Benefits of Negative Keywords for Amazon Ads

Where negative keywords create the most impact

Negative keywords matter most when broad or phrase match campaigns begin capturing searches that look similar but lack purchase intent. Those queries may generate clicks without orders, which raises overall ad cost and weakens reported conversion rates. Blocking them keeps campaign data cleaner and makes it easier to see which terms actually contribute to profitable sales.

• Reduce spend on queries that rarely convert
• Protect conversion rate used in break-even CPC math
• Keep campaign-level margins closer to target

How to find negative keyword candidates

Start with the Amazon Ads Search Term report and look for terms that spent money without producing orders or showed abnormally low ROAS. Not every low-performing term should be blocked immediately; some may need more data, while others may justify a lower bid instead of a negative. Teams can use a tool like Amazon Negative Keyword Tool by Todoza to rank candidates using campaign-specific performance signals rather than a single fixed threshold.

• Filter for clicks with zero orders
• Flag off-topic searches unrelated to the product
• Compare spend against average order value and margin

When negative keyword hygiene matters most

Negative keyword hygiene becomes especially valuable for high-volume or high-CPC categories, where irrelevant clicks quickly consume budget. It also matters when a campaign is scaling, because broader targeting tends to surface more off-target queries. In these situations, regular negative keyword review supports a more stable effective CPC and gives sellers a clearer view of the true break-even point.