Net New ARR

Net New ARR is the single number that captures whether a SaaS business grew or shrank in a period. It rolls four sub-metrics into one: new logo ARR, expansion ARR, contraction ARR, and churn ARR. Subtract the losses from the gains and you have net new ARR. Boards look at this number first because growth-stage SaaS is valued on the slope of the ARR line, not the absolute number.

How Net New ARR Is Calculated

The formula is straightforward:

Net New ARR = New Logo ARR + Expansion ARR − Contraction ARR − Churn ARR

Each input has a strict definition.

Period is usually quarter or year. The metric is reported gross of price increases or net of them depending on the disclosure standard. Investor-grade reporting separates the two so price hikes don't get counted as expansion.

Worked Example

A SaaS company starts Q1 at $20M ARR. During the quarter:

• Closed $1.8M in new logos
• Existing customers expanded by $900K
• Three customers downgraded, losing $200K
• Two customers churned, losing $400K

Net New ARR for Q1 = $1.8M + $900K − $200K − $400K = $2.1M. Ending ARR is $22.1M. The growth rate annualized is roughly 42%.

The board's first question is the mix: 86% of net new came from new logos and expansion, which is healthy. A company netting the same $2.1M while losing $3M to churn and gaining $5.1M from new logos is on a treadmill, even though the headline number looks identical.

When Sales Teams Use Net New ARR

CFOs and CROs build the operating plan off net new ARR by quarter. Sales quota gets set as a share of the new logo and expansion components. The CFO uses net new ARR divided by sales and marketing spend to compute Magic Number and the underlying CAC efficiency. Investors use net new ARR growth to value the company — a SaaS business growing net new ARR 40% YoY at $50M ARR trades at a different multiple than one growing 15%.

ICs see net new ARR less directly. A new logo AE carries a quota that maps to the new logo component. An expansion AE or CSM carries a quota tied to expansion. Renewals reps are paid to suppress the churn and contraction components. Each role is essentially long or short one slice of the net new ARR equation.

Common Net New ARR Gaming Patterns

The metric gets manipulated in three ways. First, multi-year deals get booked as if the full TCV converts to ARR immediately — a three-year contract at $300K total is $100K ARR, not $300K. RevOps teams that conflate TCV and ARR inflate net new by 2-3x. Second, churn gets reclassified as "non-recurring revenue we never should have counted," so it disappears from the denominator instead of showing up as churn ARR. Third, expansion gets timed — customers sign expansion paperwork on the last day of the quarter even though deployment won't happen for three months, so the ARR books before the customer actually pays for more.

The metric also hides the texture of growth. $10M in net new ARR could be 100 new logos at $100K each, 1,000 at $10K each, or one whale at $5M and a long tail of smaller deals. The unit economics of each scenario are radically different. Net new ARR alone won't tell you which, which is why it never travels without a cohort and segment breakdown attached.