How much does External CAD Processor cost compared to Shopify Payments?

External CAD Processor charges 2.9% + $0.30 per transaction. If used as an external gateway on Shopify, Shopify adds an extra 2.0% fee on Basic, 1.0% on Grow, or 0.6% on Advanced. Switching to native Shopify Payments eliminates the third-party surcharge entirely.

When does upgrading from Shopify Basic to Grow or Advanced pay for itself?

On annual billing, upgrading from Basic ($29/mo at 2.9%) to Grow ($79/mo at 2.7%) pays for itself at $25,000/month in sales. Upgrading from Grow to Advanced ($299/mo at 2.5%) pays for itself at $110,000/month in sales.

2026 E-Commerce Margin Audit

Canadian E-Commerce Processing Fee Calculator

Compare domestic credit card processing costs and plan tier break-even points for Canadian online stores scaling past $30k/mo.

Comparing against: External CAD Processor (2.9% + $0.30)

Monthly Gross Volume $35000

$2,000/mo $125,000/mo $250,000/mo

Average Order Value (AOV) $75

$15 0 orders/mo $500

Estimated Annual Profit Recovered

$0 / year

By eliminating third-party gateway penalties and optimizing your plan tier.

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External Gateway

External CAD Processor + Surcharge

2.9% + $0.30 + Shopify 3rd-party penalty

Total Monthly Cost

0.0% of revenue

Shopify Basic

2.9% + $0.30

$29/mo plan + processing

Total Monthly Cost

0.0% of revenue

Shopify Grow

2.7% + $0.30

$79/mo plan + processing

Total Monthly Cost

0.0% of revenue

Shopify Advanced

2.5% + $0.30

$299/mo plan + processing

Total Monthly Cost

0.0% of revenue

How External CAD Processor vs. Shopify Fees Work in 2026

1. The Third-Party Gateway Penalty: When you process payments through an external provider like External CAD Processor (2.9% + $0.30 per order), Shopify charges an additional transaction surcharge of 2.0% on Basic, 1.0% on Grow, and 0.6% on Advanced. Activating Shopify Payments waives that surcharge immediately.

2. Plan Upgrade Break-Even Points: Higher Shopify plans reduce your credit card rate from 2.9% (Basic) to 2.7% (Grow) and 2.5% (Advanced). On annual billing, upgrading from Basic to Grow pays for itself once your store passes $25,000/month in sales, and upgrading from Grow to Advanced pays for itself above $110,000/month.