Quick Answer
Multi-platform sellers must consolidate revenue from all channels for GST/HST threshold tracking and income tax purposes. Each platform has a different payout structure — Shopify Payments, Amazon settlements, and Etsy deposits all need separate reconciliation before combining into your books.
Selling on multiple platforms significantly multiplies your bookkeeping complexity. Each platform pays you differently, charges different fee types, and may or may not collect GST/HST on your behalf. Getting this right requires a systematic approach.
The Core Challenge: Platform Revenue Consolidation
Each platform deposits money into your bank account from different sources, on different schedules, with different net amounts. You need to reconcile each platform to gross sales before combining them. Your total gross sales across all platforms is what matters for GST/HST threshold tracking and income tax.
Platform-by-Platform Reconciliation
| Platform | Payout Frequency | Tax Collection | Key Report |
|---|---|---|---|
| Shopify | 1–3 business days | You collect | Payments payout report |
| Amazon.ca | Every 14 days | You collect | Settlement report |
| Etsy | Weekly or monthly | Etsy collects GST/HST | Finance/tax summary |
GST/HST When Using Multiple Platforms
Your GST/HST registration threshold is based on all taxable supplies combined, not per platform. If Shopify brings in $18,000 and Amazon brings in $15,000, you've crossed $30,000 and must register — even though each platform alone is under the threshold. Etsy collects GST/HST on your behalf for its platform, but that revenue still counts toward your threshold.
Don't File GST/HST Twice on Etsy Sales
Etsy collects and remits Canadian GST/HST for marketplace sales directly to the CRA. If you're also registered for GST/HST, you must not charge additional tax on Etsy sales — Etsy has already handled it. Only charge GST/HST through your own registered channels (Shopify, Amazon).
One Bookkeeper for All Your Platforms
MaxRefund consolidates your Shopify, Amazon, and Etsy books monthly — one reconciled set of records, one GST/HST filing, one tax return.
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