Shopify Payments vs. a Third-Party Gateway: The Real Cost Math
Compare Shopify Payments vs a third party gateway with simple break-even math, and learn the monthly volume where an outside merchant account saves money.
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On this page 7 sections
- How Shopify Payments Pricing Works
- The Shopify Third-Party Transaction Fee
- Shopify Payments vs. Third-Party Gateway: The Break-Even Calculation
- Features You Lose With a Shopify External Payment Gateway
- When You Need a Separate Shopify Merchant Account
- How to Switch Without Checkout Downtime
- Next Steps: Run Your Own Numbers
Key takeaways
- Shopify adds its own percentage fee when you use an outside gateway, so a lower processing rate alone doesn't guarantee savings.
- Switching pays off only when your outside processor's effective rate beats Shopify Payments by more than that extra fee, at enough volume to cover fixed monthly costs.
- Some Shopify features may depend on Shopify Payments being active. Price those losses before you switch.
- Get your new merchant account approved and tested before you turn anything off, so checkout never goes dark.
The Shopify Payments vs. third-party gateway decision looks like a simple rate comparison. It isn't. Shopify charges an additional transaction fee on orders processed through outside providers, and that fee can erase the savings of a cheaper processor. This guide covers five things:
- How each option is priced
- How to calculate the monthly sales volume where switching breaks even
- Which features you might give up
- When a separate merchant account is required
- How to change processors without interrupting checkout
All numbers in this article are illustrative. Shopify's processing rates and third-party fees vary by plan and change over time. Confirm current terms in your Shopify admin and plan documentation before you run your own math.
How Shopify Payments Pricing Works
Shopify Payments is Shopify's built-in card processor. It uses flat-rate pricing: a percentage of each sale plus a small per-transaction fee. The rate depends on your Shopify plan, and higher plans generally get lower rates.
Flat-rate pricing is predictable. A debit card and a premium rewards card cost you the same, even though the underlying interchange is very different for the two. (Interchange is the fee the card-issuing bank charges.)
For some stores that convenience is worth paying for. Other stores pay more than they need to. That's especially likely if you have higher volume, larger tickets or a lot of debit card traffic, because a flat rate can mean overpaying on the cheaper transactions.
To compare fairly, work out your effective rate:
- Pull your last three full months of Shopify Payments payouts.
- Add up total processing fees. Leave out refunds and chargeback fees for now.
- Divide by total gross card sales.
The result is your real cost per dollar processed. Every alternative has to beat this number. For more on how the two pricing models behave, see our comparison of interchange-plus vs. flat-rate pricing.
The Shopify Third-Party Transaction Fee
When you process cards through a provider other than Shopify Payments, Shopify adds its own fee on top of what your processor charges. This Shopify third-party transaction fee is a percentage of each order, and it gets smaller on higher Shopify plans.
Three points matter for the math:
- It scales with volume. Because the fee is a percentage, it grows as your sales grow. A cheaper processor can't outrun it with volume alone. Your rate advantage has to be larger than the fee.
- It stacks on your processor's fees. You pay your processor's rates, any gateway fees and Shopify's fee.
- It's plan-dependent. Upgrading your Shopify plan lowers the fee but raises your subscription cost. That trade-off belongs in your calculation too.
Check your plan's current fee, and which payment methods it applies to, before you assume anything.
Shopify Payments vs. Third-Party Gateway: The Break-Even Calculation
Here's the formula. Use effective rates, not advertised rates.
Monthly savings = Monthly card volume × (Shopify Payments effective rate − outside processor effective rate − Shopify third-party fee) − outside fixed monthly costs
Fixed monthly costs are the recurring charges from the new setup. They include gateway fees, merchant account fees and PCI compliance fees.
To find the break-even volume:
Break-even volume = Fixed monthly costs ÷ (Shopify Payments rate − outside processor rate − Shopify third-party fee)
If the number in parentheses is zero or negative, there is no break-even point. Switching costs more at every volume.
An Illustrative Example
Assume these hypothetical figures:
- Shopify Payments effective rate: 3.0%
- Outside processor effective rate: 2.3%
- Outside fixed monthly costs: $50
Scenario A: The Shopify third-party fee on your plan is 1.0%. 3.0% − 2.3% − 1.0% = −0.3%. You lose money at every volume.
Scenario B: You're on a plan where the fee is 0.5%. 3.0% − 2.3% − 0.5% = 0.2%. Break-even = $50 ÷ 0.002 = $25,000 per month.
| Monthly Card Volume (Illustrative) | Scenario A: Net Monthly Result | Scenario B: Net Monthly Result |
|---|---|---|
| $10,000 | −$80 | −$30 |
| $25,000 | −$125 | $0 (break-even) |
| $50,000 | −$200 | +$50 |
| $100,000 | −$350 | +$150 |
The lesson: the size of your rate gap matters more than your volume. Volume only helps after the gap is positive.
Variables That Shift the Math
- Card mix. On interchange-plus pricing, a store with heavy debit traffic may see a lower effective rate than one dominated by rewards and business cards.
- Average ticket. Per-transaction fees hit small orders harder. If you sell low-priced items, model the fixed per-order cost separately.
- Plan upgrade cost. If upgrading your Shopify plan lowers the third-party fee, add the subscription difference to your fixed costs and rerun the numbers.
- Chargeback and dispute fees. Compare them across providers, especially if your category sees frequent disputes.
- Interchange downgrades. On interchange-based pricing, card-not-present transactions that are missing data such as AVS can cost more.
For a fuller picture of what online stores typically pay, read our guide to ecommerce credit card processing fees.
Features You Lose With a Shopify External Payment Gateway
Cost isn't the only factor. Depending on your plan, your region and Shopify's current policies, some features may be tied to Shopify Payments. Before you move to a Shopify external payment gateway, check whether you'd lose or need to replace any of these:
- Shop Pay and Shop Pay Installments. Accelerated checkout and buy-now-pay-later options may depend on Shopify Payments.
- In-admin chargeback handling. With Shopify Payments, disputes appear inside Shopify and you answer them there. With an outside processor, you'll usually respond through the processor's portal.
- Unified payouts and reporting. With Shopify Payments, sales, fees and payouts live in one place. An outside setup means reconciling across two systems.
- Local currency features. Some multi-currency selling options may require Shopify Payments.
- Built-in fraud analysis. Shopify's order risk tools may work differently, or show less detail, with outside processors.
Also confirm how Shopify handles card processors. It typically allows one credit card processor at a time, while alternative methods like PayPal can run alongside it. You can still control what customers see. Our walkthrough on hiding or reordering payment methods at Shopify checkout covers how.
If losing a feature hurts conversion, the cost can exceed your fee savings. A small dip in checkout completion can outweigh a fraction of a percent saved on fees.
When You Need a Separate Shopify Merchant Account
Sometimes the break-even math doesn't matter because Shopify Payments isn't an option. You may need a dedicated Shopify merchant account through an outside processor in these situations:
- Your products are restricted under Shopify Payments' terms. Many regulated or higher-risk categories aren't eligible for Shopify Payments, even when Shopify allows the store itself. Examples can include certain supplements, CBD and vape products. Legality and eligibility vary by product and by state and federal law.
- Shopify Payments isn't available in your country or for your business structure.
- Your Shopify Payments account was closed or restricted, and you need a stable processing relationship.
- You need underwriting that fits your business model. Stores with preorders, subscriptions or long fulfillment windows sometimes need a processor that underwrites those risks directly instead of applying blanket rules.
- You want negotiated pricing. Interchange-plus or other custom pricing usually requires your own merchant account.
Your gateway must be on Shopify's supported provider list. Your business must also be accurately represented during underwriting, so describe your actual products, fulfillment times and refund policy. Misrepresenting what you sell can lead to account termination and placement on industry watch lists.
If your category is regulated, a provider that specializes in high-risk merchant accounts can review whether your business fits a compliant path. Our guide to when to use a Shopify third-party payment gateway walks through the decision in more detail.
How to Switch Without Checkout Downtime
Among Shopify Payments alternatives, the processor you pick matters less than the order you switch in. Never disable Shopify Payments until the new setup is live and tested.
Before You Switch
- Get approved first. Apply for your merchant account and wait for written approval, including any reserve or volume terms.
- Confirm the gateway connection. Make sure your processor works with a Shopify-supported gateway. MannyPay supports Shopify integration and works with payment gateways such as Authorize.net and NMI.
- Check what won't migrate. Saved customer cards and subscription billing tokens often don't transfer automatically. Ask both providers what's possible before you assume renewals will continue.
- Review your remaining Shopify Payments balance. Pending payouts and any reserves stay with Shopify Payments. So do future chargebacks on past orders.
Switch Day
- Pick a low-traffic window. Avoid sales and holiday rushes.
- Enter your gateway credentials in Shopify's payment settings.
- Run a few live, low-dollar test orders with different card brands, then refund them.
- Confirm the transactions appear in your processor portal and that the refunds post.
- Check that your fraud filters, AVS and CVV settings, and 3D Secure behave as expected.
The First 30 Days
- Watch approval rates daily. A sudden rise in declines usually points to a configuration issue.
- Reconcile deposits against Shopify orders weekly at first.
- Tell your new processor about planned promotions so unusual volume doesn't trigger a review. Our article on warning your processor before a sales spike explains why.
- Update any apps or accounting integrations that pulled data from Shopify Payments.
Next Steps: Run Your Own Numbers
Gather three numbers:
- Your effective rate from the last three months.
- The third-party fee on your current Shopify plan.
- A written quote showing an outside processor's expected effective rate and every fixed monthly fee.
Plug them into the break-even formula. If the gap is negative, Shopify Payments is likely the better deal for now. If the gap is positive and your volume is above break-even, weigh the features you'd give up before you decide.
MannyPay offers online payment processing for e-commerce stores. Request a free quote, and a MannyPay specialist will respond within one business day.
This article is for general educational purposes and is not legal, tax or financial advice. Card network rules and state laws change; confirm current requirements for your business.
