# What Are Negative Keywords? Negative Keywords for Amazon Sellers Explained Author: Himanshu Gaba Author URL: https://sellerview.ai/blog/author/himanshu-gaba Published: 2026-06-07 Meta Title: What Are Negative Keywords? Amazon Seller Guide Meta Description: Negative keywords cut wasted Amazon ad spend by 28% and lift ROAS 22%. Learn how to find, add, and manage them the right way. URL: https://sellerview.ai/blog/what-are-negative-keywords-amazon-sellers Most sellers obsess over which keywords to add. Almost nobody pays attention to which keywords to block. That's backwards. The fastest way to fix a bleeding PPC account isn't a new keyword — it's a negative keyword. In 300+ accounts I've audited at Adsify, wasted spend on irrelevant search terms is the single biggest leak, and it's also the easiest one to plug. ## What Are Negative Keywords? Negative keywords are search terms you tell Amazon to never show your ads for. Think of them as a filter on the front door. A normal keyword says "show my ad when someone searches this." A negative keyword says "do not show my ad when someone searches this — no matter what." Here's why this matters: when you run broad, phrase, or auto campaigns, Amazon matches your ad against thousands of search terms you never picked. Some convert. Most don't. A "stainless steel water bottle" listing gets shown for "plastic water bottle," "water bottle for kids," "water bottle cleaning brush" — searches that will never buy your product but will happily click and burn your budget. Negative keywords stop that bleed. If you're running PPC and you've never added a single negative keyword, I can almost guarantee 15–30% of your ad spend is going to searches that have zero chance of converting. That's not a strategy problem. That's a money-on-fire problem. ## How Negative Keywords Work on Amazon Amazon gives you exactly two negative match types. Not four. Two. And the difference matters. **Negative exact** blocks one specific search term — the exact word sequence, including plurals and minor misspellings. If you negate "water bottle cleaning brush" as exact, your ad stops showing for that precise search but still shows for "water bottle cleaning kit." Use this when you want a scalpel. Max 10 words, 80 characters. **Negative phrase** blocks any search that contains your phrase in order, even with extra words around it. Negate "cleaning brush" as phrase and you block "water bottle cleaning brush," "long cleaning brush," "cleaning brush set" — everything with that string. Use this when you want a hammer. Max 4 words, 80 characters. The limits sellers forget: you can add up to 1,000 negative keywords at the campaign level AND 1,000 more at the ad group level — 2,000 exclusions per ad group total. You will almost never hit this ceiling, so there's no excuse for a thin negative list. Where you add them changes the blast radius. Campaign-level negatives apply to every ad group inside that campaign. Ad group-level negatives only hit the one ad group you choose. For most sellers, add negatives at the ad group level so the block stays narrow and intentional. Go campaign-level only when you're certain that term should never appear anywhere in that campaign. ## Why Negative Keywords Matter for Your Profitability Run the math. Your actual profit is: Revenue − Amazon fees − ad spend − returns − COGS. Most sellers ignore three of those. Negative keywords attack the "ad spend" line directly — and it's the line you have the most control over today, right now, without changing your product or your price. Here's the framework. Your break-even CPC is roughly: ASP × Conversion Rate × Desired ACoS. If a search term has burned 20 clicks and converted zero times, its conversion rate is functionally 0%, which means its break-even CPC is also zero. There is no bid low enough to make that term profitable. You're not "optimizing" it. You're subsidizing it. The only correct move is to negate it. The numbers back this up. A Tinuiti study found brands that actively managed negative keywords cut wasted ad spend by 28% and lifted ROAS by 22%. Let that sink in — a 22% ROAS jump from removing things, not adding them. That's the highest-ROI hour you'll spend in your ad account this week, and it costs nothing but attention. And remember: ACoS hides this damage. Your blended TACoS is what actually tells you if the leak is real. If your ad spend is climbing but total sales aren't, irrelevant search terms are usually the culprit. ## Common Mistakes Sellers Make With Negative Keywords **Mistake 1: Negating too early.** A search term with 3 clicks and no sales is not a loser yet — it's a sample size of nothing. My rule: a term needs to spend roughly 33% of your ASP, OR rack up 15–20 clicks with zero conversions, before you negate it. Pull the trigger sooner and you'll kill keywords that just hadn't converted yet. **Mistake 2: Using negative phrase like a flamethrower.** Sellers negate "bottle" as phrase to cut one bad term and accidentally block 40 profitable searches that contain the word "bottle." Broad negative phrases are where good accounts go to die. When in doubt, use negative exact. **Mistake 3: Negating winners from auto campaigns and forgetting to harvest them first.** When a search term converts well in your auto or broad campaign, the move is: add it as an exact keyword in your manual campaign, THEN negate it in the auto campaign. This forces Amazon to push that quality traffic into the campaign where you control the bid. Most sellers do only half of this — they negate without harvesting, and lose the keyword entirely. **Mistake 4: Treating it as a one-time cleanup.** New search terms appear every week as Amazon explores. A negative list you built three months ago is already stale. This isn't a project. It's hygiene. ## How to Use Negative Keywords the Right Way 1. **Pull your Search Term Report.** Seller Central → Reports → Advertising → Search Term Report. This shows every actual customer search that triggered your ads. This is your source of truth — not guesses. 2. **Sort by spend, then scan for zero-conversion terms.** Any search term that's spent more than 15–20 clicks (or ~33% of your ASP) with no orders is a candidate. Flag it. 3. **Choose your match type deliberately.** One specific bad term → negative exact. A whole category of irrelevant searches sharing a word → negative phrase, carefully. 4. **Add at the ad group level by default.** Keep the block narrow. Only escalate to campaign-level when the term should never appear in any ad group. 5. **Harvest before you negate.** If the term converted, move it to a manual exact campaign first, then negate it in the source campaign. 6. **Set a cadence.** New launches: review weekly — spend gets out of hand fast in the first 30 days. Established products: every 14 days, with a deeper audit quarterly to catch terms that have become relevant as your catalog or market shifted. ## How Sellerview Helps You Track Negative Keywords The hard part isn't adding negatives — it's spotting which terms are quietly draining profit while your ACoS still looks "fine." Sellerview surfaces this at the SKU level, so you see exactly where ad spend is leaking before it shows up as a bad month. The takeaway is simple: every search term you don't actively manage is a search term Amazon manages for you, with your money. Negative keywords are how you take that control back — and it's the cheapest profit win available in your account right now. **See your real profit, SKU by SKU, on** [**Sellerview.ai**](https://Sellerview.ai) **→ start your free trial.** --- This blog is powered by Superblog. Visit https://superblog.ai to know more. ---