Live NDR desk for ending ÷ beginning cohort MRR, with a cohort bridge peel, SaaS band ladder, and net-churn mirror.
Planning sketch only. Not GAAP/IFRS metrics, audited reporting, or investment advice. Align cohort definitions with your finance team.
By Ahmet C. Toplutaş·Site owner & editor · Business tools
Last updated May 21, 2026 · Reviewed May 21, 2026 · Planning estimates only - not tax, medical, or investment advice
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Net Dollar Retention asks how much recurring revenue remains (and grows) from a starting cohort, after expansion, contraction, and churn. The desk leads with ending ÷ beginning as a percent.
This page's framing is an NDR desk, with a cohort bridge peel, a SaaS band ladder, and a net-churn mirror. It is not net-churn's cover-ratio hero, not the MRR waterfall that includes new logos, and not gross logo churn's annualize/survival strip.
Decision framing: “If we sold zero new logos, did the starting book grow or shrink on dollars?”
Planning sketch only. Not GAAP/IFRS metrics, audited reporting, tax advice, or investment advice. Align cohort windows with your finance team. See our disclaimers.
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Ending MRR = beginning + expansion − contraction − churned. The peel keeps those moves honest so NDR is not an opaque ratio. GRR (ex-expansion) prints quietly as (begin − churned − contraction) ÷ begin.
Tip: load Elite 120%+. Watch expansion dominate while GRR stays below NDR.
New-logo MRR stays off this bridge. When acquisition belongs in the month story, use the MRR calculator.
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The ladder marks literacy rungs at 90%, 100%, 110%, and 120%. Crossing 100% means the cohort grew without new sales. Higher bands are often discussed in SaaS operating reviews; they are not a peer database and not a fundraising guarantee.
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Under a matching definition, net revenue churn ≈ 100% − NDR. The mirror prints that inverse so you can hop to cover-ratio depth on net churn without re-entering the same dollars as a different hero.
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Ending stock, NDR, GRR, and mirror.
Example: begin $100k + $18k expansion − $3k contraction − $5k churned → end $110k → NDR 110%, GRR 92%, net-churn mirror −10%.
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Sibling boards when the job is net churn cover, NRR labeling, MRR, or logo loss.
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Scenario A: Strong 110%. Expansion lifts ending above begin; band ladder sits in the strong rung.
Load Below 100%: contraction and churned outweigh expansion; NDR falls under par.
Scenario B: Elite 120%+. Expansion dominates. GRR can still look merely OK while NDR looks elite.
Scenario C: Near 100%. Flat cohort dollars. Useful when you need stability language before chasing expansion programs.
Scenario D: Need cover ratio. Hand the same movements to net churn for expansion ÷ gross loss.
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Stop here for ending÷beginning cohort dollar retention with a bridge and band ladder. Hand off for cover-ratio net churn, month waterfall with new logos, or logo loss.
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It closes an NDR desk as ending cohort MRR ÷ beginning cohort MRR. A cohort bridge peels begin + expansion − contraction − churned to ending, a SaaS band ladder marks 90/100/110/120% literacy rungs, and a net-churn mirror shows 100% − NDR.
NDR measures how much recurring revenue you keep and grow from a starting customer cohort, after expansion, contraction, and churn. New logos are excluded. Values above 100% mean the cohort grew on dollars even without new sales.
Ending MRR = beginning + expansion − contraction − churned. The bridge keeps those moves visible so NDR is not just an opaque end÷start ratio.
Gross Revenue Retention here is (beginning − churned − contraction) ÷ beginning. It excludes expansion. Deeper GRR storytelling may live on related retention boards; this page’s hero is NDR.
Net churn owns (gross loss − expansion) ÷ begin with a cover-ratio companion. MRR owns month movement including new logos. This page owns ending÷beginning cohort retention with a band ladder and net-churn mirror.
Teams often use NDR and NRR for the same cohort dollar-retention idea. This board is labeled NDR. The net revenue retention page may emphasize adjacent framing; keep your finance definition consistent.
No. It is a planning sketch only. Not GAAP/IFRS metrics, audited reporting, or investment advice. Align cohort rules with your finance team. See our disclaimers.
LIVE NDR BOARD
NDR desk →Scene presets
From starting cohort
NDR DESK
Net dollar retention
110.0%
$110,000 end ÷ $100,000 begin
COHORT BRIDGE PEEL
New logos excluded. GRR is a quiet companion, not the hero.
SAAS BAND LADDER
Literacy rungs only (90 / 100 / 110 / 120). Not a peer database.
Updates as you type. Share writes board state; typing does not rewrite the address bar.
NDR
110.0%
End $110,000 · GRR 92.0%
NDR is ending cohort MRR divided by beginning cohort MRR. Above 100% means the starting book grew on dollars after expansion, contraction, and churn.
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