Short Definition

Add-on ARR is the increase in annual recurring revenue from an existing customer buying more of the same thing—e.g., more seats/units, a higher committed minimum, or a price-only increase—that became effective (go-live) this period. (Signed-not-live sits in CARR until start.)

Short Definition

Add-on ARR is the increase in annual recurring revenue from an existing customer buying more of the same thing—e.g., more seats/units, a higher committed minimum, or a price-only increase—that became effective (go-live) this period. (Signed-not-live sits in CARR until start.)

Short Definition

Add-on ARR is the increase in annual recurring revenue from an existing customer buying more of the same thing—e.g., more seats/units, a higher committed minimum, or a price-only increase—that became effective (go-live) this period. (Signed-not-live sits in CARR until start.)

Why it matters for Investors
  • Base-driven growth: Shows adoption/utilization inside the customer base.

  • Monetization signal: Highlights price and packaging levers working (minimums, true-ups, escalators).

  • Net Revenue Retention lift: Add-ons help push Net Revenue Retention > 100% if they outpace logo churn/contraction.

Why it matters for Investors
  • Base-driven growth: Shows adoption/utilization inside the customer base.

  • Monetization signal: Highlights price and packaging levers working (minimums, true-ups, escalators).

  • Net Revenue Retention lift: Add-ons help push Net Revenue Retention > 100% if they outpace logo churn/contraction.

Why it matters for Investors
  • Base-driven growth: Shows adoption/utilization inside the customer base.

  • Monetization signal: Highlights price and packaging levers working (minimums, true-ups, escalators).

  • Net Revenue Retention lift: Add-ons help push Net Revenue Retention > 100% if they outpace logo churn/contraction.

Formula


Practical considerations -

  • Scope: Existing customers only.

  • Include: More seats/units, higher annual minimum commit, price-only increase (same product/tier).

  • Timing: Count on the effective (go-live) date; signed-for-later → CARR.

  • Ramps: Pre-scheduled quantity/minimum/price step-ups count when the step starts (Add-on ramp).

  • Exclude: New modules/products (Cross-sell), higher tier/edition (Upsell), and uncommitted/overage usage (that’s revenue, not ARR).

  • Mixed change? Split once: Module added → Cross-sell; seats/minimum/price change → Add-on.

Formula


Practical considerations -

  • Scope: Existing customers only.

  • Include: More seats/units, higher annual minimum commit, price-only increase (same product/tier).

  • Timing: Count on the effective (go-live) date; signed-for-later → CARR.

  • Ramps: Pre-scheduled quantity/minimum/price step-ups count when the step starts (Add-on ramp).

  • Exclude: New modules/products (Cross-sell), higher tier/edition (Upsell), and uncommitted/overage usage (that’s revenue, not ARR).

  • Mixed change? Split once: Module added → Cross-sell; seats/minimum/price change → Add-on.

Formula


Practical considerations -

  • Scope: Existing customers only.

  • Include: More seats/units, higher annual minimum commit, price-only increase (same product/tier).

  • Timing: Count on the effective (go-live) date; signed-for-later → CARR.

  • Ramps: Pre-scheduled quantity/minimum/price step-ups count when the step starts (Add-on ramp).

  • Exclude: New modules/products (Cross-sell), higher tier/edition (Upsell), and uncommitted/overage usage (that’s revenue, not ARR).

  • Mixed change? Split once: Module added → Cross-sell; seats/minimum/price change → Add-on.

Worked Example

Starting ARR (Feb 28): $1,200,000
Period: March (snapshot Mar 31)

Account

Event

Effective by Mar 31?

Account ARR @ Mar-31 ($)

Δ ARR in March ($)

Category

Notes

A

New logo, annual
$24,000, starts Mar 4

Yes

$24,000

+$24,000

New Logo

Not Add-on

B

New logo, annual
$36,000, starts Apr 1

No

$0

$0

Booking / CARR

Signed, starts next month

C

+50 seats @ $200/seat/yr (prior $50,000) on Mar 15

Yes

$60,000 ($50,000 → $60,000)

+$10,000

Expansion — Add-on

More seats

D

Cancellation effective Mar 31
(prior $40,000)

Yes

$0

−$40,000

Logo Churn

Account to $0, included in Churn

E

Contracted step-up minimum $20,000 → $35,000 on Mar 1

Yes

$35,000

+$15,000

Expansion — Add-on (ramp)

Pre-agreed minimum increase

F

Price-only increase: 100 seats $120 → $130 on Mar 20

Yes

$13,000 ($12,000 → $13,000)

+$1,000

Expansion — Add-on (price)

Same tier/qty

G

Add Analytics module +$7,000 on Mar 25 (prior $30,000)

Yes

$37,000 ($30,000 → $37,000)

+$7,000

Expansion — Cross-sell

Not Add-on


Add-on ARR (March): $26,000 = $10,000 (C) + $15,000 (E) + $1,000 (F)


ARR Bridge (March):

  • New Logo ARR: +$24,000 (A)

  • Expansion ARR: +$33,000 = Add-on $26,000 (C+E+F) + Cross-sell $7,000 (G)

  • Contraction ARR: $0

  • Logo Churn ARR: −$40,000 (D)

  • Net New ARR: $24,000 + $33,000 − $40,000 = +$17,000

  • Ending ARR (Mar 31): $1,200,000 + $17,000 = $1,217,000


Notes:

  • Add-on = more of the same product (quantity/minimum/price).

  • G is Cross-sell (new module), not Add-on.

  • Ramped step-ups (E) count when they start.

  • Signed-not-live stays in CARR until effective.

Worked Example

Starting ARR (Feb 28): $1,200,000
Period: March (snapshot Mar 31)

Account

Event

Effective by Mar 31?

Account ARR @ Mar-31 ($)

Δ ARR in March ($)

Category

Notes

A

New logo, annual
$24,000, starts Mar 4

Yes

$24,000

+$24,000

New Logo

Not Add-on

B

New logo, annual
$36,000, starts Apr 1

No

$0

$0

Booking / CARR

Signed, starts next month

C

+50 seats @ $200/seat/yr (prior $50,000) on Mar 15

Yes

$60,000 ($50,000 → $60,000)

+$10,000

Expansion — Add-on

More seats

D

Cancellation effective Mar 31
(prior $40,000)

Yes

$0

−$40,000

Logo Churn

Account to $0, included in Churn

E

Contracted step-up minimum $20,000 → $35,000 on Mar 1

Yes

$35,000

+$15,000

Expansion — Add-on (ramp)

Pre-agreed minimum increase

F

Price-only increase: 100 seats $120 → $130 on Mar 20

Yes

$13,000 ($12,000 → $13,000)

+$1,000

Expansion — Add-on (price)

Same tier/qty

G

Add Analytics module +$7,000 on Mar 25 (prior $30,000)

Yes

$37,000 ($30,000 → $37,000)

+$7,000

Expansion — Cross-sell

Not Add-on


Add-on ARR (March): $26,000 = $10,000 (C) + $15,000 (E) + $1,000 (F)


ARR Bridge (March):

  • New Logo ARR: +$24,000 (A)

  • Expansion ARR: +$33,000 = Add-on $26,000 (C+E+F) + Cross-sell $7,000 (G)

  • Contraction ARR: $0

  • Logo Churn ARR: −$40,000 (D)

  • Net New ARR: $24,000 + $33,000 − $40,000 = +$17,000

  • Ending ARR (Mar 31): $1,200,000 + $17,000 = $1,217,000


Notes:

  • Add-on = more of the same product (quantity/minimum/price).

  • G is Cross-sell (new module), not Add-on.

  • Ramped step-ups (E) count when they start.

  • Signed-not-live stays in CARR until effective.

Worked Example

Starting ARR (Feb 28): $1,200,000
Period: March (snapshot Mar 31)

Account

Event

Effective by Mar 31?

Account ARR @ Mar-31 ($)

Δ ARR in March ($)

Category

Notes

A

New logo, annual
$24,000, starts Mar 4

Yes

$24,000

+$24,000

New Logo

Not Add-on

B

New logo, annual
$36,000, starts Apr 1

No

$0

$0

Booking / CARR

Signed, starts next month

C

+50 seats @ $200/seat/yr (prior $50,000) on Mar 15

Yes

$60,000 ($50,000 → $60,000)

+$10,000

Expansion — Add-on

More seats

D

Cancellation effective Mar 31
(prior $40,000)

Yes

$0

−$40,000

Logo Churn

Account to $0, included in Churn

E

Contracted step-up minimum $20,000 → $35,000 on Mar 1

Yes

$35,000

+$15,000

Expansion — Add-on (ramp)

Pre-agreed minimum increase

F

Price-only increase: 100 seats $120 → $130 on Mar 20

Yes

$13,000 ($12,000 → $13,000)

+$1,000

Expansion — Add-on (price)

Same tier/qty

G

Add Analytics module +$7,000 on Mar 25 (prior $30,000)

Yes

$37,000 ($30,000 → $37,000)

+$7,000

Expansion — Cross-sell

Not Add-on


Add-on ARR (March): $26,000 = $10,000 (C) + $15,000 (E) + $1,000 (F)


ARR Bridge (March):

  • New Logo ARR: +$24,000 (A)

  • Expansion ARR: +$33,000 = Add-on $26,000 (C+E+F) + Cross-sell $7,000 (G)

  • Contraction ARR: $0

  • Logo Churn ARR: −$40,000 (D)

  • Net New ARR: $24,000 + $33,000 − $40,000 = +$17,000

  • Ending ARR (Mar 31): $1,200,000 + $17,000 = $1,217,000


Notes:

  • Add-on = more of the same product (quantity/minimum/price).

  • G is Cross-sell (new module), not Add-on.

  • Ramped step-ups (E) count when they start.

  • Signed-not-live stays in CARR until effective.

Best Practices
  • Tag the driver: Seats/units vs. minimum vs. price-only; report each line.

  • Watch ramps & escalators: Keep a simple CARR list of future-dated add-ons and check they went live.

  • Segment: By customer size, cohort, and product to see where add-ons land best.

  • Reconcile monthly: Tie your add-on totals to the ARR bridge and contract change log.

  • Guardrails: Use clear rules for price increases/minimum floors; avoid permanent discounts—prefer time-boxed credits.

Best Practices
  • Tag the driver: Seats/units vs. minimum vs. price-only; report each line.

  • Watch ramps & escalators: Keep a simple CARR list of future-dated add-ons and check they went live.

  • Segment: By customer size, cohort, and product to see where add-ons land best.

  • Reconcile monthly: Tie your add-on totals to the ARR bridge and contract change log.

  • Guardrails: Use clear rules for price increases/minimum floors; avoid permanent discounts—prefer time-boxed credits.

Best Practices
  • Tag the driver: Seats/units vs. minimum vs. price-only; report each line.

  • Watch ramps & escalators: Keep a simple CARR list of future-dated add-ons and check they went live.

  • Segment: By customer size, cohort, and product to see where add-ons land best.

  • Reconcile monthly: Tie your add-on totals to the ARR bridge and contract change log.

  • Guardrails: Use clear rules for price increases/minimum floors; avoid permanent discounts—prefer time-boxed credits.

FAQs
  1. Add-on vs Upsell vs Cross-sell?
    Add-on: more seats/units, higher minimum, or price-only increase (same product/tier). Upsell: move to a higher tier/edition. Cross-sell: buy a new paid module/product.

  2. When do we count it?
    On the effective (go-live) date—never when just signed.

  3. Do price-only increases count?
    Yes—those are Add-on (price).

  4. Does uncommitted usage count?
    No—pure overage without a higher commitment is revenue, not ARR.

  5. Can Add-on ARR be negative?
    No. Reductions are Contraction (Down-sell or Reduction), not negative Add-on.

FAQs
  1. Add-on vs Upsell vs Cross-sell?
    Add-on: more seats/units, higher minimum, or price-only increase (same product/tier). Upsell: move to a higher tier/edition. Cross-sell: buy a new paid module/product.

  2. When do we count it?
    On the effective (go-live) date—never when just signed.

  3. Do price-only increases count?
    Yes—those are Add-on (price).

  4. Does uncommitted usage count?
    No—pure overage without a higher commitment is revenue, not ARR.

  5. Can Add-on ARR be negative?
    No. Reductions are Contraction (Down-sell or Reduction), not negative Add-on.

FAQs
  1. Add-on vs Upsell vs Cross-sell?
    Add-on: more seats/units, higher minimum, or price-only increase (same product/tier). Upsell: move to a higher tier/edition. Cross-sell: buy a new paid module/product.

  2. When do we count it?
    On the effective (go-live) date—never when just signed.

  3. Do price-only increases count?
    Yes—those are Add-on (price).

  4. Does uncommitted usage count?
    No—pure overage without a higher commitment is revenue, not ARR.

  5. Can Add-on ARR be negative?
    No. Reductions are Contraction (Down-sell or Reduction), not negative Add-on.

Related Metrics


Commonly mistaken for:

  • Upsell ARR (ARR from tier upgrades, not optional features)

  • Cross-sell ARR (ARR from distinct products, not add-ons)

  • New Logo ARR (ARR from new customers, not existing ones)

Related Metrics


Commonly mistaken for:

  • Upsell ARR (ARR from tier upgrades, not optional features)

  • Cross-sell ARR (ARR from distinct products, not add-ons)

  • New Logo ARR (ARR from new customers, not existing ones)

Related Metrics


Commonly mistaken for:

  • Upsell ARR (ARR from tier upgrades, not optional features)

  • Cross-sell ARR (ARR from distinct products, not add-ons)

  • New Logo ARR (ARR from new customers, not existing ones)