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Glossary · Paid media

Non incremental spend

Ad budget that buys conversions you would have won without it, classically branded search against customers already intending to purchase. The most common leak the audits surface.

  • Reviewed
  • 2 min read
  • Part of the 14 term glossary
  • Median finding $58k a year across 74 audits
01

What Non incremental spend means

Non incremental spend is ad budget that buys conversions you would have won without it. The classic case is branded search: a customer types your name, your ad sits above your own organic listing, they click the ad, and the platform books a conversion that was going to happen for free.

The spend converts, so no dashboard flags it. Reported ROAS on non incremental campaigns is usually the best in the account, which is precisely the problem: the platforms are taking credit for demand the brand created elsewhere, and the budget keeps flowing toward the campaigns that look best.

02

The Non incremental spend formula and a worked example

The formula and an illustration; the corpus line is the audited figure behind it.

Non incremental spend = spend × (1 − incremental share)

Worked example Illustration, not a client figure

$40,000 a month of branded search with a 20% incremental share means $32,000 a month bought demand that already existed.

Non incremental paid spend appeared in 68% of the 74 audits, the most common finding in the corpus.

03

Why Non incremental spend matters in an audit

Non incremental paid spend appeared in 68% of the 74 audits, the most common finding in the corpus. It is measured with a holdout: pause or geo split the campaign, watch how many conversions continue without it, and the share that continues is the non incremental share.

The formula then turns that share into dollars. Spend multiplied by one minus the incremental share is the non incremental figure, and it is sized per campaign, not per channel, because a prospecting campaign and a branded one on the same platform behave very differently.

The fix is rarely to switch the campaign off. Some branded spend defends against competitors bidding on your name, and some retargeting does reach people who would have lapsed. The audit's finding states how much of the spend is non incremental and what to keep, so the decision is made on a measured figure.

04

Non incremental spend in the audited cases

Published cases where Non incremental spend was at the center of the finding, each with the audited annual figure.

06

Questions about Non incremental spend

What is non incremental spend?

Non incremental spend is ad budget that pays for conversions that would have happened anyway, typically branded search and retargeting aimed at customers already on their way. It converts, so the platforms report it as a success.

How do you test whether spend is incremental?

With a holdout. Pause the campaign in matched regions, or split audiences, and compare conversions with and without the spend. If exposed regions convert 1,000 times and matched holdout regions 850, only 150 of the 1,000 were incremental: a 15% incremental share, while the platform reported all 1,000.

Is branded search always non incremental?

No. When competitors bid on your name, some branded spend defends the click, and that share is incremental. The holdout says how much. The audit states the measured non incremental share and what to keep rather than recommending a blanket pause. Read the five leak patterns →

Know the term. Now measure it in your own numbers.

Non incremental spend, measured against your own accounts in 5 to 7 working days. $10k to $50k of findings, or your money back.

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