Amazon Ads for E-Commerce Brands: When to Invest Beyond Google Shopping

Google Shopping has been the default PPC channel for e-commerce brands since Performance Max campaigns made product-feed advertising nearly automatic. But the math is shifting. According to eMarketer (2025), 71% of online shoppers begin product searches on Amazon, while 49% still start with Google. That gap keeps widening, and every percentage point represents revenue your Google-only strategy can't capture.

Amazon's advertising revenue hit $21.32 billion in Q4 2025 alone, up 23% year-over-year, bringing the full-year total to $68.63 billion. That money didn't materialize from nowhere. It came from brands like yours-brands that realized the ready-to-buy shopper on Amazon converts at rates that Google Shopping can't touch. The question is no longer whether Amazon Ads deserve a seat at your media table. The question is when and how you make the move without cannibalizing what's already working. This post lays out a practitioner's framework for answering that question. Not theory. Not "it depends." Specific signals, cost benchmarks, ad-type selection criteria, and the exact order of operations for an e-commerce brand expanding from Google Shopping into Amazon's advertising ecosystem.

Why the Google-Shopping-Only Model Has a Ceiling

Google Shopping still excels at one thing: catching shoppers early in the research cycle. Google Shopping captures users earlier in the buying journey-during product discovery, research, or comparison-and is perfect for building brand visibility and driving traffic to your own site, where you control the customer experience.

That's a genuine advantage. But it also exposes a structural limitation. Google Shopping averages a 1.9% conversion rate across industries, with top-performing sectors like Health & Beauty and Apparel reaching over 2.7%. Compare that with Amazon: the average Amazon advertising conversion rate has reached 9.96%, approximately 7–8 times higher than the typical e-commerce conversion rate of 1.33% on other platforms.

The reason isn't mysterious. When people head to Amazon, they're typically driven by the intention to buy. Google, on the other hand, works as a vast network of possibilities-people might be there to shop, but they might just as well be researching a product or discovering new trends. Your Google Shopping campaign pays the same CPC whether the click comes from a comparison browser or a buyer with a credit card in hand. There's also a platform-level disruption underway. Amazon has officially withdrawn from Google Shopping ads across all markets. While Amazon had been gradually decreasing their Google Shopping investment since mid-2024, they officially pulled the plug as of late July 2025. This matters because Amazon had accounted for nearly 30% of all Shopping ad impressions in the U.S. Their exit created temporary CPC relief for other advertisers, but reports then observed Amazon re-entering Google Shopping in multiple markets, reversing the earlier pullback and making auctions more competitive again.

The lesson here isn't about Amazon's media-buying whims. It's about dependency. If one competitor's auction behavior materially changes your cost structure, your channel strategy is too narrow.

Five Signals That It's Time to Launch Amazon Ads

Not every brand should run to Amazon tomorrow. Timing matters. Here are the signals that tell you your Google-only approach has reached diminishing returns:

• Your Google Shopping ROAS is declining quarter-over-quarter despite optimization. Rising CPCs across Google's Performance Max campaigns mean incremental clicks cost more while conversion quality stays flat or drops.
• Your products already appear on Amazon-without you controlling the listings. Resellers or unauthorized third-party sellers may already be pushing your products. If they win the Buy Box, you're funding their growth with your brand equity.
• Customers search your brand name on Amazon. Check Brand Analytics or run a quick Amazon search. If your brand name returns competitor products at the top, you're bleeding demand you've already paid to create through Google and social.
• You sell in categories where Amazon dominates discovery.

For 56% of people, Amazon is step one in the buying journey, well ahead of Google (21%) and Walmart (12%). Categories like home goods, electronics, health and beauty, and pet products skew even higher. - Your product's average order value can absorb Amazon's fee structure. Amazon's referral fees (typically 8–15%) plus fulfillment costs require margin headroom. Products under $15 with thin margins face a tougher path to profitability. If three or more of these signals apply to your business, Amazon Ads should be in your next quarterly budget.

Amazon's Ad Ecosystem: What You're Actually Buying

Amazon's advertising stack has expanded far beyond Sponsored Products. Understanding each layer prevents the common mistake of treating Amazon like a single-channel play.

Sponsored Products: The Bottom-Funnel Workhorse

Sponsored Products are the most widely used Amazon ad type-cost-per-click ads that appear within search results and product detail pages, promoting individual items based on relevant keywords or product targeting. They're analogous to Google Shopping PLAs in function, but with a critical difference: the shopper is already on a commerce platform.

Average CPCs for Sponsored Products hover around $0.85 to $1.10 depending on category. Supplements and electronics push well above $2.00. With an average conversion rate of 10%, Amazon Ads for sellers are highly effective at driving sales because Amazon targets customers who are actively looking to purchase products.

Start here. Every brand entering Amazon advertising should build a Sponsored Products foundation before layering on anything else.

Sponsored Brands: Brand Defense and Category Ownership

Sponsored Brands are designed for advertisers looking to build brand awareness while showcasing multiple products within a single ad. These ads appear prominently in search results and allow advertisers to drive traffic to a brand's Amazon Store or a dedicated landing page.

They command higher CPCs-usually between $1.10 and $2.50 per click. That premium buys something Sponsored Products can't: brand storytelling above the fold. The video format variant deserves special attention. Sponsored Brands Video shows an average CTR of 0.89%, 2.6x higher than static ads, with a conversion rate of 11.2%.

Sponsored Display and Amazon DSP: Full-Funnel Reach

Amazon DSP is Amazon's programmatic advertising solution, enabling brands to buy display, video, and audio ads both on and off Amazon. This is where Amazon stops being "just a marketplace" and starts acting like a media company.

While DTC brands obsess over Meta and Google, Amazon DSP is quietly delivering 3–4x higher conversion rates with 40% lower customer acquisition costs. The power comes from purchase-based targeting. Amazon DSP is the only place where you can target users based on actual purchase behavior across 200 million+ Prime members. When someone buys protein powder on Amazon, that's not an interest signal-it's a purchase confirmation. This behavioral precision creates conversion opportunities that Meta's interest targeting cannot match.

DSP is not a starter tool. Amazon DSP advertising works best when it supports your existing PPC engine. Therefore, align DSP campaigns with branded defense, competitor capture, and non-brand search from your core Amazon PPC playbook. DSP often influences conversions earlier in the journey. Wait until your Sponsored Products campaigns are profitable before unlocking this layer.

The Real Cost: CPC Benchmarks, ACoS, and Fee-Layer Math

Brands coming from Google Shopping often underestimate Amazon's total cost structure because they compare CPCs in isolation. That comparison is misleading.

The current average CPC on Amazon is $1.18 for 2026. But the real number depends on your category. Category-specific forecasts include Health & Personal Care at $1.45–$1.55, Supplements at $2.50–$7.00+, Electronics at $1.35–$1.60, and Home & Kitchen at $1.00–$1.18.

Beyond CPC, Amazon charges referral fees (8–15% of sale price), FBA fulfillment fees (if you use it), and potentially storage fees. Layer those together, and your effective cost-per-sale calculation looks very different from Google Shopping, where the only platform cost is the click itself. The metric that matters on Amazon isn't CPC-it's ACoS (Advertising Cost of Sales). The overall industry average ACoS is typically around 30%; a profitable campaign aims for an ACoS below its break-even ACoS, with many sellers targeting a lower range of 15% to 25% for established products.

Projected average ACoS for 2026 is 32–35%, up from 30.20% in 2025, with top performers maintaining 23–26%. If your product margins can't absorb a 30% ACoS during the learning phase, you either need to raise prices, cut COGS, or delay your Amazon launch until the economics work. One number deserves special attention: TACoS (Total Advertising Cost of Sales). This broader metric looks at Amazon advertising spend as a percentage of total sales, giving a better picture of how ads are supporting overall business growth. ACoS might be high for a given category, but if that advertising spend is leading to larger organic sales growth, TACoS will identify that opportunity. A declining TACoS over three to six months is the clearest signal that your Amazon ad investment is building durable value.

Amazon's Pay-to-Play Reality-and How to Work Within It

Organic visibility on Amazon continues to decline as ad inventory expands. According to Marketplace Pulse, more than 70% of Amazon sellers now use Amazon Ads to drive visibility, up from roughly 40% five years ago. Sponsored placements dominate above-the-fold real estate for high-intent searches. If you enter Amazon's marketplace without an ad budget, most potential buyers will never see your product. This isn't a bug-it's Amazon's business model. As Amazon shifts from retailer to infrastructure provider, advertising revenue has become essential to subsidizing the rest of the retail operation. Without the high-margin advertising revenue, Amazon's retail business would be increasingly unprofitable.

But "pay to play" doesn't mean "pay blindly." The brands that win on Amazon treat ads as an investment in organic momentum, not a permanent tax.

The PPC-to-Organic Flywheel

Neither PPC nor organic ranking is "better" because successful Amazon sellers need both. PPC drives initial sales velocity that triggers organic ranking improvements, while organic rankings deliver sustainable, high-margin sales once achieved.

Here's how the flywheel works in practice: Brands that increase targeted PPC spend for 60–90 days on their highest-converting keywords typically see measurable organic rank improvements for those specific terms, often climbing 10–15 positions. The result is increased total sales volume while overall advertising efficiency improves.

A 1% improvement in conversion rate can reduce your effective cost per acquisition by 15–20% without changing a single bid. Brands spending 8–12% of revenue on ads with strong listing fundamentals consistently outperform brands spending more with weak listings. Listing quality isn't a nice-to-have-it's the multiplier that makes every ad dollar work harder.

A Practitioner's Launch Sequence: Google Shopping to Amazon Ads

Moving budget from Google Shopping to Amazon isn't a toggle flip. It's a migration with dependencies. Here's the sequence that minimizes wasted spend.

Phase 1: Foundation (Weeks 1–4)

Enroll in Brand Registry. Without it, you can't access Sponsored Brands, A+ Content, Brand Analytics, or the Brand Referral Bonus. Amazon Brand Registry verifies your trademark ownership and unlocks Sponsored Brands advertising, custom Brand Stores, A+ Content, and enhanced brand protection tools. You must enroll before running any Sponsored Brands campaigns.

Optimize listings before spending a dollar on ads. Images (seven minimum), keyword-rich titles, structured bullet points, and A+ Content all directly impact conversion rate. Ads amplify listings. They do not replace them.

Launch automatic Sponsored Products campaigns with a conservative daily budget ($30–$50 per product) to gather keyword data. Let Amazon's algorithm find which search terms convert for your catalog.

Phase 2: Optimization (Weeks 5–12)

Mine the Search Term Report from your automatic campaigns. Move high-converting terms into manual exact-match campaigns. Add poor-performing terms as negative keywords. One kitchenware seller reduced wasted spend immediately by adding negatives-and improved their overall campaign ROAS by 22%.

Scale winning campaigns incrementally. After 3–6 months of gathering performance data, you can typically reduce your advertising percentage to 20–25% while maintaining or growing sales.

Phase 3: Expansion (Months 4–6)

Add Sponsored Brands campaigns for your top-selling products. Build a Brand Store to give those ads a dedicated landing experience. Test Sponsored Brands Video-the engagement lift is significant and the format is still underutilized in many categories. Consider the Brand Referral Bonus for driving external traffic. With Amazon's Brand Referral Bonus, you can earn a bonus averaging 10% of qualifying sales when you drive traffic to products in the Amazon store from search, social media, and other sources. If you're already running Google Ads, you can use Amazon Attribution tags to earn credits that offset referral fees-effectively subsidizing your cross-platform strategy.

Phase 4: Full-Funnel Maturity (Months 6–12)

In 2026, more brands are using Amazon DSP because sponsored inventory is crowded and CPC pressure remains high in mature categories. If your catalog already has conversion proof, DSP can help you expand reach without relying only on bottom-funnel keyword traffic.

At this stage, you're not choosing between Google Shopping and Amazon. You're orchestrating both. Google captures research-phase shoppers and drives brand awareness. Amazon captures purchase-ready buyers and builds organic ranking momentum. Each platform feeds the other.

What the Top-Ranking Articles Get Wrong

Most content comparing Google Shopping and Amazon Ads frames the decision as binary: pick one or the other. That framing serves neither platform well-and it serves your business even worse. The real mistake is treating Amazon like a simple media buy. For sellers, rising ad revenue means navigating an increasingly pay-to-play environment. Amazon Ads isn't just an ad platform-it's a marketplace operating system where your paid performance directly shapes your organic visibility, your BSR (Best Sellers Rank), and your eligibility for features like Amazon's Choice badges. Another blind spot: ignoring CPC inflation. CPCs continue rising because over 70% of Amazon sellers now actively advertise (up from 40% five years ago), declining organic visibility forces more paid support, and algorithm changes favor sponsored placements. Brands that entered Amazon three years ago locked in lower CPCs and built organic positions that now serve as competitive moats. Waiting another year means entering a more expensive, more competitive auction. Finally, most guides understate the importance of Amazon's evolving ad technology. Campaign Manager brings together Amazon's advertising console and Amazon DSP. Powered by AI, Campaign Manager replaces fragmented workflows with a single operational command center that streamlines setup, management, and optimization. The platform is actively collapsing the complexity gap that once made Amazon advertising accessible only to large agencies. Mid-market brands can now self-serve more effectively than ever.

How to Protect Your Google Shopping Investment While Scaling Amazon

Adding Amazon Ads doesn't mean gutting your Google Shopping budget. It means reallocating incrementally based on performance data. Start by identifying your Google Shopping campaigns with the lowest ROAS or highest CPC relative to conversion value. Those are your first candidates for budget reallocation to Amazon. Keep your highest-performing Google campaigns running-particularly for branded terms and category keywords where your website conversion rate exceeds Amazon's after accounting for fees. Track both platforms against a unified KPI: blended ROAS across channels and customer acquisition cost by platform. Amazon will typically show higher ROAS for bottom-funnel product searches. Google will show stronger performance for top-of-funnel discovery and branded defense on your own domain. Neither answer is permanent; rebalance quarterly based on data, not assumptions.

Advertisers report more efficient ROAS on Amazon for product-based campaigns-about 5.2x compared to Google's 4.1x, according to Insider Intelligence (2025). That gap alone justifies a test allocation. But the long-term play is dual-platform fluency: knowing which keywords, products, and audiences belong on which platform, and having the measurement infrastructure to prove it. The brands that thrive over the next two years won't be the ones that picked a side. They'll be the ones that built systems to exploit the distinct strengths of both platforms-Google's reach and Amazon's intent-without over-indexing on either. The first step isn't dramatic. It's disciplined. Launch your Sponsored Products campaigns, measure rigorously for 90 days, and let the data tell you how fast to scale. The opportunity cost of waiting another quarter, while CPCs keep climbing and competitors keep building organic positions, is the only expense you can't get back.