revenue) counts what you’re billing right now. CARR (Committed ARR) counts what you’re contracted to bill, including signed deals that haven’t started yet. For most early-stage bootstrapped founders, ARR is the right number to track. CARR becomes relevant when you have a meaningful gap between signed contracts and live billing.

CARR (Committed ARR) is ARR plus the annualised value of signed contracts not yet generating revenue. It represents your revenue commitment from customers, both active and contracted-but-not-started.

CARR vs ARR: What They Measure and When Each Matters

The Formulas

ARR = Monthly Recurring Revenue × 12
   (or sum of all active annual subscription values)

CARR = ARR + (Annualised value of signed, not-yet-live contracts)
     - (Annualised value of known churn not yet processed)

A cleaner way to think about it:

CARR = ARR + Signed New Contracts (annualised) - Committed Churn (annualised)

What each term means:

ARR, revenue you’re actively billing and receiving right now
Signed New Contracts (annualised), deals signed but with a future start date, converted to annual value
Committed Churn (annualised), customers who’ve given notice and will cancel, converted to annual value

For a deep dive on ARR alone, see how to calculate ARR and the ARR formula guide.

Worked Example: ARR vs CARR

You run a SaaS product with the following situation:

Current state:

Active subscriptions billing: €180,000 ARR
Two enterprise deals signed, starting next quarter: €24,000 each = €48,000
One customer who gave notice last month (cancelling in 30 days): €15,600 ARR

ARR calculation:

ARR = €180,000
(just what's currently billing)

CARR calculation:

CARR = €180,000 + €48,000 - €15,600 = €212,400

Your CARR (€212,400) is 18% higher than your ARR (€180,000). This gap tells you something meaningful: your forward revenue position is stronger than your current billing suggests.

If instead your CARR were lower than ARR, it would signal known future contraction, a leading indicator that deserves immediate attention.

When ARR Is the Right Metric

For most bootstrapped SaaS products, ARR is the right number to track and report. ARR reflects reality: what you’re actually billing, what’s in your bank account. It doesn’t require predictions or pipeline assumptions.

ARR is the right metric when:

You’re on monthly subscriptions (no signed-but-not-started deals)
All new customers start billing immediately after signing up
You have no material gap between contract signature and billing start

This describes the majority of bootstrapped and indie SaaS products. Stripe bills instantly, you don’t have “signed enterprise deals not yet live.” In that world, CARR = ARR and the distinction is meaningless.

For a thorough look at what ARR means and how to avoid the common traps, see annual recurring revenue meaning.

When CARR Matters More Than ARR

CARR becomes meaningful when you have material lag between contract and revenue. This typically happens when:

You have enterprise contracts with implementation periods. A deal signed in February that goes live in May creates a €0 ARR entry in February and a full ARR entry in May, but CARR would capture it in February when the commitment was made.

You’re fundraising and want to show forward momentum. Investors familiar with SaaS metrics know the difference. CARR in a pitch deck tells a more accurate story of where you’re heading than ARR if you have a strong pipeline of signed-but-not-started deals.

You’re managing churn that hasn’t processed yet. If a customer gives 60 days notice, their ARR is still showing until they cancel, but their committed churn should reduce your forward revenue picture. CARR captures this; ARR doesn’t.

You have annual contracts with future starts. If you close an annual deal in December for a January 1 start, ARR at December 31 looks flat. CARR reflects the commitment.

CARR vs ARR in the Context of MRR

The same distinction exists at monthly level, some teams use CMRR (Committed MRR) for the same reason. But MRR-level lag is usually short enough that CMRR vs MRR is a minor distinction.

The MRR traps are separate from the CARR/ARR distinction. One-time fees, implementation fees, and professional services should be excluded from both MRR and ARR. See what is MRR, the traps that fake growth for a list of what not to include.

CARR Benchmarks and What Investors Look For

CARR vs ARR is a leading indicator conversation. When CARR significantly exceeds ARR, it signals a strong near-term revenue trajectory. When CARR lags ARR (committed churn > signed new contracts), it signals contraction.

According to Bessemer Venture Partners and a16z, the metrics investors care about:

CARR/ARR ratio > 1.1, strong forward position, more revenue committed than currently billing
CARR/ARR ratio < 0.95, contraction signal, more churn committed than new contracts
CARR/ARR ratio = 1.0, neutral, forward and current revenue in balance

For bootstrapped founders, a simpler framing: if your sales pipeline consistently converts to CARR that’s 15%+ above your ARR, you have a predictable growth engine. That’s worth tracking.

Common Mistakes With CARR

Including unqualified pipeline. CARR should only include signed contracts, legally committed deals. A letter of intent, a verbal commitment, or a trial extension doesn’t count. Inflating CARR with soft pipeline destroys the metric’s value.

Forgetting committed churn. Many founders calculate CARR as ARR + new contracts without subtracting known cancellations. This creates an optimistic picture that doesn’t reflect reality. If you know a customer is churning, deduct their ARR from CARR immediately.

Using CARR as ARR. In your Stripe dashboard and financial reporting, use ARR. CARR is a forward-looking management metric, not a financial reporting number. Mixing them causes confusion in financial statements.

Annualising monthly contracts into CARR. CARR should represent committed contracts. A monthly subscription is not committed beyond the current month, the customer can cancel next month. Don’t annualise monthly customers into CARR unless they’re on annual plans.

When to Switch From ARR to Reporting CARR

You don’t need to choose, most mature SaaS businesses track both. But if you’re asking when CARR starts to matter:

When you have any signed deals with a future start date
When you have any customers who’ve given churn notice
When your sales cycle is long enough that there’s a consistent gap between close and billing
When you’re raising a round and want to show momentum beyond current billing

For most bootstrapped SaaS founders reading this, that moment is when you start closing multi-month or annual deals with a distinct contract signature step. Before that, ARR is sufficient and CARR would add complexity without insight.

FAQ

What does CARR stand for in SaaS?

CARR stands for Committed Annual Recurring Revenue. It’s ARR adjusted for signed-but-not-started contracts and known upcoming cancellations. It reflects what you’ve committed to earn, not just what you’re billing today.

Is CARR always higher than ARR?

Not necessarily. If you have more committed churn than signed new contracts, CARR will be lower than ARR. CARR > ARR signals growth momentum; CARR < ARR signals contraction. Neither is inherently good or bad, it depends on the gap size and what’s driving it.

Do bootstrapped SaaS founders need to track CARR?

Only if they have meaningful lag between contract signature and billing start. Most bootstrapped SaaS products (Stripe-billed, instant-start subscriptions) have CARR = ARR because there are no signed-but-not-live deals. Track ARR; introduce CARR when you have enterprise contracts with implementation periods.

How often should I calculate CARR?

Monthly, at the same time you calculate ARR. The gap between CARR and ARR is more meaningful as a trend than as a point-in-time number. If the gap is expanding, your pipeline is strong. If it’s shrinking, your sales velocity is slowing or churn is accelerating.

How is CARR different from TCV?

TCV (Total Contract Value) is the total value of a contract across its full term. CARR annualises the committed recurring value. A 3-year €30,000 contract has a TCV of €90,000 and a CARR contribution of €30,000/year. They answer different questions: TCV is about total commitment; CARR is about annual revenue trajectory.

Should I report CARR or ARR to investors?

Report ARR as your primary revenue metric, it’s the standard. Report CARR as supplementary context if you have a meaningful gap. Never present CARR as a substitute for ARR. Investors who ask about CARR are usually asking about your pipeline-to-revenue conversion quality, not trying to replace ARR in their model.

What if my customers are on monthly plans: how do I calculate ARR?

Multiply your current MRR by 12. Monthly customers are active but not committed beyond the current month, so they contribute to ARR but not to CARR beyond that month. The ARR formula guide covers the exact calculation with edge cases.

Can CARR include expansion from existing customers?

Some frameworks include anticipated expansion from current customers in CARR if the expanded contract is signed. Most commonly, CARR is limited to new contracts and committed churn adjustments to existing ARR. Expansion that isn’t yet contractually committed should stay out, otherwise CARR starts resembling a revenue forecast rather than a committed number.

Track your ARR automatically from Stripe. NoNoiseMetrics pulls your Stripe subscription data and calculates ARR, MRR, expansion, and contraction, updated every sync.

Connect Stripe and see your ARR →

ARR and MRR Dashboard

Need to see ARR, MRR, and all the components (new, expansion, contraction, churn) in one place? The MRR Dashboard Template gives you a ready-made structure for tracking recurring revenue metrics.