Platform Operations · 2026-04-13

Why Sell on Shopify vs Amazon vs Walmart: Platform Comparison for Non-US Sellers

Amazon has the traffic, Shopify gives you brand control, and Walmart is invitation-only. Here is how each platform compares on fees, verification requirements, and revenue potential for international sellers.

Three Platforms, Three Models

If you are an international seller entering the US e-commerce market, you will inevitably evaluate Amazon, Shopify, and Walmart. Each platform operates on a fundamentally different model, and your choice will shape your business for years.

This is not a "which is best" article. The answer for most serious sellers is: start with one, then expand to others. But which one you start with matters enormously.

Amazon: The Traffic Machine

What it is: A centralized marketplace where buyers come to search for products. You list your products alongside competitors. Amazon controls the customer relationship.

Traffic: Approximately 2.7 billion monthly visits in the US. Buyers arrive with purchase intent. Average conversion rate on product pages: 10-15%.

Fees:

Professional seller account: $39.99/month

Referral fee: 8-15% per sale (varies by category, most categories are 15%)

FBA fees: $3-8 per unit (varies by size and weight)

Advertising (optional but increasingly necessary): 10-30% of revenue for competitive categories

Total effective fee rate: 25-45% of revenue (including FBA and advertising)

Address and identity requirements:

Business address required (cannot be PO box or CMRA for non-US sellers)

Postcard verification to physical address

Video verification of business location (increasingly common)

Government-issued ID

Bank account in seller name or business name

Utility bill at business address (for additional verification)

Strengths for international sellers:

Massive built-in traffic (no marketing needed to get started)

FBA eliminates need for US warehouse and logistics

Prime badge increases conversion dramatically

Established buyer trust (customers trust Amazon, not individual sellers)

Weaknesses:

You do not own the customer relationship (no customer emails, no direct marketing)

Price competition is intense (race to the bottom in commoditized categories)

Account suspension risk (Amazon can suspend your account with limited recourse)

High advertising costs in competitive categories

Strict verification process that catches many international sellers

Shopify: The Brand Builder

What it is: A platform for building your own online store. You create your brand, design your store, and drive your own traffic. Shopify provides the infrastructure (hosting, checkout, payments).

Traffic: Zero built-in traffic. You must drive every visitor through paid advertising (Meta, Google, TikTok), content marketing, social media, email marketing, or influencer partnerships.

Fees:

Basic plan: $39/month

Shopify plan: $105/month

Advanced plan: $399/month

Payment processing: 2.9% + $0.30 per transaction (Shopify Payments)

No referral fees, no FBA fees

Total effective fee rate: 5-10% of revenue (much lower than Amazon, but you pay for traffic separately)

Address and identity requirements:

Business address required for store settings and legal pages

Shopify Payments (Stripe-powered) requires US business entity verification

EIN required for tax reporting

Bank account for payouts

Address verification through payment processor (Stripe)

Strengths for international sellers:

You own the customer relationship (email lists, customer data, direct marketing)

Full brand control (design, messaging, pricing)

Higher margins per sale (lower platform fees)

No account suspension risk from marketplace policy changes

Build long-term brand equity (the store is yours)

Weaknesses:

Zero built-in traffic (customer acquisition is your responsibility and your cost)

Customer acquisition cost in the US market: $20-100+ per customer depending on category

Need to build trust from scratch (no marketplace trust signal)

Fulfillment is your responsibility (3PL, self-fulfillment, or Shopify Fulfillment Network)

Higher total cost for early-stage sellers (ad spend often exceeds Amazon fees)

Walmart Marketplace: The Gated Opportunity

What it is: A curated marketplace attached to Walmart.com. Unlike Amazon, Walmart is selective about who can sell on their platform. It is an invitation-only or application-based system with real gatekeeping.

Traffic: Approximately 500 million monthly visits. Lower than Amazon but still substantial. Walmart shoppers tend to be more price-sensitive than Amazon shoppers.

Fees:

No monthly subscription fee

Referral fee: 6-15% per sale (varies by category)

Walmart Fulfillment Services (WFS): similar to FBA pricing

No advertising minimum (but Walmart Connect advertising is growing)

Total effective fee rate: 15-30% of revenue (lower than Amazon in most cases)

Address and identity requirements:

US business entity required (LLC or corporation)

US business address required

US tax ID (EIN) required

US bank account required

Business must have existing e-commerce track record (new businesses are rarely accepted)

Application review process (not guaranteed acceptance)

Strengths for international sellers:

Lower competition (fewer sellers, less saturated categories)

Lower fees than Amazon

Growing traffic and investment from Walmart

Walmart Fulfillment Services mirrors FBA benefits

Price-sensitive customer base responds well to value propositions

Weaknesses:

Acceptance is not guaranteed (Walmart rejects many applications)

Requires existing e-commerce track record (new sellers rarely qualify)

Smaller marketplace than Amazon (lower ceiling for most products)

Less sophisticated seller tools and analytics compared to Amazon

Brand recognition on Walmart.com is lower than Amazon for online shopping

The Verification Reality: All Three Require the Same Foundation

Here is what most platform comparison articles miss: regardless of which platform you choose, the US infrastructure requirements are nearly identical.

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The address requirement is where international sellers most frequently fail across all three platforms. A registered agent address works for LLC formation but fails at payment processor verification. A CMRA/virtual mailbox address is actively flagged by Amazon, Stripe (which powers Shopify Payments), and Walmart.

This means your address infrastructure decision is platform-independent. You need a legitimate commercial address regardless of which platform you sell on. A commercial sublease solves the address requirement for all three platforms simultaneously.

The Recommended Path: Amazon First, Then Expand

For most international sellers, the optimal sequence is:

Phase 1: Amazon (months 1-6)

Start on Amazon because it has built-in traffic. You do not need to solve the customer acquisition problem on day one. Use FBA to handle fulfillment. Focus on product optimization, listing quality, and reviews. Validate product-market fit with real US customers.

Phase 2: Shopify (months 6-12)

Once you have a product that sells on Amazon, build a Shopify store to capture direct sales. Use your Amazon reviews and sales data to inform your Shopify marketing. Start building an email list and direct customer relationships. Run Meta and Google ads pointing to your Shopify store.

Phase 3: Walmart (months 12+)

Apply to Walmart Marketplace using your Amazon and Shopify track record. Your existing e-commerce history makes approval far more likely. Use Walmart Fulfillment Services to mirror your FBA setup.

This sequence works because each phase builds on the previous one. Amazon validates your product. Shopify builds your brand. Walmart expands your reach. And all three use the same underlying infrastructure: your US LLC, your commercial address, and your US bank account.

The Cost of Getting It Wrong

The most expensive mistake international sellers make is not choosing the wrong platform. It is setting up their US infrastructure incorrectly and then having to redo it when verification fails.

Common failure sequence:

1. Form LLC with registered agent address

2. Try to open bank account with RA address (rejected)

3. Sign up for virtual mailbox / CMRA

4. Open bank account with CMRA address (sometimes works initially)

5. Apply to Amazon, get flagged for CMRA address

6. Amazon verification fails, account stuck

7. Need to change address everywhere: LLC amendment, new bank account, new platform registrations

8. 2-3 months lost, $500-1000 in fees for amendments and corrections

The fix is simple: start with the right address from day one. A commercial sublease at a non-CMRA address works for LLC registration, bank account opening, Amazon verification, Shopify/Stripe verification, and Walmart verification. Set it up once, use it everywhere.